| Texto completo | |
| Autor(es): |
Fernandez, Pablo S.
[1, 2]
;
Martins, Caue A.
[3]
;
Angelucci, Camilo A.
[4]
;
Gomes, Janaina F.
[5]
;
Camara, Giuseppe A.
[6]
;
Martins, Maria E.
[7]
;
Tremiliosi-Filho, Germano
[2]
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Inst Quim, Sao Paulo - Brazil
[2] Univ Sao Paulo, Inst Quim Sao Carlos, Sao Paulo - Brazil
[3] Fundacao Univ Fed Grande Dourados, Fac Cs Exatas & Tecnol, Dourados, MS - Brazil
[4] Univ Fed ABC, Ctr Ciencias Nat & Humanas, Sao Paulo - Brazil
[5] Univ Fed Sao Carlos Santo Sao Carlos, Dept Engn Quim, Sao Paulo - Brazil
[6] Univ Fed Mato Grosso do Sul, Inst Quim, Campo Grande, MS - Brazil
[7] Univ Nacl La Plata, INIFTA CONICET, RA-1900 La Plata, Buenos Aires - Argentina
Número total de Afiliações: 7
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CHEMELECTROCHEM; v. 2, n. 2, p. 263-268, FEB 11 2015. |
| Citações Web of Science: | 19 |
| Resumo | |
We investigate the electrooxidation of glycerol (GlOH) on polycrystalline Pt. The results obtained in the presence of GlOH were compared with those of fresh and disturbed low-index Pt single crystals {[}(111), (100) and (110)]. Monitoring of the oxidation currents of GlOH by cyclic voltammetry on the different surfaces revealed that the electrooxidation of GlOH is highly sensitive to the order of the polycrystalline Pt atoms. Interestingly, after being disturbed by the application of voltammetric cycles, the combined responses of the disordered single crystals become similar to that of polycrystalline Pt. The changes in the current values associated with the specific potentials at which each oxidation peak takes place suggest that different ordered domains of Pt oxidize GlOH independently. This simple approach can clearly assist in our understanding of the effect of the order of surface atoms in a given reaction, not only in electrochemical reactions. (AU) | |
| Processo FAPESP: | 13/13749-0 - Conversão eletroquímica de glicerol em compostos de maior valor agregado: estudos do mecanismo e cinética reacional |
| Beneficiário: | Janaina de Souza Garcia |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 14/01362-6 - Investigação do mecanismo de eletro-oxidação de combustíveis renováveis sobre monocristais e nanomateriais de Pt e Pd. |
| Beneficiário: | Pablo Sebastián Fernández |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |