DOCSLIB.ORG

About the Editor

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
About the Editor About the Editor Fritz Scholz is a professor at the University of Greifswald in Germany. Following studies in chemistry at Humboldt University, Berlin, he obtained a Dr. rer. nat. and a Dr. sc. nat. (habilitation) from that same university. In 1987 and 1989, he worked with Alan Bond in Australia. His main interest is in electrochemistry and electroanalysis. He has published more than 250 scientific papers, and he is editor and co-author of the book “Electroanalytical Methods” (Springer 2002 and 2005; Russian Edition, BINOM 2006), co-author of the book “Electrochemistry of Immobilized Particles and Droplets” (Springer 2005), co-editor of the “Electrochemical Dictionary” (Springer 2008), and co-editor of volumes 7a and 7b of the “Encyclopedia of Electrochemistry” (Wiley-VCH 2006). In 1997, he founded the Journal of Solid State Electrochemistry (Springer) and has served as Editor-in-Chief since then. He served as editor of the series “Monographs in Electrochemistry” (Springer), in which modern topics of electrochemistry are presented. Scholz introduced the technique “Voltammetry of Immobilized Microparticles” for studying the electrochemistry of solid compounds and materi- als, and he introduced the concept of threephase electrodes to determine the Gibbs energies of ion transfer between immiscible liquids. M. Bouroushian, Electrochemistry of Metal Chalcogenides, Monographs 351 in Electrochemistry, DOI 10.1007/978-3-642-03967-6, C Springer-Verlag Berlin Heidelberg 2010 About the Author Mirtat Bouroushian received a PhD for the electrodeposition and characterization of binary and ternary selenides and tellurides, from the National Technical University of Athens (NTUA; Greece, 1998). He is currently Assistant Professor of Solid State Chemistry in the Chemical Engineering School of NTUA. His research activities apply on the electrosynthesis and photoelectrochemistry of semiconductors and the electrodeposition and characterization of metal–matrix composites. He is focused presently on the investigation of electrochemical nucleation/growth phenomena and interface charge transfer kinetics in connection with the photo-sensitization of porous titania electrodes by chalcogenide semiconductors. He has published sev- eral papers on the electrochemistry of II–VI chalcogenides and has participated in European and Greek research and educational projects. He is the author of a univer- sity textbook on solid-state chemistry and co-author of a general chemistry textbook for secondary school, as well as scientific articles for the public. 353 Index A CdTe solar cells, electrodeposited, Actinoid chalcogenides, 29–32 137–139 Advanced oxidation processes, 268 photoelectrochemistry, 218 Alloys, 6, 17–18, 22–24, 26, 37, 41, 45–47, Calcium chalcogenides, 29 49–51, 70, 77–80, 85, 106–108, Carbon, 3, 5–6, 10, 49, 71–72, 114, 116–117, 128, 169, 194, 233, 237, 310, 318, 188, 219, 268, 270, 310, 313–314, 320, 334–335 316–321, 325, 330–331, 342 Aluminum chalcogenides, 48–49 Cathodic electrodeposition, 78–84, 92, 94–95, Anodic alumina membranes (AAM), 190 98, 101, 104, 107, 122–123, 125, Anodization, 27, 84–85, 91, 128, 190 127–128, 130, 137, 156, 195, 258 Antimony chalcogenides, 128–132 Cationic clusters, 15 electrodeposition, 128–132 Cauliflower morphology, 96, 191 Arsenic, 44, 337, 339 Cerium chalcogenides, 29–32 Atomic layer epitaxy, 137, 155, 162–169, Cesium chalcogenides, 28–29 172–182 Chalcogenide amorphous, 8–9, 25–26 catalysts, 311–317 B cathodes, 326–329 Band edge pinning, 214 clusters, pseudo-ternary clusters, 310–311 Barium chalcogenides, 29 complexes, 17, 36 Beryllium chalcogenides, 29 glasses, 24–25, 337–339 Bismuth chalcogenides, 51–52 solid structures, 19–22 