Voltammetric characterization of stepped platinum single crystal surfaces vicinal to the (110) pole
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
20/10/2012
20/10/2012
2009
|
| Resumo |
Platinum stepped surfaces vicinal to the (1 1 0) crystallographic pole have been investigated voltammetrically in 0.1 M HClO(4) and 0.1 M H(2)SO(4) solutions. Changes in the voltammetric profile with the step density suggest the existence of two types of surface sites, that has been ascribed to linear and bidimensional domains. This result indicates the existence of important restructuring processes that separate the real surface distribution from the nominal one. The electronic properties of the surfaces have been characterized with the CO charge displacement method and the potential of zero total charge has been calculated as a function of the step density. (c) 2009 Elsevier B.V. All rights reserved. MEC (Spain) MEC (Spain)[CTQ 2006-04071/BQU] CAPES Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) FAPESP Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq (Brazil) |
| Identificador |
ELECTROCHEMISTRY COMMUNICATIONS, v.11, n.7, p.1515-1518, 2009 1388-2481 http://producao.usp.br/handle/BDPI/31894 10.1016/j.elecom.2009.05.044 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE INC |
| Relação |
Electrochemistry Communications |
| Direitos |
restrictedAccess Copyright ELSEVIER SCIENCE INC |
| Palavras-Chave | #Platinum single crystal #Pt(110) #Stepped surfaces #Cyclic voltammetry #Potential of zero total charge #CO displacement #PERCHLORIC-ACID SOLUTION #ZERO TOTAL CHARGE #POLYCRYSTALLINE PLATINUM #ELECTROCHEMICAL-BEHAVIOR #PT(111) ELECTRODES #IN-SITU #ADSORPTION #REDUCTION #CO #DENSITY #Electrochemistry |
| Tipo |
article original article publishedVersion |
