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- Platinum-coated nanostructured oxides for active catalytic electrodes
- Universidade Estadual Paulista (UNESP)
- Ctr Tecnol Informação Renato Archer CTI
- Univ Jaume 1
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
- Ministerio de Ciência e Innovacion
- Generalitat Valenciana
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
- CAPES: 199/09
- Ministerio de Ciência e Innovacion: PHB-2008-040-PC
- Ministerio de Ciência e Innovacion: HOPE CSD2007-00007
- Ministerio de Ciência e Innovacion: MAT2007-62982
- Generalitat Valenciana: PROMETEO/2009/058
- In this work we propose the use of platinum-coated nanostructured oxides for improving the redox rate of active electrodes for applications in catalysts for water splitting, fuel cells, organic depollution, etc. In order to test this concept, CaCu(3)Ti(4)O(12) nanorods were grown by magnetron sputtering over Si/SiO(2)/Ti/Pt substrates and coated with a platinum layer using the same technique. The performance of this active electrode was studied by cyclic voltammetry and electrochemical impedance spectroscopy. Other Pt films (both dense and porous) deposited on oxidized silicon, and platinum-coated FTO-glass, when tested under the same conditions, were less efficient. The charge transfer resistance and the capacitance of one dimensional platinum-coated nanostructured electrodes were at least one order of magnitude better than those measured for platinum-coated FTO-glass. (C) 2011 Elsevier B.V. All rights reserved.
- Catalysis Communications. Amsterdam: Elsevier B.V., v. 14, n. 1, p. 58-61, 2011.
- Elsevier B.V.
- Active electrode
- Acesso restrito
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