Anr1006002.Pdf

Total Page:16

File Type:pdf, Size:1020Kb

Anr1006002.Pdf Advances in Nano Research, Vol. 10, No. 6 (2021) 517-529 DOI: https://doi.org/10.12989/anr.2021.10.6.517 517 The economic and management use of rhododendron petals in potas-sium-ion nano batteries anode via efficient computer simulation Wensheng Dai1, Yousef Zand2, Alireza Sadighi Agdas3, Abdellatif Selmi4,5, Angel Roco-Videla6,7, Karzan Wakil8,9 and Alibek Issakhov10,11 1Financial School, China Financial Policy Research Center, International Monetary Institute, Renmin University of China, Beijing 100872, China 2Department of Civil Engineering,Tabriz Branch, Islamic Azad University, Tabriz, Iran 3Ghateh Gostar Novin Company, Tabriz, Iran 4Department of Civil Engineering, College of Engineering, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia 5Ecole Nationale d’Ingénieurs deTunis (ENIT), Civil Engineering Laboratory, B.P. 37, Le belvédère1002, Tunis, Tunisia 6Programa Magister en ciencias químico-biológicas, Facultad de Ciencias de la Salud, Universidad Bernardo O´Higgins, Santiago-Chile 7Departamento de ingeniería Civil, Facultad de Ingeniería, Universidad Católica de la Santísima Concepción, Concepción-Chile 8Department of Computer, College of Science, University of Halabja, Halabja 46018, Kurdistan Region, Iraq 9Research Center, Sulaimani Polytechnic University, Sulaimani 46001, Kurdistan Region, Iraq 10Al-Farabi Kazakh National University, Almaty, Kazakhstan 11Kazakh-British Technical University, Almaty, Kazakhstan (Received January 21, 2020, Revised February 13, 2021, Accepted February 19, 2021) Abstract. Nano batteries are manufactured batteries which use nanoscale technology, small particles measuring less than 100 nanometers or 10-7 meters. In addition, because of plentiful potassium supplies and less cost, potassium-ion batteries (PIBs) are taken as possible substitutes for lithium-ion batteries for massive energy storing systems. Our modern lifestyle could be totally different without rechargeable batteries. Regarding their economic and management usage, these batteries are applied in electric and hybrid vehicles, devices, and renewable power generation systems. Accordingly, regarding the huge K ion radius, it is a difficult process for identifying relevant materials with excellent cycling stability and capacity. At present, the production of suitable anode materials with high specific capacities, long cycle life and low costs for PIBs remains a major challenge. Also, the continuing improvement in defining future electors, the manufacture of PIBs has been complicated by multiple challenges, namely low reversible performance, insufficient cycling stability and poor energy density, all of which have created important doubts for the effective implications of PIBs. Nano-particles have shown various advantages for enhanced energy and power density, cyclability and safety when it comes to designing and producing electrode materials via efficient computer simulation. In combination with large volume expansion, slow reaction kinetics, and low electrical conductivity the main cause for the degradation of SnO2 reaction reversibility and power decay observed are not as obvious as those of Lithium-ion batteries (LIBs) as anodes of sodium-ion batteries (SIBs), and potassium-ion batteries (KIBs). Keywords: biomass; hard carbon; potassium-ion batteries; nitrogen-doped; energy storage mechanism 1. Introduction battery community must take into account. For especial purposes, namely micro-electromechanical systems and In 2018, the global demand for energy storage was chips, nano-scale batteries are used extensively (Chen et al. estimated at $72 billion and is projected to rise to $165 2018, Lei et al. 2020). Regarding the use of computer billion before 2025 (Dyatlov et al. 2020). The global battery simulation, nano battery incorporated in device indicates market has been estimated to be progressed by 6.63% that power sources are also important in the process of CAGR during the expected years of 2019-27 (Baumann et miniaturization. The key characteristics of Nano batteries al. 2021). In addition, the energy crisis on Earth is with dimensions of 1 cm2 (Lowy et al. 2008) are their disrupting the growth and creating difficulties for human energy and power densities. When these tiny devices are survival (Mehtab et al. 2019, Yang et al. 2020a, Yasin et al. integrated in parallel, then thousands of Nano batteries 2020). The need for physically small batteries is growing could be placed on 0.5-mm-thick substrate which can have rapidly with the growth in need for portable electronics (Shi a charge of up to 10-mAh cm2 power per footprint. These et al. 2020, Fujita et al. 2021, Zhang et al. 2021). Thus, the batteries were evaluated for a significant number of charge- miniaturization of the battery is a critical task that the discharge rounds, without compromising their stability and capacitance. In addition, this design provides a massive electrical power output that eliminates the risk of Corresponding author, Professor, Ph.D., flammability, a big source of malfunctioning in laptop and E-mail: [email protected] mobile batteries. Novel battery technologies in nano world Copyright © 2021 Techno-Press, Ltd. http://www.techno-press.org/?journal=journal=anr&subpage=5 ISSN: 2287-237X (Print), 2287-2388 (Online) 518 Wensheng Dai, Yousef Zand, Alireza Sadighi A, Abdellatif Selmi, Angel Roco-Videla,Karzan Wakil and Alibek Issakhov allow Nano battery systems to stay operational for a studies and numerical analysis, Artificial intelligence (AI) minimum duration of 15 years (Ni et al. 2019a, b, Ning et as one of the accurate, fast and cost-effective techniques al. 2020). The advancement of energy storage systems by have been deployed extensively in different applications waste management focuses on advanced energy technology. (Safa et al. 2020, Shariati et al. 2020d, Yazdani et al. 2020). The lightweight N-S doped carbon nanofibers as hybrid Machine learning (ML) can be used as a subset of AI to condensers would be promoted by it. The satisfactory optimize and predict the performance of battery systems electrochemical results encourage the principle of waste (Mohammadhassani et al. 2013, Safa et al. 2016, Toghroli management in order to scalable energy storage device et al. 2016, Mansouri et al. 2019). ML also can provide efficiency (Zuo et al. 2015, 2017, Zhang et al. 2020a). The self-learning from data and then without human interference Nano battery can apply both to Nano sized batteries, as well apply that learning. In fact, big data techniques and ML as to the use of macroscopic battery nanotechnology to methods have addressed the different problems of improve its efficiency and lifespan (Rouhanifar et al. 2019, modelling the relationship between complex physical Hu et al. 2020, Yang et al. 2020b). Nano battery can deliver characteristics and material properties (Mohammadhassani many benefits, including fast charging, higher power et al. 2014b, Chahnasir et al. 2018, Sedghi et al. 2018, density, and prolonged shelf life over the conventional Katebi et al. 2019). Moreover, with the ongoing progress of battery (Guo et al. 2020, Wang et al. 2020, Yan et al. 2021). theories and methods, the subjects in which ML can be For a primary (non-rechargeable) battery, it is possible to employed will be more widespread and have a growing use nanotechnology to obtain a high-performance primary influence on the effectiveness of the investigations (Shariati battery. Iost et al. (2016) stated using monolayer graphene et al. 2019d, e, Trung et al. 2019a, Huang et al. 2021). to provide an initial battery on a chip. For several hours, Clean and green technology, for example solar, wind, tide, their batteries produced a steady voltage (1.1 V) with a high and geothermal has a significant role in recognizing the 15 μAh power. Nano-MnO2 was utilized as a cathode improvement of human society because of the reduction of material (Srither et al. 2013) to improve the discharge environmental destruction, and fossil fuels, thereby power and energy density of magnesium primary batteries. becoming the fastest-growing renewable energy alternatives Srither et al. (2014) published similar findings in the (Shariati 2020, Shariati et al. 2020c, f, Rajaei et al. 2021). primary cell of Zn/MnO2 for the improvement of discharge These renewable energies, though, are also essentially power retention and shelf life. In the high-power alkaline intermittent, leading in a tension between the time and Zn-MnO2 batteries (Cheng et al. 2005), γ-MnO2 nanowires/ space dimensions of energy harvesting and consumption nanotubes could be used. The multi-walled carbon nanotube (Naghipour et al. 2020a, Shariati et al. 2020a, g). To this (MWCNT)-templated cobalt phthalocyanine (CoPc) can end, an efficient resolution for storing and distributing these increase its discharge energy as a catalyst for the Li/SOCl2 transient energies is known to be the Energy Storage battery (Xu et al. 2010). Wei et al. (2017) manufactured a System (ESS) (Shariati 2008, Safa et al. 2019, Naghipour et hybrid nanomaterial (acetylene black nanoparticles/ al. 2020b, Shariati et al. 2020b). LIBs are the prevalent ESS graphene nano sheets) as a high-discharge Li/SOCl2 battery technology at present and, due to their ease, high energy cathode material (1706 mAh/g capacity at 5 mA/cm 2 densities and shortage of memory feature have become current density). Sun et al. (2016) developed an electrode important in our lives (Shariati et al. 2019a, 2020e, Afshar on the basis of nano-V, Ti-doped MnO2 for high-rate et al.
Recommended publications
  • A Highly Controllable Electrochemical Anodization Process to Fabricate
    Lin et al. Nanoscale Research Letters (2015) 10:495 DOI 10.1186/s11671-015-1202-y NANO EXPRESS Open Access A Highly Controllable Electrochemical Anodization Process to Fabricate Porous Anodic Aluminum Oxide Membranes Yuanjing Lin1, Qingfeng Lin1, Xue Liu1, Yuan Gao1, Jin He2, Wenli Wang3,4* and Zhiyong Fan1* Abstract Due to the broad applications of porous alumina nanostructures, research on fabrication of anodized aluminum oxide (AAO) with nanoporous structure has triggered enormous attention. While fabrication of highly ordered nanoporous AAO with tunable geometric features has been widely reported, it is known that its growth rate can be easily affected by the fluctuation of process conditions such as acid concentration and temperature during electrochemical anodization process. To fabricate AAO with various geometric parameters, particularly, to realize precise control over pore depth for scientific research and commercial applications, a controllable fabrication process is essential. In this work, we revealed a linear correlation between the integrated electric charge flow throughout the circuit in the stable anodization process and the growth thickness of AAO membranes. With this understanding, we developed a facile approach to precisely control the growth process of the membranes. It was found that this approach is applicable in a large voltage range, and it may be extended to anodization of other metal materials such as Ti as well. Keywords: Anodic aluminum oxide, Nanoporous structure, Integrated charge density, Controllable electrochemical anodization Background aluminum oxide (AAO), have wide nanoengineering ap- Metal anodization has been broadly used in industry as plications that have attracted enormous attention. For a surface treatment technique to render materials with example, AAO membranes have been used as templates resistance against uncontrolled oxidation, abrasion, and to directly assemble semiconductor nanowires and corrosion.
    [Show full text]
  • Design and Fabrication of High Power Microbatteries and High Specific Strength Cellular Solids from Bicontinuous Microporous Hierarchical Materials
    DESIGN AND FABRICATION OF HIGH POWER MICROBATTERIES AND HIGH SPECIFIC STRENGTH CELLULAR SOLIDS FROM BICONTINUOUS MICROPOROUS HIERARCHICAL MATERIALS BY JAMES HENRY PIKUL DISSERTATION Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Mechanical Engineering in the Graduate College of the University of Illinois at Urbana-Champaign, 2015 Urbana, Illinois Doctoral Committee: Professor William King, Chair and Director of Research Professor Paul Braun Professor Placid Ferreira Professor John Rogers ABSTRACT An emerging paradigm in engineering design is the development of materials by constructing hierarchical assemblies of simple building blocks into complex architectures that address physics at multiple length scales. These hierarchical materials are increasingly important for the next generation of mechanical, electrical, chemical, and biological technologies. However, fabricating hierarchical materials with nm control over multiple chemistries in a scalable fashion is a challenge yet to be overcome. This dissertation reports the design and fabrication of hierarchical microbattery electrodes that demonstrate unprecedented power density as well as hierarchical cellular solids with controllable modulus and high specific strength. Self-assembly, electrodeposition and microfabrication enable the fabrication of microbatteries with hierarchical electrodes. The three-dimensional bicontinuous interdigitated microelectrode architecture improves power performance by simultaneously reducing ion and electron transport distances through the anode, cathode, and electrolyte. The microbattery power densities are up to 7.4 mW cm-2 m-1, which equals or exceeds that of the best supercapacitors and which is 2000 times higher than that of other microbatteries. A one dimensional electrochemical model of the microbatteries enables the study of physical processes that limit power performance.