electrodeposition, 51 Chalcogenophosphates, 246, 328 Bismuth sulfide, 44, 51, 168, 262–263, 290 Chalcogens Photoelectrochemistry, 262–263, 290 hydrides, 12 Boron chalcogenides, 48–49 isotopes, 4 Brimstone (brennstein), 2 oxides, 12–14 oxoacids, 12–14 C physical and chemical properties, 10–16 Cadmium chalcogenides, 216–233 Chalconide ions, 11, 15–16, 84, 210 Cadmium selenide (CdSe) – electrodeposi- Chalcopyrites, 23, 42–45, 115–116, 251–256, tion, 216–233 282 photoelectrochemistry, 227 photoelectrochemistry, 252, 255 Cadmium sulfide (CdS) – electrodeposition, Charge density waves, 21, 34, 43 216–233 Chemical bath deposition, 27, 88, 106, 124, as a photocatalyst, 220 132–137, 287 photoelectrochemistry, 216, 227 Chemotronic components, 334 Cadmium telluride (CdTe) – electrodeposi- Chevrel phases, 24, 36, 38, 310–312, 316, tion, 216–233 319–320, 324, 330 355 356 Index Chromium chalcogenides, 35–37 G Citrate, 106, 114, 116–117 Gallium chalcogenides, 48–49 CO2 Photoreduction, 268–270 Galvanic displacement, 84–85, 112 Cobalt chalcogenides, 38–40 Gas diffusion electrode (GDE), 319–320 Colloidal systems, 180, 265–268 Germanium chalcogenides, 49–51 Colloid precipitation, 312 Gold chalcogenides, 41–44 Copper chalcogenides, 41–44 electrodeposition, 117 H Copper-Indium dichalcogenides, 115–119 Hafnium chalcogenides, 32–33 electrodeposition, 115–119 Heterogeneous photosynthesis, 263 photoelectrochemistry, 115 High power batteries, 330–335 Copper slime, 5–6 High-valence clusters, 18 Core/shell heterostructures, 268 2H-MoS2, 36, 327 Hydrogen evolution reaction (HER), 97, 116, D 264, 271, 282 Dilute magnetic semiconductors, 37 Directed growth, 187–188 I Dry processes, 27 Indium chalcogenides, 48–49 Dye-sensitized cells, 284, 286 electrodeposition, 48 Dye-sensitized heterojunctions, 285 photoelectrochemistry, 48 Intercalation (electrochemical), 21, 24, 36, E 322–324 Electrical switching, 25 Interfacial energetics, 214, 244 Electrocatalysts, 219–220, 265, 270, 274, Iodine/iodide redox couple, 210 309–310, 313–314, 316, 318–321 Ionic sensors, 25 Electrochemical atomic layer epitaxy Ion selective electrodes, 335–342 (ECALE), 137, 155, 157, 162–169, Iridium chalcogenides, 40–41 171, 173, 189, 194 Iron chalcogenides, 38–40 Electrochemical/chemical (E/C) synthesis, electrodeposition, 39 186, 196 Iron sulfides, 40, 42, 44, 120, Electrochemical step edge decoration (ESED), 248–251 196–198 photoelectrochemistry, 249–250 Electrode decomposition, 210–213, 217, 243, Isovalent alloys, 22, 46 259 Electrogenerated chemiluminescence, 341–342 L Electroless techniques, 84, 102 Lanthanoids, 18, 29–32 Energetic considerations for PEC, 213–216 Layered transition-metal dichalcogenides, Epitaxial films 238–248 growth, 154–155 electrodeposition, 240, 242 heteroepitaxy, 161 photoelectrochemistry, 238 homoepitaxy, 155 Lead chalcogenides, 49–51, on polycrystalline substrates, 159–160 124–128 on silicon, 160 electrodeposition, 125–128 Europium selenide electrodeposition, 132 photoelectrochemistry, 126 Liquid phase epitaxy (LPE), 155, 179 F Lithium batteries Fermi level pinning, 215, 225, 244 Li ion cell, 111, 325 Filtration membranes, 189–190 Li metal cell, 325 Fischer, W., 1–2 rechargeable, 324–326 Flat band potential measurement, 242, 246 thin film, 324–326 Flow batteries, 333 Lithium chalcogenides, 28–29 Fuel cells Lithium/sulfur batteries, 324–325 direct methanol (DMFC), 317 Localized growth, 187 PEM (proton exchange membrane), 310 Low-dimensional solids, 18 Index 357 M Photosensitization, 263, 287, 290 Magnesium chalcogenides, 29, 329–330 Platinum chalcogenides, 40–41 Manganese chalcogenides, 37–38 Polonium, 1, 4, 7–12, 19 Marcasite structure, 21, 39 Polychalcogenide electrolytes for PEC, 210, Mercury chalcogenides, 45–48, 106 228 oxidative growth (HgS), 90 Polychalcogenides Methanol