| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Newcastle Univ, Sch Chem Engn & Adv Mat, Newcastle Upon Tyne NE1 7RU, Tyne & Wear - England
[2] Univ Fed Sao Carlos, Dept Quim, NANOFAEL, LIEC, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | Electrochemistry Communications; v. 13, n. 10, p. 1147-1150, OCT 2011. |
| Web of Science Citations: | 15 |
| Abstract | |
In this work, Pt(pc)/Ir/Pt metallic multilayer nanostructured electrodes were prepared. The composition and number of the constituent metal layers were varied and the number of Ir and Pt layers studied were: 1.5:1.5, 1.5:10,10:1.5,10:10 and 250:250 Ir and Pt monolayers. The ethanol electrooxidation reaction and its products was studied using electrochemical in situ FUR technique and could be observed as a selective cleavage of the ethanol C-C bond in acidic electrolyte. Neither acetaldehyde nor acetic acid IR band could be observed for ethanol electrooxidation at 1.5 V vs. RHE over Pt(pc)/Ir(250)/Pt(250) metallic multilayer electrodes. Also, the enhancement on CO(2) production over this electrode was more than six times the amount observed using the Pt(pc) electrodes. Thus, the complete C-C cleavage bond in ethanol molecule was observed, leading only CO(2) as reaction product. (C) 2011 Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 05/04708-1 - Preparacao e caracterizacao de multicamadas metalicas para eletrocatalise. |
| Grantee: | Renato Garcia de Freitas Sobrinho |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 10/05555-2 - Electrochemical investigation of TiO2-nanotubes formation and its application on energy convertion nanostructured systems |
| Grantee: | Renato Garcia de Freitas Sobrinho |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 03/09933-8 - Center for Excellence in Electrochemically Synthesized Nanostructures |
| Grantee: | Ernesto Chaves Pereira de Souza |
| Support Opportunities: | PRONEX Research - Thematic Grants |