    [Show full text]
  • 2018 NEES Brochure
    FROM NANO TO MESO Eight Years of the DOE Energy Frontier Research Center ARCHITECTURES Storing electrical energy is a central withdrawal. Storage saves solar FROM NANO TO MESO requirement to balance the energy or wind energy when available in AND BEYOND economy, providing compatibility abundance, and delivers it back SCIENCE TO ENABLE A NEXT GENERATION OF ENERGY STORAGE between where and when sources after sundown or when winds are Harvesting, holding, and delivering energy all rely on energy storage science. Batteries and related storage of energy are available and where calm. Batteries let us hold energy devices depend on both ions and electrons to move through materials and interfaces, providing challenges for materials science and chemistry in unparalleled ways. NEES seeks to understand these phenomena on a and when they are needed by users. in electric cars or cellphones and firm scientific footing and to develop new concepts to fuel a next generation of energy storage. Our collaboration Batteries and related energy storage use it when desired. Ideally, storage exploits a significant portfolio of experimental, theoretical, and intellectual resources. NEES achievements to date suggest boundless opportunities to create revolutionary designs for the batteries of the future. devices thus serve as an energy devices hold huge amounts of “bank,” receiving and holding energy energy and yet can deliver that that is deposited from various energy at high power. In a more sources, and delivering it to various subtle context, storage facilitates
    [Show full text]
  • AUTM Partnering Forum
    AUTM Partnering Forum Smart Power and Energy Storage Solutions Global Technology Portal Visit the AUTM Global Technology Portal (GTP) for more information on university technologies for licensing worldwide. Technologies represented: Updated on 10/25/16 Energy Storage Systems (ESS) Technology Title Organization Light-Weight, Edge Collected Fuel Cell Assembly (Enables production of thin, light-weight and flexible fuel cell stack that can be microfabricated in ambient conditions with common microfabrication techniques; US Patent 8,247,135) Case Western Reserve University Novel Titanium Electrowinning Process Using Specialized Segmented Diaphragms Solid-State Nano-Integrated 3D-Battery from Block Copolymer Self-Assembly Planar Membraneless Microchannel Fuel Cell Symmetric Organic Electrolytes for Redox Flow Batteries Solar Flow Battery Cornell University Metal-CO2 Batteries Stable Room-Temperature Sodium-Sulfur Battery Active Energy Storage RF Thermoelectric Generator for RF Energy Harvesting Sodium Thermo-Electro-Chemical (Na-TEC) Generator Piezoelectric energy harvesting from hydraulic pressure fluctuations HydroFold -High Efficiency-Capacity-Density Foldable Hydrogen Storage Media Georgia Tech Research Corporation Sorption-Enhanced CHAMP Reactors for Distributed Fuel Processing and Power Generation with Integrated CO2 Capture Case-Encapsulated Triboelectric Nanogenerator for Harvesting Energy from Reciprocating Sliding Motion Nanowire Piezo-Electric Generator 1 Smart Power and Energy Storage Solutions | AUTM Partnering Forum Nanogenerators
    [Show full text]
  • Pacific Rim Meeting on Electrochemical and Solid-State
    Pacific Rim Meeting on Electrochemical and Solid-State Science 2016 Meeting Abstracts 2016-02 Honolulu, Hawaii, USA 2 - 7 October 2016 Table of Contents and Index ISBN: 978-1-5108-3342-5 6/6 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Some papers in this book may refer to web based images from the electronic version of these proceedings that are not available in this print edition. To view images go to: http://ma.ecsdl.org/site/archive/MA2016-02.xhtml Copyright© (2016) by The Electrochemical Society All rights reserved. Printed by Curran Associates, Inc. (2017) For permission requests, please contact The Electrochemical Society at the address below. The Electrochemical Society 65 South Main Street, Building D Pennington, New Jersey 08534-2839 USA Phone: 1.609.737.1902 Fax: 1.609.737.2743 [email protected] Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2633 Email: [email protected] Web: www.proceedings.com Table of Contents A01-Batteries and Energy Technology Joint General Session 1Evolution of Fe-Antisite Defects in Standard Hydrothermal LiFePO4 Synthesis and Their Accelerated Removal with Ca2+ Andrea Paolella, George P. Demopoulos, Karim Zaghib 2Layered and Tunneled Manganese Oxides As Battery Cathode Materials - the Role of Electrochemically Active and Inert Metal Cations Amy