crossover, 318 polyselenides, 15–16 Methanol tolerance, 310, 314–315, 319–320 polysulfides, 15–16 Mg ion batteries, 329 polytellurides, 15–16 Microbatteries, 326, 328–329 Porous anodic alumina (PAA), 190–193 Microgenerators, 326 Potassium chalcogenides, 28–29 Misfit layer chalcogenides, 24 Pourbaix diagrams, 58, 62–67, 85–86, 98, 113, Mismatch, crystallographic, 156, 167 118, 122, 124, 129, 259 Mismatch (misfit) tuning, 184 Pseudobinary systems, 23–24, 47, 106–109 Mixed valence, 30, 42, 49 P-type semiconductor photocathodes, 282 Molecular linkers (bifunctional), 289 Pulsed light assisted electrodeposition (PLAE), Molten salt (electrolytes), 68, 83, 330 180–181 Molybdenum chalcogenides, 35–37, 110–112 Pulse electrolysis, 85 electrodeposition, 110–111 Pyrite, 3, 20–21, 37, 39–42, 120, 248–251, photoelectrochemistry, 110 280, 286, 316–317, 335 Multilayers, 26, 124, 129, 155, 162, 169–172, 233–235, 337 Q Multiple band gap PEC, 235 Quantum dots (QD or Q-dot), 154, 159–160, 182, 186–189, 194, 258, 262, N 285–292, 340, 342 Nanofibrils, 189 Quasi-rest potential, 79, 100 Nanoribbons, 195–198 Quasi-stability, 24–25 Nanotubules, 189 Nanowires, 154, 191–198, 268 R Nickel chalcogenides, 38–40 Rare earth chalcogenides, 30–31, 131–132 Niobium chalcogenides, 33–35 Redox chemistry, 210, 267 Nucleation-growth, 117 Rhenium chalcogenides, 37–38, 119–120 O Rhodium chalcogenides, 40–41 Onium cations, 11 3R-MoS2,35 Osmium chalcogenides, 40, 321 Room temperature ionic liquid (RTIL), 84, 93, Oxygen 331 depolarized electrolysis (ODP), 320–321 Rubidium chalcogenides, 28–29 evolution reaction (OER), 271, 273–274 Ruthenium chalcogenides, 40–41 redox reactions, 69 reduction reaction (ORR), 309–321 S Scandium chalcogenides, 29–32 P Selenium Palladium chalcogenides, 21, 41 allotropy, 7–8, 28 Phlogiston, 2–3 aqueous standard-formal potentials, 59–62 Photocatalysis, 46, 263–283 as a cathode, 334–335 Photodeposition, 180 electrochemistry, 71 Photoelectrochemical cells (PEC), 15–16, 46, production, 133 85, 88, 94, 96–97, 102, 107–108, properties, 70–71 110, 207–212, 216, 218–224, selenium–water
Load more

Recommended publications
  • Facile Large Scale Solution Synthesis of Nanostructured Iron, Nickel and Cobalt Telluride and Possible Applications Sungbum Hong Iowa State University
    Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2017 Facile large scale solution synthesis of nanostructured iron, nickel and cobalt telluride and possible applications Sungbum Hong Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Chemical Engineering Commons, Materials Science and Engineering Commons, Mechanics of Materials Commons, and the Nanoscience and Nanotechnology Commons Recommended Citation Hong, Sungbum, "Facile large scale solution synthesis of nanostructured iron, nickel and cobalt telluride and possible applications" (2017). Graduate Theses and Dissertations. 15321. https://lib.dr.iastate.edu/etd/15321 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Facile large scale solution synthesis of nanostructured iron, nickel and cobalt telluride and possible applications by Sungbum Hong A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Chemical Engineering Program of Study Committee: Yue Wu, Major Professor Zengyi Shao Xinwei Wang The student author and the program of study committee are solely responsible for the content of this thesis. The Graduate College will ensure this thesis is globally accessible and will not permit alterations after a degree is conferred. Iowa State University Ames, Iowa 2017 Copyright © Sungbum Hong, 2017. All rights reserved. ii DEDICATION In memory of my Father Hong, Neung-pyo and Mother Kwon, Kyung-hee iii TABLE OF CONTENTS Page LIST OF FIGURES ..................................................................................................
