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Memoria Congreso Xxvi Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales SMCTSM XXVI Congreso Nacional 25 al 29 de Septiembre Puebla, Pue, México 2006 Libro de Resúmenes h t t p : / / w w w . s m c s y v . o r g . m x / Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales (SMCTSM) XXVI Congreso Nacional del 25 al 29 de Septiembre Puebla, Pue, México 2006 h t t p : / / w w w . s m c s y v . o r g . m x / Comité Organizador Organizing Committee Wilfrido Calleja Arriaga INAOE Presidente [email protected] Jesús Carrillo López CIDS- ICUAP Secretario [email protected] José Martín Yáñez CINVESTAV-Qro. Tesorero [email protected] Enrique Camps Carvajal ININ Vocal de Congresos [email protected] Víctor Hugo Méndez IICO-UASLP Vocal de Cursos [email protected] Gerardo Contreras Puente ESFM-IPN Vocal de publicaciones [email protected] Alberto Herrera Gómez Presidente pasado CINVESTAV-Querétaro [email protected] Comité Organizador Local Local Organizing Committee Nicolás Atenco (Presidente) UABJO Sara Carriillo Uribe UABJO Rubén Doroteo Castillejos UABJO Dante Arias Torres UABJO José Roberto Nicolás Carlock UABJO Wilfrido Calleja Arriaga INAOE Jesús Carrillo López CIDS-BUAP Aurelio Horacio Heredia UAPEP Salvador Alcántara Iniesta CIDS-BUAP Francisco Renero Carrillo INAOE S M C T S M Mensaje XXVI Congreso Nacional A nombre del Comité de Organización Local de la ciudad de Puebla y de la Mesa Directiva de la SMCTSM, damos la bienvenida a todos los participantes y les deseamos una semana de trabajo fructífero en esta bella, colonial y hospitalaria ciudad de Puebla. El esfuerzo conjunto coadyuva en la organización de nuestros Congresos Nacionales. En este propósito, nuestra organización prosigue con el objetivo de difundir la Ciencia y la Tecnología hacia las instituciones de Educación Superior y hacia la Sociedad Civil. A continuación se describen brevemente las actividades principales correspondiente al XXVI Congreso nacional. En el presente año recibimos mas de 200 contribuciones, que en gran parte son resultado del trabajo de promoción realizado por los organizadores de los diferentes simposios, a ellos nuestro reconocimiento. · Mauricio López · Javier de la Hidalga · Sergio A. Tomás CENAM INAOE CINVESTAV DF · José Mireles Jr. · Facundo Ruiz · Jesús Bernal A. UACJ FC UASLP U. de Guanajuato · Miguel Meléndez · Victor Hugo Méndez · Luis Alfonso García C. CINVESTAV DF IICO CIQA · Yuri Gurevich · Juan Luis Peña Chapa · Sergio López López CINVESTAV DF CINVESTAV Mérida CENAM · Stephen Muhl · Juan Muñoz Saldaña · Miguel A. Camacho IIM UNAM CINVESTAV-Qro. UAEM · Jesús Arriaga · Francisco Renero · Miguel García IF BUAP INAOE Grupo Quark Este año se presenta un nuevo Simposio de CerámicosAvanzados y Multifuncionales, el cual es resultado de una política tendiente a ampliar nuestras fronteras y a establecer foros multidisciplinarios de discusión de la Ciencia y la Tecnología de nuestro país. De particular agrado es resaltar la continuidad en el programa de actividades formales de Divulgación de la Ciencia y la Tecnología, para ello se cuenta con la participación del Grupo Quark de la Universidad Autónoma de Zacatecas (UAZ). Durante esta semana se impartirán conferencias y talleres dedicados a los estudiantes de educación media y superior. El propósito es introducir a los estudiantes en los campos que la Sociedad cultiva. Otro propósito vital es estimular la participación de profesores y estudiantes de Licenciatura y Posgrado en las actividades del Congreso. La realización de este evento sería impensable sin el apoyo económico de los diferentes patrocinadores, de manera particular del Instituto Politécnico Nacional, del INAOE y de la Universidad Popular Autónoma del Estado de Puebla (UPAEP). Como cada año hemos recibido apoyo por parte de la AVS Science and Technology. También se han recibido aportaciones a través de las Membresías Institucionales por parte de Instituciones y Centros de Investigación, además de algunas Empresas de la iniciativa privada. La lista de patrocinadores se presenta en una sección posterior, a ellos nuestro profundo agradecimiento. Expresamos nuestro sincero agradecimiento a Diana García y Alejandra García, del CINVESTAV-DF (Física). Asimismo expresamos un gran reconocimiento a la labor de Leticia Tecuapetla, Raquel Muñoz, Gabriela López, Héctor López y Gorgonio Cerón, del INAOE, todos ellos por su gran aporte en los trabajos de organización de este Congreso. Reiteramos nuestra más calurosa bienvenida. Atentamente, La Mesa Directiva 2005 - 2006 Puebla, Pue., México, 25 – 29 de Septiembre 2006 ORGANIZADORES DE LOS SIMPOSIOS Simposio Organizador Biomateriales Miguel Ángel Camacho López Jesús Bernal Alvarado Calculos Ab-Initio Jesús Arriaga Caracterizacion