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Promotional effect of Sn-ad on the ethanol oxidation at Pt3Sn/C catalyst

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2009
Authors
Tripković, Amalija
Popović, Ksenija
Lović, Jelena
Jovanović, Vladislava M.
Stevanović, Sanja
Tripković, Dušan
Kowal, Andrzej
Article (Published version)
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Abstract
Oxidation of ethanol was studied at Sn-ad modified and unmodified Pt3Sn/C and Pt/C catalysts. Pt3Sn/C and Pt/C catalysts were characterized by XRD. Potentiodynamic and chronoamperometric measurements were used to establish catalytic activity and stability. High activity achieved at Sn-ad modified Pt3Sn/C catalyst has not been observed at any bimetallic catalyst so far. Promotional effect of Sn-ad on the ethanol oxidation was related to the enhancement of CO oxidation rate in bifunctional mechanism. It was shown that electrodeposited Sn exhibited different effect on the catalytic activity compared to Sn in alloy.
Keywords:
Ethanol oxidation / Sn adlayer / Pt3Sn/C / Pt/C / XRD
Source:
Electrochemistry Communications, 2009, 11, 5, 1030-1033
Publisher:
  • Elsevier Science Inc, New York
Projects:
  • Novi materijali za primenu u gorivim spregovima sa polimernom membranom (RS-142056)

DOI: 10.1016/j.elecom.2009.03.004

ISSN: 1388-2481

WoS: 000266538200025

Scopus: 2-s2.0-67349151087
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/532
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