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Electronic and geometric structure of nano-materials: synchrotron radiation studies

Grant number: 07/54829-5
Support type:Research Projects - Thematic Grants
Duration: February 01, 2009 - January 31, 2014
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal Investigator:Richard Landers
Grantee:Richard Landers
Home Institution: Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Co-Principal Investigators:George Gershon Kleiman ; Pedro Augusto de Paula Nascente
Associated scholarship(s):11/13848-2 - Understanding the SMSI effect through the use of model catalysts, BP.PD
10/14888-5 - Study of catalytic properties of metallic nanoparticles on iron oxide applied to the methane and ethanol reforming, BP.PD
10/17953-2 - Study of catalysts constituted by gold and palladium nanoparticles deposited on different metal oxide supports, BP.PD

Abstract

Designing a surface with predefined characteristics to work as a catalyst for a specific reaction, or to have specific magnetic properties, or to have a stable interface with an underling support (as is needed for high k materials on a silicon wafer to produce nano CMOS semiconductor device) has been the long-term goal of many surface scientists. So far it has been a elusive goal, but one can be absolutely convinced that any progress in this direction will be based on a complete understanding of the inter play between electronic structure and the position of the atoms on the surface or at an interface. These atoms find themselves in an environment that has few symmetries, nearest neighbors can be different from site to site, atomic distances likewise. Over all it is the electronic structure of the atoms that defines these features, but sometimes the atomic arrangement can influence the electronic structure. The study of this kind of inter-relation requires the use of different experimental techniques and computational approaches. In Brazil very few centers have groups that have these kinds of capabilities. In this thematic project we will try to update the experimental infrastructure operated by the Surface Group in 'Campinas' (UNICAMP/LNLS/UFSCAR) and use the research and 'training' associated with a DFG/IRTG project with Uni Dortmund to help develop our experimental and theoretical capabilities. We will explore these interactions basically in the types of structure, surface alloys, metal oxide nanoparticle systems and semiconductor oxide interfaces, using XPS, PED and STM. Systems with catalytic properties, magnetic properties or electronic properties will be studied. (AU)

Articles published in Agência FAPESP Newsletter about the research grant
Brazilian researchers investigate surface physics at nanometric scale 

Scientific publications (12)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
MENDES, LETICIA FRANCINE; DE SIERVO, ABNER; DE ARAUJO, WILLIAM REIS; LONGO CESAR PAIXAO, THIAGO REGIS. Reagentless fabrication of a porous graphene-like electrochemical device from phenolic paper using laser-scribing. Carbon, v. 159, p. 110-118, APR 15 2020. Web of Science Citations: 0.
DOS SANTOS, ALISSON CECCATTO; DE CAMPOS FERREIRA, RODRIGO CEZAR; MORENO-LOPEZ, JUAN CARLOS; BARRETO, LUCAS; LEPPER, MICHAEL; LANDERS, RICHARD; STEINRUECK, HANS-PETER; MARBACH, HUBERTUS; DE SIERVO, ABNER. Cyano-Functionalized Porphyrins on Cu(111) from One-Dimensional Wires to Two-Dimensional Molecular Frameworks: On the Role of Co-Deposited Metal Atoms. CHEMISTRY OF MATERIALS, v. 32, n. 5, p. 2114-2122, MAR 10 2020. Web of Science Citations: 0.
GIRAO, DANIEL DE CASTRO; BERES, MILOSLAV; JARDINI, ANDRE LUIZ; MACIEL FILHO, RUBENS; SILVA, CLEITON CARVALHO; DE SIERVO, ABNER; GOMES DE ABREU, HAMILTON FERREIRA; ARAUJO, WALNEY SILVA. An assessment of biomedical CoCrMo alloy fabricated by direct metal laser sintering technique for implant applications. Materials Science & Engineering C-Materials for Biological Applications, v. 107, FEB 2020. Web of Science Citations: 0.
MORENO-LOPEZ, JUAN CARLOS; JOHN MOWBRAY, DUNCAN; PEREZ PAZ, ALEJANDRO; DE CAMPOS FERREIRA, RODRIGO CEZAR; DOS SANTOS, ALISSON CECCATTO; AYALA, PAOLA; DE SIERVO, ABNER. Roles of Precursor Conformation and Adatoms in Ullmann Coupling: An Inverted Porphyrin on Cu(111). CHEMISTRY OF MATERIALS, v. 31, n. 8, p. 3009-3017, APR 23 2019. Web of Science Citations: 0.
DE CAMPOS FERREIRA, RODRIGO CEZAR; DE LIMA, LUIS HENRIQUE; BARRETO, LUCAS; SILVA, CAIO C.; LANDERS, RICHARD; DE SIERVO, ABNER. Unraveling the Atomic Structure of Fe Intercalated under Graphene on Ir(111): A Multitechnique Approach. CHEMISTRY OF MATERIALS, v. 30, n. 20, p. 7201-7210, OCT 23 2018. Web of Science Citations: 1.
AUGUSTO, GABRIEL DE SOUZA; SCARMINIO, JAIR; CATARINI SILVA, PAULO ROGERIO; DE SIERVO, ABNER; ROUT, CHANDRA SEKHAR; ROUXINOL, FRANCISCO; GELAMO, ROGERIO VALENTIM. Flexible metal-free supercapacitors based on multilayer graphene electrodes. Electrochimica Acta, v. 285, p. 241-253, SEP 20 2018. Web of Science Citations: 12.
PANCOTTI, A.; ABREU, G. J. P.; WANG, J. L.; FERREIRA, A. V. M.; LANDERS, R.; DE SIERVO, A. Formation of Rh islands on Pd-supported alpha-Fe2O3 (0001). CrystEngComm, v. 19, n. 15, p. 2089-2095, APR 21 2017. Web of Science Citations: 1.
PANCOTTI, A.; DE SIERVO, A.; NASCENTE, P. A. P.; LANDERS, R. Surface structure characterization of ultra-thin films of Au deposited on Pd(111). Surface Science, v. 648, n. SI, p. 250-255, JUN 2016. Web of Science Citations: 1.
PRIETO, MAURICIO J.; CARBONIO, EMILIA A.; LANDERS, RICHARD; DE SIERVO, ABNER. Promotion Effect of Platinum on Gold's Reactivity: A High-Resolution Photoelectron Spectroscopy Study. Journal of Physical Chemistry C, v. 120, n. 19, p. 10227-10236, MAY 19 2016. Web of Science Citations: 1.
CARBONIO, EMILIA A.; PRIETO, MAURICIO J.; DE SIERVO, ABNER; LANDERS, RICHARD. From 1D to 3D Ru Nanostructures on a Pt Stepped Surface as Model Systems in Electrocatalysis: UHV-STM and XPS Study. Journal of Physical Chemistry C, v. 118, n. 49, p. 28679-28688, DEC 11 2014. Web of Science Citations: 8.
NASCENTE, P. A. P.; MALUF, S. S.; AFONSO, C. R. M.; LANDERS, R.; PINHEIRO, A. N.; LEITE, E. R. Au and Pd nanoparticles supported on CeO2, TiO2, and Mn2O3 oxides. Applied Surface Science, v. 315, p. 490-498, OCT 1 2014. Web of Science Citations: 8.
PRIETO, MAURICIO J.; CARBONIO, EMILIA A.; FATAYER, SHADI; LANDERS, RICHARD; DE SIERVO, ABNER. Electronic and structural study of Pt-modified Au vicinal surfaces: a model system for Pt-Au catalysts. Physical Chemistry Chemical Physics, v. 16, n. 26, p. 13329-13339, 2014. Web of Science Citations: 9.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.