| Grant number: | 07/54829-5 |
| Support Opportunities: | Research Projects - Thematic Grants |
| Start date: | February 01, 2009 |
| End date: | January 31, 2014 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Condensed Matter Physics |
| Principal Investigator: | Richard Landers |
| Grantee: | Richard Landers |
| Host Institution: | Instituto de Física Gleb Wataghin (IFGW). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil |
| City of the host institution: | Campinas |
| 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)
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