    [Show full text]
  • Maximizing Thermoelectric Figures of Merit by Uniaxially Straining Indium Selenide † † † ‡ † Leonard W
    Article Cite This: J. Phys. Chem. C 2019, 123, 25437−25447 pubs.acs.org/JPCC Maximizing Thermoelectric Figures of Merit by Uniaxially Straining Indium Selenide † † † ‡ † Leonard W. Sprague Jr., Cancan Huang, Jeong-Pil Song,*, , and Brenda M. Rubenstein † Department of Chemistry, Brown University, Providence, Rhode Island 02912, United States ‡ Department of Physics, University of Arizona, Tucson, Arizona 85721, United States *S Supporting Information ABSTRACT: A majority of the electricity currently generated is regrettably lost as heat. Engineering high-efficiency thermo- electric materials which can convert waste heat back into electricity is therefore vital for reducing our energy fingerprint. ZT, a dimensionless figure of merit, acts as a beacon of promising thermoelectric materials. However, engineering materials with large ZT values is practically challenging, since maximizing ZT requires optimizing many interdepend- ent material properties. Motivated by recent studies on bulk indium selenide that suggest it may have favorable thermo- electric properties, here we present the thermoelectric properties of monolayer indium selenide in the presence of uniaxial strain using first-principles calculations conjoined with semiclassical Boltzmann transport theory. Our calculations indicate that conduction band convergence occurs at a compressive strain of −6% along the zigzag direction and results in an enhancement of ZT for p-type indium selenide at room temperature. Further enhancements occur at −7% as the valence bands similarly converge, reaching a maximum ZT value of 0.46, which is one of the largest monolayer InSe figures of merit recorded to date at room temperature. The importance of strain is directly reflected by the enhanced transport coefficients observed at strains nearing those which give rise to the band degeneracies we observe.
    [Show full text]
  • Mossbauer Spectroscopy of the Ag-Au Chalcogenides Petzite, Fischesserite
    Canadian Mineralogist Vol. 30, pp.327-333(1992) MoSSBAUERsPEcrRoscoPY oF THEAs-Au GHALGoGENIDES PETZITE,FISCHESSERITE AND UYTENBOGAARDTITE FRIEDRICH E. WAGNER Physik-DepartmentEIS, TechnischeUniversittit Milnchen, D-8046 Garching, Germany JERZY A. SAWICKI AECL Research,Cholk RiverLaboratories, Chalk River, Ontario KOJ IJO JOSEPHFRIEDL Physik-DepartmentEt|, TechnischeUniversitdt Milnchen, D-8M6 Garching,Germany JOSEPHA. MANDARINO Departmentof Mineralogy'Royal OntarioMuseum, Toronto, OntarioM5S 2C6 DONALD C. HARRIS ologicalSurvey of Canada,601 Booth Street,Ottawa, Ontario KIA OE8 ABSTRACT 1974u M<lssbauerspectra of the77.3 keV l rays o1 weremeasured aL4.2K for natural and synthetic-Ag3AuTe2 (petzite),synrh;ic Ag3AuSe2(fischesserite) and syntheticAg3AuS2 (uytenbogaardtite). All compoundsstudied exhibit iarge giadients in eleitric fi6ld at the gold nuclei, notably the laigest so far found in any gold mineral' The_isomer shiits ind electricquadrupole interactions, and in particular the similarity of theseparameters for Ag3AuS2with those of Au2S, suggestthat the gold in the Ag3AuX2 compoundsshould be consideredas monovalent. Keywords:refractory Au minerals, invisible Au, structurally bound Au, Ag-Au chalcogenides,petzite, fischesserite, uy-tenbogaardtite,l97Au Mcissbauerspectroscopy, isomer shift, electric quadrupole interaction, Hollinger mine, Timmins, Hemlo deposit, Ontario. SOMMAIRE leTAu Nous avons 6tudi6les spectresde Mrissbauerdes rayons ,y (77.3 keV) de I'isotope g6n€r€sd 4,2 K et mesur6s sur des 6chantillonsnaturels er synthetiquesde Ag3AuTe2Oetzite), et des 6chantillonssynthdtiques de AgsAuSe2 (fischesserite)et Ag3AuS2(uytenbogaardiite). Touiies compos6sfont preuve d'un gradient intensedans le champ ilectrique auiour diinuclEus des atomesd'or, et en fait le plus intensequi ait 6t6 d6couvertdans une espdceaurifbre. D'aprbs les d€placementsisombres et les interactions6lectriques quadrupolaires, et en particulier la similarit6 de ces parambtresdans le Ag3AuS2avec ceux de Au2S, I'or dans ces composdsAgAuX2 serait monovalent.