    [Show full text]
  • Nanopore Battery
    TECHNOLOGY Nanopore Battery OVERVIEW Background: For advances in electrical energy storage, nanostructuring of electrode materials using nanowire or nanotube configurations holds promise for higher available energy at any given power density, due to larger available surface area and shorter ion transport time of the electrode materials; and improved mechanical flexibility and durability as ions are incorporated and released during charge/discharge cycling. Power and energy metrics would be further improved if anode and cathode nanostructures in a battery or supercapacitor could be brought into close proximity in a full cell. Innovation: Researchers at the University of Maryland have developed a Nanopore Battery comprised of nanotubular electrodes and electrolyte confined within an anodic aluminum oxide nanopore as an ?all-in-one? nanopore device. The all-in-one nanopore battery exhibits striking performance that conveys important messages about nanostructure design for high power electrochemical energy storage. In both half and full cells, capacity retention is excellent (~50% at 150C of 1C rate), providing 82mAh/g at 150C (24 sec charge/discharge time). Stability with charge/discharge cycling is also remarkable, with ~90% of initial capacity retained after 1000 cycles for rates 5-25C. Atomic layer deposition into nanopores enables the nanotubular electrode design, thin storage layers and integrated current collecting layers, facilitating fast ion and electron transportfor high power at high energy. APPLICATIONS Batteries with high power
    [Show full text]
  • Tio2 Nanotubes with Different Spacing, Fe2o3 Decoration and Their Evaluation for Li-Ion Battery Application
    TiO2 nanotubes with different spacing, Fe2O3 decoration and their evaluation for Li-ion battery application Selda Ozkan1†, Gihoon Cha1†, Anca Mazare1 and Patrik Schmuki1,2 1 Department of Materials Science and Engineering, WW4-LKO, University of Erlangen- Nuremberg, Martensstrasse 7, D-91058 Erlangen, Germany 2 Chemistry Department, Faculty of Sciences, King Abdulaziz University, 80203 Jeddah, Saudi Arabia Kingdom *Corresponding author: Prof. Dr. Patrik Schmuki: Tel.: +49-9131-852-7575, Fax: +49-9131-852-7582, Email:[email protected] †These authors equally contributed to this work. Link to the published article: https://iopscience.iop.org/article/10.1088/1361-6528/aab062/meta 1 In present work, we report on the use of organized TiO2 nanotube layers with a regular intertube spacing for the growth of highly defined α-Fe2O3 nano-needles in the interspace. These α-Fe2O3 decorated TiO2 NTs are then explored for Li-ion battery applications and compared to classic close-packed NTs that are both decorated with various amounts of nanoscale α-Fe2O3. We show that nanotubes with tube-to-tube spacing allow a uniform decoration of individual nanotubes with regular arrangements of hematite nano-needles. The tube spacing also facilitates the electrolyte penetration as well as yields better ion diffusion. While bare close-packed NTs show higher capacitance, e.g., 71 µAh cm-2 than bare spaced NTs with e.g., 54 µAh cm-2, the hierarchical decoration with secondary metal oxide, α-Fe2O3, remarkably enhances the Li-ion battery performance. Namely, spaced nanotubes with α-Fe2O3 decoration have an areal capacitance of 477 µAh cm-2, i.e., show up to nearly ~8 times higher capacitance.
