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Study of different bimetallic anodic catalysts supported on carbon for a high temperature polybenzimidazole-based direct ethanol fuel cell

Paper ID Volume ID Publish Year Pages File Format Full-Text
47737 46481 2009 6 PDF Available
Title
Study of different bimetallic anodic catalysts supported on carbon for a high temperature polybenzimidazole-based direct ethanol fuel cell
Abstract

In this work, two different catalysts, Pt–Ru (1:1), Pt–Sn (1:1), supported on both non-activated and activated carbon for the electro-oxidation of ethanol were studied in a H3PO4 doped polybenzimidazole-based fuel cell, using vapor fed ethanol and operating in the range of 150–200 °C. The catalysts were synthesized using NaBH4 as reducing agent and were characterized by X-ray diffraction, inductively coupled plasma-atomic emission spectroscopy and temperature programmed reduction. The best performance was reached at the highest temperature and with the catalyst based on Pt–Ru/Cact, using activated carbon as support. The best results for the Ru-based catalyst can be explained by the higher level of alloying reached for the Ru than that for Sn, which modifies the crystalline structure of Pt and enhances the activity oxidation of ethanol and of intermediates that can be generated during the oxidation of ethanol.

Keywords
DEFC; High temperature; Polibenzimidazole membrane; Pt–Ru/C; Pt–Sn/C
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Study of different bimetallic anodic catalysts supported on carbon for a high temperature polybenzimidazole-based direct ethanol fuel cell
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 91, Issues 1–2, 7 September 2009, Pages 269–274
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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