    [Show full text]
  • Revised Version the Crystal Structure of Uytenbogaardtite, Ag3aus2, And
    Title The crystal structure of uytenbogaardtite, Ag3AuS2, and its relationships with gold and silver sulfides-selenides Authors Bindi, L; Stanley, Christopher; Seryotkin, YV; Bakakin, VR; Pal'yanova, GA; Kokh, KA Date Submitted 2017-03-30 1 1 1237R – revised version 2 The crystal structure of uytenbogaardtite, Ag3AuS2, and its relationships 3 with gold and silver sulfides-selenides 4 1, 2 3,4 5 5 LUCA BINDI *, CHRISTOPHER J. STANLEY , YURII V. SERYOTKIN , VLADIMIR V. BAKAKIN , 3,4 3,4 6 GALINA A. PAL’YANOVA , KONSTANTIN A. KOKH 7 8 1Dipartimento di Scienze della Terra, Università di Firenze, Via G. La Pira 4, I-50121Firenze, Italy 9 2Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom 3 10 Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the Russian Academy of Sciences, pr. 11 Akademika Koptyuga, 3, Novosibirsk 630090, Russia 4 12 Novosibirsk State University, Pirogova str., 2, Novosibirsk 630090, Russia 5 13 Institute of Inorganic Chemistry, Siberian Branch of the RAS, prosp. Lavrentieva 3, 630090 Novosibirsk, Russia 14 15 * e-mail address: [email protected] 16 17 Abstract 18 The crystal structure of the mineral uytenbogaardtite, a rare silver-gold sulfide, was solved 19 using intensity data collected on a crystal from the type locality, the Comstock lode, Storey 20 County, Nevada (U.S.A.). The study revealed that the structure is trigonal, space group R 3 c, 3 21 with cell parameters: a = 13.6952(5), c = 17.0912(8) Å, and V = 2776.1(2) Å . The refinement 22 of an anisotropic model led to an R index of 0.0140 for 1099 independent reflections.
    [Show full text]
  • Structures of Bulk Hexagonal Post-Transition-Metal Chalcogenides from Dispersion-Corrected Density-Functional Theory
    Structures of bulk hexagonal post-transition-metal chalcogenides from dispersion-corrected density-functional theory S. J. Magorrian National Graphene Institute, University of Manchester, Booth Street East, Manchester M13 9PL, United Kingdom V. Z´olyomi Hartree Centre, STFC Daresbury Laboratory, Daresbury WA4 4AD, United Kingdom N. D. Drummond Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom (Dated: March 31, 2021) We use dispersion-corrected density-functional theory to determine the relative energies of com- peting polytypes of bulk layered hexagonal post-transition-metal chalcogenides, to search for the most stable structures of these potentially technologically important semiconductors. We show that there is some degree of consensus among dispersion-corrected exchange-correlation functionals re- garding the energetic orderings of polytypes, but we find that for each material there are multiple stacking orders with relative energies of less than 1 meV per monolayer unit cell, implying that stacking faults are expected to be abundant in all post-transition-metal chalcogenides. By fitting a simple model to all our energy data, we predict that the most stable hexagonal structure has P63/mmc space group in each case, but that the stacking order differs between GaS, GaSe, GaTe, and InS on the one hand and InSe and InTe on the other. At zero pressure, the relative energies obtained with different functionals disagree by around 1{5 meV per monolayer unit cell, which is not sufficient to identify the most stable structure unambiguously; however, multi-GPa pressures reduce the number of competing phases significantly. At higher pressures, an AB0-stacked structure of the most stable monolayer polytype is found to be the most stable bulk structure; this structure has not been reported in experiments thus far.