    [Show full text]
  • Materials Chemistry a Accepted Manuscript
    Journal of Materials Chemistry A Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal’s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains. www.rsc.org/materialsA Page 1 of 9 JournalPlease of do Materials not adjust Chemistry margins A Journal Name ARTICLE Atomically Precise Growth of Sodium Titanates as Anode Materials for High-Rate and Ultralong Cycle-Life Sodium-Ion Received 00th January 20xx, Batteries Accepted 00th January 20xx a,b a a a a a Manuscript DOI: 10.1039/x0xx00000x Jian Liu, Mohammad N. Banis, Biwei Xiao, Qian Sun, Andrew Lushington, Ruying Li, Jinghua Guo, b Tsun-Kong Sham c and Xueliang Sun a,* www.rsc.org/ Sodium-ion batteries (SIBs) have received increasing attention for applications in large-scale enegy storage systems due to their low cost, high energy density, and high abundance of sodium element.
    [Show full text]
  • Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges
    batteries Review Pre-Lithiation Strategies for Rechargeable Energy Storage Technologies: Concepts, Promises and Challenges Florian Holtstiege 1, Peer Bärmann 1, Roman Nölle 1, Martin Winter 1,2,* and Tobias Placke 1,* ID 1 University of Münster, MEET Battery Research Center, Institute of Physical Chemistry, Corrensstraße 46, 48149 Münster, Germany; fl[email protected] (F.H.); [email protected] (P.B.); [email protected] (R.N.) 2 Helmholtz Institute Münster, IEK-12, Forschungszentrum Jülich, Corrensstraße 46, 48149 Münster, Germany * Correspondence: [email protected] or [email protected] (M.W.); [email protected] (T.P.); Tel.: +49-251-83-36826 (M.W.); +49-251-83-36031 (T.P.) Received: 23 December 2017; Accepted: 17 January 2018; Published: 23 January 2018 Abstract: In order to meet the sophisticated demands for large-scale applications such as electro-mobility, next generation energy storage technologies require advanced electrode active materials with enhanced gravimetric and volumetric capacities to achieve increased gravimetric energy and volumetric energy densities. However, most of these materials suffer from high 1st cycle active lithium losses, e.g., caused by solid electrolyte interphase (SEI) formation, which in turn hinder their broad commercial use so far. In general, the loss of active lithium permanently decreases the available energy by the consumption of lithium from the positive electrode material. Pre-lithiation is considered as a highly appealing technique to compensate for active lithium losses and, therefore, to increase the practical energy density. Various pre-lithiation techniques have been evaluated so far, including electrochemical and chemical pre-lithiation, pre-lithiation with the help of additives or the pre-lithiation by direct contact to lithium metal.
    [Show full text]
  • Diagnostics and Degradation Investigations of Li-Ion Battery Electrodes Using Single Nanowire Electrochemical Cells
    Virginia Commonwealth University VCU Scholars Compass Theses and Dissertations Graduate School 2016 Diagnostics and Degradation Investigations of Li-Ion Battery Electrodes using Single Nanowire Electrochemical Cells Naveen kumar reddy Palapati Naveen kumar reddy Palapati Virginia Commonwealth University Follow this and additional works at: https://scholarscompass.vcu.edu/etd Part of the Nanoscience and Nanotechnology Commons, Other Engineering Commons, and the Other Materials Science and Engineering Commons © The Author Downloaded from https://scholarscompass.vcu.edu/etd/4475 This Dissertation is brought to you for free and open access by the Graduate School at VCU Scholars Compass. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of VCU Scholars Compass. For more information, please contact [email protected]. Copyright 2016 Naveen kumar reddy Palapati ©All Rights Reserved Diagnostics and Degradation Investigations of Li-Ion Battery Electrodes using Single Nanowire Electrochemical Cells A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at Virginia Commonwealth University By NAVEEN KUMAR REDDY PALAPATI Bachelor in Mechanical Engineering – GRIET/JNTU, Hyderabad, India, 2008 Director: ARUNKUMAR SUBRAMANIAN, Ph.D. Assistant Professor Department of Mechanical and Nuclear Engineering School of Engineering Virginia Commonwealth University Virginia Commonwealth University Richmond, Virginia June 2016 Dedication This dissertation is gratefully dedicated To my parents, Sister, Beloved grandparents, And all of my friends, Without whom none of my success would be possible. I hope that this achievement will bring eternal peace to my late grandfather Palapati Subba Reddy. i Candidate’s Certificate I hereby declare that the work presented in this dissertation is original and was performed by me in the Laboratory of Integrated Nanosystems under the supervision of Dr.
    [Show full text]
  • Next Generation Electrical Energy Storage
    Basic Research Needs for Next Generation Electrical Energy Storage Report of the Basic Research Needs Workshop on Next Generation Electrical Energy Storage March 27 – 29, 2017 The cover image is a schematic representation of a lithium metal anode (bottom) and solid electrolyte (top) at the atomic scale. Scanning transmission electron microscopy revealed both the structure and chemistry of the interface region (Li7−3xAlxLa3Zr2O12) between the anode and electrolyte—a key discovery if this promising next generation battery electrolyte (Ma, C.; Cheng, Y.; Yin, K.; Luo, J.; Sharafi, A.; Sakamoto, J.; Chi, M., Nano Letters, 2016, 16, 7030-7036, DOI: 10.1021/acs.nanolett.6b03223) is ever to become a commercial reality. Image courtesy of Oak Ridge National Laboratory. NEXT GENERATION ELECTRICAL ENERGY STORAGE Basic Research Needs for Next Generation Electrical Energy Storage REPORT OF THE OFFICE OF BASIC ENERGY SCIENCES WORKSHOP ON ENERGY STORAGE CHAIR: CO-CHAIRS: George Crabtree, University of Illinois-Chicago/ Gary Rubloff, University of Maryland Argonne National Laboratory Esther Takeuchi, Stony Brook University/ Brookhaven National Laboratory PANEL LEADS (WITH PRD LEAD): Pathways to Simultaneous High Energy Discovery, Synthesis, and Design Strategies and Power for Materials, Structures, and Architectures Paul Braun (1), University of Illinois at Urbana- Perla Balbuena (1), Texas A&M University Champaign Amy Prieto (1), Colorado State University Jun Liu (4), Pacific Northwest National Laboratory Solid-State and Semi-Solid Electrochemical Structure,
    [Show full text]
  • Effect of Negative Current on the Microstructure of Oxide Coatings Prepared by Hybrid Pulse Anodization
    metals Article Effect of Negative Current on the Microstructure of Oxide Coatings Prepared by Hybrid Pulse Anodization Shuo Huang 1, Bailing Jiang 1,2,*, Cancan Liu 1,*, Qingying Shao 1 and Hongtao Li 1 1 College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China; [email protected] (S.H.); [email protected] (Q.S.); [email protected] (H.L.) 2 College of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, China * Correspondence: [email protected] (B.J.); [email protected] (C.L.); Tel.: +86-136-6924-7719 (B.J.); +86-188-5160-4703 (C.L.) Received: 27 November 2018; Accepted: 22 December 2018; Published: 27 December 2018 Abstract: The oxide coatings were prepared on 6061 Al alloy at different negative current densities in oxalic acid using the hybrid pulse anodization (HPA) method at room temperature. The variation curves of positive and negative voltages with anodization time were recorded. The nanopore diameters and distribution regularities in HPA coatings were analyzed with the Image-Pro Plus software based on field-emission scanning electron microscope (FE-SEM) images. The results showed that the negative current could reduce the growth rate of HPA coatings, and thus led to a small thickness of the coatings within the same anodization time. Besides, appropriate negative current densities resulted in the better distribution uniformity of nanopores, but the excessive negative current densities tended to cause inferior nanopore arrangement. These were attributed to the existence of the negative current, causing H+ and O2− to move in opposite directions, so that a large number of H+ concentrated on the surface of the HPA coatings, resulting in the accelerated dissolution of the coatings.
    [Show full text]