The catalytic activity for ethanol oxidation is studied as a function of the atomic composition of PtRu electrodeposits. Chronoamperometric curves taken at 0.5 V show that the current for ethanol oxidation at PtRu electrodeposits, measured 30 min after the application of a potential step from 0.05 V, increases in the presence of Ru up to a Ru content of about 40%. The highest value observed at 0.5 V vs. RHE was 30 muA/cm(2) at 25 degreesC. There is a relatively narrow range of PtRu compositions that present a high rate of ethanol oxidation. Pure Ru has no activity towards ethanol oxidation at room temperature. (C) 2004 Elsevier B.V. All rights reserved.
机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Kim, H
de Moraes, IR
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机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
de Moraes, IR
Tremiliosi-Filho, G
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机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Tremiliosi-Filho, G
Haasch, R
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机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Haasch, R
Wieckowski, A
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Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USAUniv Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Kim, H
de Moraes, IR
论文数: 0引用数: 0
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机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
de Moraes, IR
Tremiliosi-Filho, G
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h-index: 0
机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Tremiliosi-Filho, G
Haasch, R
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h-index: 0
机构:Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA
Haasch, R
Wieckowski, A
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机构:
Univ Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USAUniv Illinois, Sch Chem Sci, Dept Chem, Fritz Seitz Mat Res Lab, 600 Mathews Ave, Urbana, IL 61801 USA