    [Show full text]
  • Colloidal and Deposited Products of the Interaction of Tetrachloroauric Acid with Hydrogen Selenide and Hydrogen Sulfide in Aqueous Solutions
    minerals Article Colloidal and Deposited Products of the Interaction of Tetrachloroauric Acid with Hydrogen Selenide and Hydrogen Sulfide in Aqueous Solutions Sergey Vorobyev 1, Maxim Likhatski 1, Alexander Romanchenko 1, Nikolai Maksimov 1, Sergey Zharkov 2,3, Alexander Krylov 2 and Yuri Mikhlin 1,* 1 Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk 660036, Russia; [email protected] (S.V.); [email protected] (M.L.); [email protected] (A.R.); [email protected] (N.M.) 2 Kirensky Institute of Physics of the Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk 660036, Russia; [email protected] (S.Z.); [email protected] (A.K.) 3 Electron Microscopy Laboratory, Siberian Federal University, Krasnoyarsk 660041, Russia * Correspondence: [email protected]; Tel.: +7-391-205-1928 Received: 11 October 2018; Accepted: 29 October 2018; Published: 31 October 2018 Abstract: The reactions of aqueous gold complexes with H2Se and H2S are important for transportation and deposition of gold in nature and for synthesis of AuSe-based nanomaterials but are scantily understood. Here, we explored species formed at different proportions of HAuCl4, H2Se and H2S at room temperature using in situ UV-vis spectroscopy, dynamic light scattering (DLS), zeta-potential measurement and ex situ Transmission electron microscopy (TEM), electron diffraction, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy. Metal gold colloids arose at the molar ratios H2Se(H2S)/HAuCl4 less than 2. At higher ratios, pre-nucleation “dense liquid” species having the hydrodynamic diameter of 20–40 nm, zeta potential −40 mV to −50 mV, and the indirect band gap less than 1 eV derived from the UV-vis spectra grow into submicrometer droplets over several hours, followed by fractional nucleation in the interior and + coagulation of disordered gold chalcogenide.
    [Show full text]
  • (Silver)-Telluride-(Selenide) Mineral Deposits
    Geological and Atmospheric Sciences Publications Geological and Atmospheric Sciences 12-2009 Understanding gold-(silver)-telluride-(selenide) mineral deposits Nigel J. Cook University of Adelaide Cristiana L. Ciobanu University of Adelaide Paul G. Spry Iowa State University, [email protected] Panagiotis Voudouris University of Athens participants of IGCP-486 Follow this and additional works at: https://lib.dr.iastate.edu/ge_at_pubs Part of the Geochemistry Commons, Geology Commons, and the Mineral Physics Commons The complete bibliographic information for this item can be found at https://lib.dr.iastate.edu/ ge_at_pubs/354. For information on how to cite this item, please visit http://lib.dr.iastate.edu/ howtocite.html. This Article is brought to you for free and open access by the Geological and Atmospheric Sciences at Iowa State University Digital Repository. It has been accepted for inclusion in Geological and Atmospheric Sciences Publications by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Understanding gold-(silver)-telluride-(selenide) mineral deposits Abstract Gold-(silver)-telluride (selenide) ores occur as epithermal orogenic and intrusion related deposits. Although Te and Se are chalcophile elements and share geochemical affinity withu, A formation of selenides and other elements Ag-Au require acidic or reducing environments. The thermodynamic stability conditions for Au and Agtellurides and native tellurium indicate an epithermal environment. Analysis of mineral paragenensis, textures and compositional variation in tellurides/selenides suggest petrogenetic processes involving interaction with fluids leading ot Au scavenging and entrapment in tellurides, changes in chemistry/rates of fluid infiltration and attaining equilibrium in a given assemblage.
