2004
DOI: 10.1016/j.ssi.2004.09.055
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Pt-based anode catalysts for direct ethanol fuel cells

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Cited by 553 publications
(75 citation statements)
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“…Estudos recentes têm mostrado que os eletrocatalisadores PtSn/C são mais ativos que eletrocatalisadores PtRu/C na eletro-oxidação do etanol [8][9][10][11][12][13]. No entanto, a eletro-oxidação do etanol não é completa e acetaldeído e ácido acéti-co são os principais produtos formados [8][9][10][11][12][13].…”
Section: Introductionunclassified
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“…Estudos recentes têm mostrado que os eletrocatalisadores PtSn/C são mais ativos que eletrocatalisadores PtRu/C na eletro-oxidação do etanol [8][9][10][11][12][13]. No entanto, a eletro-oxidação do etanol não é completa e acetaldeído e ácido acéti-co são os principais produtos formados [8][9][10][11][12][13].…”
Section: Introductionunclassified
“…No entanto, a eletro-oxidação do etanol não é completa e acetaldeído e ácido acéti-co são os principais produtos formados [8][9][10][11][12][13].…”
Section: Introductionunclassified
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“…For PtRu-XC, the peak position of Pt (1 1 1) (40.5°) shifts positively compared with that of Pt crystalline (39.8°), indicating the formation of PtRu alloy; however, for PtRu-GMC-2, the peak position of Pt (1 1 1 for whether Ru or RuO is observed in the XRD pattern of PtRu-GMC-2, it is deduced that Ru exists in an amorphous state. In contrast with PtRu-XC, the diffraction peak of Pt (1 1 1) for PtRu-GMC-1 (37.8°) shifts negatively but not positively like the PtRu alloy, indicating the presence of RuO x phase, as reported in references [32,33]. For PtRu-GMC-X (X = 1, 2), in addition to the diffraction peaks from graphite (0 0 2) near 26°and from Pt (1 1 1) near 39.8°, no other diffraction peaks for Pt or Ru are observed due to the strongly broadening of the diffraction peaks, indicating extremely small metal particles, which is confirmed by the following TEM analysis.…”
mentioning
confidence: 50%
“…[1] However, Pt is prone to be poisoned by the intermediates such as carbon monoxide and thus becoming inactive for ethanol oxidation in the potential region of fuel cells of interest. Fortunately, many studies have shown that addition of other metals such as Sn, [2,3] Mo, [4] and Pb [5] into Pt can mitigate poisoning and increase the catalytic activity of Pt. In order to better understand the role of Pb in Pt-Pb catalysts, study of the Pt-Pb phase diagram is necessary.…”
Section: Introductionmentioning
confidence: 99%