Direct ethanol fuel cell: Electrochemical performance at 90 degrees C on Pt and PtSn/C electrocatalysts
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/09/2013
19/09/2013
2012
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| Resumo |
Carbon-supported Pt-based electrocatalysts were synthesized by Pechini method for the ethanol oxidation (EOR). Physicochemical characterizations were helpful to estimate the diameters of the obtained materials ranging from 2 nm to 5 nm. Main electrochemical experiments were carried out at 90 degrees C i.e. under the working conditions of performing the single 5 cm(2) direct ethanol fuel cell (DEFC). Pt(80)Sn(20)/C was the anode catalyst which has given the highest power density of 37 mW cm(-2). Importantly, the IR spectroscopy measurements associated with the qualitative analysis done at the output of the anodic compartment of the fuel cell have shown that ethanol oxidation on Pt(80)Sn(20)/C was mainly a two-electron sustainable process. (C) 2011 Elsevier B.V. All rights reserved. CAPES/COFECUB [498/05] CAPESCOFECUB CAPES CAPES [0509078] |
| Identificador |
JOURNAL OF POWER SOURCES, AMSTERDAM, v. 198, n. 1, pp. 95-99, 2012 0378-7753 http://www.producao.usp.br/handle/BDPI/33498 10.1016/j.jpowsour.2011.09.060 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE BV AMSTERDAM |
| Relação |
JOURNAL OF POWER SOURCES |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE BV |
| Palavras-Chave | #DIRECT ETHANOL FUEL CELL #ETHANOL ELECTROOXIDATION #PT-SN #POLYMERIC PRECURSOR METHOD #ALCOHOL-REDUCTION PROCESS #PT-SN ELECTROCATALYSTS #ANODE CATALYSTS #FORMIC-ACID #ELECTROOXIDATION #OXIDATION #ELECTRODES #METHANOL #PT3SN #RU #ELECTROCHEMISTRY #ENERGY & FUELS |
| Tipo |
article original article publishedVersion |