Y Metrologia Mauricio López Sergio López Celdas Solares Juan Luis Peña Chapa Cerámicos Avanzados y Multifuncionales Juan Muñoz Saldaña Divulgacion De La Ciencia Javier Luyo Francisco Renero Fenomenos Fototermicos Sergio A. Tomás MEMS José Mireles Jr Microelectronica F. Javier de la Hidalga Wade Nanoestructuras Víctor Hugo Méndez García Peliculas Delgadas, Dielectricos Y Recubrimientos Stephen Muhl Polimeros Luis Alfonso García Cerda Semiconductores Yuri Gurevich Miguel A. Meléndez Lira Sol-Gel Facundo Ruiz CONFERENCIAS PLENARIAS University of Washington Lara Gamble University of Toronto Alexander Y. Shik University of Central Florida Beatriz Cuenya INTEL/INAOE Reydezel Torres University of Illinois Joe Greene CINVESTAV Ciro Falcony Sandia National Laboratories Ernest J. García UNAM Jorge Rickards Ehime University Satoshi Shimomura IPN-ESIQIE Heberto Balmori Ramírez UAM-I Juan Morales Corona IPN Osvaldo Vigil SIMPOSIOS · Nanoestructuras 1 POSTER MARTES · · Cerámicos Avanzados y Multifunc. 2 POSTER MARTES · · Biomateriales 3 POSTER MARTES · · Cálculos Ab-initio y SuperCómputo 4 POSTER VIERNES · · Fenómenos Fototérmicos 5 POSTER MARTES · · Polímeros 6 POSTER MARTES · · Películas Delg, Diel. y Recubrim. 7 POSTER VIERNES · · Sol-Gel 8 POSTER VIERNES · · Caracterización y Metrología 9 POSTER MARTES · · Celdas Solares 10 POSTER MARTES · · MEMS 11 POSTER VIERNES · · Semiconductores 12 POSTER VIERNES · · Microelectrónica 13 POSTER VIERNES x Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales XXVI Congreso Nacional Puebla, Pue. 25-29 de septiembre 2006 CURSOS CORTOS SURFACE CHARACTERIZATION OF BIOMATERIALS Dr. Lara Gamble University of Washington NANOSCALE SURFACE PHYSICS Dr. Beatriz Roldan Cuenya University of Central Florida NUCLEATION AND GROWTH OF NANOSTRUCTURES (the materials science of small things: self-assembly and self-organization in inorganic systems) Dr. Joe Greene University of Illinois ENGINEERING IN BASIC VACUUM AND CRYOGENIC FUNDAMENTALS Dr. Ron Hawranko Regional Marketing Manager Leybold Vacuum USA Inc. xi Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales XXVI Congreso Nacional Puebla, Pue. 25-29 de septiembre 2006 CONTENIDO CONTENT Plenarias Sesiones Orales Cerámicos Avanzados y Multifunc Celdas Solares Biomateriales Polímeros Fenómenos Fototérmicos Películas Delgadas, Dieléctricas y Recubrimientos Caracterización y Metrología Semiconductores Sol-Gel Nanoestructuras Cálculos Ab-initio y Super Cómputo MEMS Microelectrónica Divulgación de la Ciencia Carteles I Nanoestructuras Cerámicos Avanzados y Multifuncionales Biomateriales Fenómenos Fototérmicos Polímeros Caracterización y Metrología Celdas Solares Carteles II Sol-Gel MEMS Semiconductores Películas Delgadas Microelectrónica Calculos Ab-initio y Supercómputo 12 Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales XXVI Congreso Nacional Puebla, Pue. 25-29 de septiembre 2006 CONFERENCIAS PLENARIAS 13 Sociedad Mexicana de Ciencia y Tecnología de Superficies y Materiales XXVI Congreso Nacional Puebla, Pue. 25-29 de septiembre 2006 In-situ electronic and catalytic properties of TiC-supported size- selected gold nanoparticles synthesized by diblock copolymer encapsulation B. Roldan Cuenya* University of Central Florida, Department of Physics, Orlando, FL 32816 E-mail: [email protected] TiC-supported size- and shape-selected Au nanoparticles with well defined interparticle distances were synthesized by diblock copolymer encapsulation. Atomic force microscopy (AFM), transmission electron microscopy (TEM), scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS) and temperature programmed desorption (TPD) have been used to investigate the correlation between the nanocatalyst morphological/electronic structure and its chemical reactivity. Significant changes in the electronic local density of states (LDOS) of the nanoparticles, in particular, the onset of non-metallic behavior, were observed with decreasing particle size. The nanoparticle-support interaction was studied, and evidence for substrate- induced modifications in the LDOS of interfacial gold atoms is found [1]. Using the low temperature oxidation of CO as a model reaction, our TPD results also showed an enhancement of the catalytic activity with decreasing particle size. Two desorption features were observed and assigned to kinks/steps in the gold surface and the Au-TiC interface. The role of the interparticle distance on the activity is discussed. AFM measurements showed drastic morphological changes (Ostwald ripening) on the nanoparticles after CO oxidation when the initial interparticle distance was small (~30 nm). However, no sintering was observed for Au nanoparticles more widely spaced (~80 nm) [2]. [1] A. Naitabdi, L. K. Ono, B.
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