    [Show full text]
  • Synthesis, Crystal Lattices and Some Electrical Properties of Indium Tellurides and Selenides
    MINERALOGICAL JOURNAL, VOL. 2, No. 2, pp. 63-77, JUNE, 1957 SYNTHESIS, CRYSTAL LATTICES AND SOME ELECTRICAL PROPERTIES OF INDIUM TELLURIDES AND SELENIDES SUEZO SUGAIKE Matsuda Research Laboratory, Tokyo Shibaura Electric Company ABSTRACT The crystals of indium tellurides and selenides, InTe, In2Te3, InTe3, InSe and In2Se3, have been synthesized by the double-furnace technique and their crystal lattices have been characterized by X-ray single crystal examinations. From the results of their electrical conductivity measurements it has been found that all of them are semiconductors, In2Te3 and InSe being poorly con ductive with some ionic character, InTe, InTe3 and In2Se3 having rather higher conductivities of order of 1-1•~102 (ƒ¶ cm)-1 at room temperature, and that In2Se3 shows a peculiar phase transition at 200•Ž. The lattice symmetries of these compounds have been compared with those of other III b metal chal cogenides. Introduction The chalcogenides of the III b metals in the periodic table have first been studied by W. Klemm and H.U. von Vogel8) in 1934. Although the majority of the compounds have been investigated crystallogra phically by H. Hahn2) 5) and by S. Schubert16), the data on InTe3 and InSe are missing yet. From the crystal-chemical view-point it will be interesting to see the similarity as well as difference of the properties of In2Se3 and In2Te3. The electronegativity differences ƒ¢x of indium decrease gradually from 1.2 against sulphur, to 1.1 against selenium and 0.8 against tellurium. These small values of ƒ¢x suggest, according to Pauling's theory14), their indium compounds to be valence crystals or semiconductors, with the smallness of ƒ¢x indicating the maximum amount (to the extent of 20%) of ionic character of the bonds.
    [Show full text]
  • Liquid Mediated Solid-State Metathesis Reactions
    Liquid-Mediated Solid-State Metathesis Reactions Daniel Morrison A thesis submitted to the University o f London in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Chemistry. University College, University of London London, United Kingdom September, 2001 ProQuest Number: U642239 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. uest. ProQuest U642239 Published by ProQuest LLC(2015). Copyright of the Dissertation is held by the Author. All rights reserved. This work is protected against unauthorized copying under Title 17, United States Code. Microform Edition © ProQuest LLC. ProQuest LLC 789 East Eisenhower Parkway P.O. Box 1346 Ann Arbor, Ml 48106-1346 L Abstract: A variety of metathetical reactions have been carried out in a liquid medium to explore the variety and depth of such reactions, A comparison with the similar solid-state reactions gives a clear indication of the differences and similarities between the two alternate routes. The fact that these reactions go to completion at all is interesting in that the conditions employed are very mild and do not employ any "forcing" means to induce reaction. Main group and transition metal sulphide, selenide and telluride and transition metal phosphide, arsenide and antimonide binary and ternary compounds were synthesised and characterised. An in-depth investigation into the synthesis and characterisation of the chalcopyrite CuInEj (E = S, Se, Te) family of ternary compounds has also been carried out with a specific focus on liquid variation, reaction duration and temperature and annealing treatment.
    [Show full text]
  • (12) Patent Application Publication (10) Pub. No.: US 2013/0264526 A1 Cao Et Al
    US 20130264526A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2013/0264526 A1 Cao et al. (43) Pub. Date: Oct. 10, 2013 (54) MOLECULAR PRECURSORS AND Related U.S. Application Data PROCESSES FOR PREPARING COPPER (60) Provisional application No. 61/419,355, filed on Dec. SN(SSSIFIDEASELENIDE 3, 2010, provisional application No. 61/419,351, filed on Dec. 3, 2010. (75) Inventors: Yanyan Cao, Wilmington, DE (US); John W. Catron, JR., Smyrna, DE (US); Lynda Kaye Johnson, Wilmington, DE PublicationDCOSSO Classificati (US); Meijun Lu, Hockessin, DE (US); (51) Int. Cl. Irina Malaj ovich, Swarthmore, PA HOIL 3L/0272 (2006.01) (US); Daniela Rodica Radu, Hockessin, (52) U.S. Cl DE (US) CPCAV e. we.................................. HOIL 31/0272 (2013.01) (73) Assignee: E I DUPONT DE NEMOURS AND USPC ....................................................... 252/.519.4 COMPANY, Wilmington, DE (US) 57 ABSTRACT (21) Appl. No.: 13/885,105 (57) This invention relates to molecular precursors and processes (22) PCT Filed: Dec. 1, 2011 for preparing coated Substrates and films of copper indium gallium sulfide/selenides (CIGS/Se). Such films are useful in (86). PCT No.: PCT/US2O11AO62847 the preparation of photovoltaic devices. This invention also S371 (c)(1), relates to processes for preparing coated Substrates and for (2), (4) Date: May 13, 2013 making photovoltaic devices. US 2013/0264526 A1 Oct. 10, 2013 MOLECULAR PRECURSORS AND salt-based precursors into photovoltaic devices has led to PROCESSES FOR PREPARING COPPER relatively low efficiencies, possibly due to chlorine- and oxy INDIUM GALLUMSULFIDEASELENIDE gen-based impurities. COATINGS AND FILMS 0007 CuInSea films have been formed from a solution of Cuand Innaphthenates, wherein the naphthenates are derived CROSS-REFERENCE TO RELATED from an acidic fraction of processed petroleum and are com APPLICATION posed of a mixture of organic acids.
    [Show full text]
  • 12.2% 130,000 155M Top 1% 154 5,300
    We are IntechOpen, the world’s leading publisher of Open Access books Built by scientists, for scientists 5,300 130,000 155M Open access books available International authors and editors Downloads Our authors are among the 154 TOP 1% 12.2% Countries delivered to most cited scientists Contributors from top 500 universities Selection of our books indexed in the Book Citation Index in Web of Science™ Core Collection (BKCI) Interested in publishing with us? Contact [email protected] Numbers displayed above are based on latest data collected. For more information visit www.intechopen.com Chapter Indium Chalcogenide Nanomaterials in the Forefront of Recent Technological Advancements Siphamandla C. Masikane and Neerish Revaprasadu Abstract In the last decade, there has been an increasing trend in the exploitation of indium chalcogenides in various applications which range from water splitting reactions in renewable energy to degradation of dyes in environmental rehabilita- tion. This trend is attributed to the interesting and unique properties of indium chalcogenide nanomaterials which can be easily tuned through a common approach: particle size, shape and morphology engineering. In this chapter, we outline the preferred attributes of indium chalcogenide nanomaterials which are deemed suitable for recent applications. Furthermore, we explore recent reaction protocols which have been reported to yield good quality indium chalcogenide nanomaterials of multinary configurations, e.g. binary and ternary compounds, among others. Keywords: sulfide, selenide, telluride, multinary, applications 1. Introduction Over the years, there has been an increasing demand on state-of-art solutions to solve real world problems such as the energy crises and efficient early-detection protocols in biomedical services.
    [Show full text]
  • Hydrothermal Studies on Mineral Replacement Reaction in the Gold-Silver-Tellurium and Copper-Iron-Sulphur Systems
    HYDROTHERMAL STUDIES ON MINERAL REPLACEMENT REACTIONS IN THE GOLD-SILVER- TELLURIUM AND COPPER-IRON-SULFR SYSTEMS JING ZHAO !" !#$% &'"( "%" !) " *+$# , ) " )#" TABLE OF CONTENTS ABSTRACT .............................................................................................................................. v DECLARATION .................................................................................................................. vii ACKNOWLEDGEMENTS .................................................................................................. ix CHAPTER 1INTRODUCTION .......................................................................................... 1 1.1 Mineral replacement reaction and coupled dissolution reprecipitation mechanism ......... 4 1.1.1 Pseudomorphism .................................................................................................................. 8 1.1.2 Porosity and fine cracks .................................................................................................... 10 1.2 Mineral replacement reactions among gold-(silver)-tellurides ....................................... 13 1.3 Mineral replacement reactions among copper iron sulfides ........................................... 17 1.4 Research objects .............................................................................................................. 23 1.5 References ....................................................................................................................... 24 CHAPTER
    [Show full text]