Chemical and Morphological Characterization of a Direct Methanol Fuel Cell Based on a Quaternary Pt-Ru-Sn-W/C Anode Научная публикация
Журнал |
Journal of Applied Electrochemistry
ISSN: 0021-891X , E-ISSN: 1572-8838 |
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Вых. Данные | Год: 1996, Том: 26, Номер: 9, Страницы: 959-967 Страниц : 9 DOI: 10.1007/BF00242049 | ||||||
Ключевые слова | Sulfuric acid; oxidation; electrodes; platinum; electrooxidation; catalyst | ||||||
Авторы |
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Организации |
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Реферат:
Conventional and ‘paste process’ methods were investigated to fabricate the membrane/electrode assembly (M&E) for application in a vapour-feed direct methanol fuel cell. A quaternary Pt-RuSn-W/C and a Pt/C catalysts were employed for methanol oxidation and oxygen reduction, respectively. The structure and chemical composition of the catalysts were investigated by transmission electron microscopy (TEM) and X-ray powder diffraction (XRD). A crystalline Pt f.c.c. phase was found to prevail in both catalysts. Agglomeration and twinned particles were frequently observed in the Pt-Ru-Sn-W/C catalyst. Electrochemical investigations were performed by a.c.-impedance spectroscopy and galvanostatic polarization. The ‘paste process’ based assembly showed a significantly lower uncompensated resistance and an approximately two-fold power density increase with respect to the conventional assembly. According to the scanning electron microscopy analysis the observed results were attributed to improved bonding between catalysts and perfluorosulfonic membrane and to a larger extension of the three-phase reaction zone in the ‘paste process’ based assembly.
Библиографическая ссылка:
Aricò A.S.
, Cretì P.
, Giordano N.
, Antonucci V.
, Antonucci P.L.
, Chuvilin A.
Chemical and Morphological Characterization of a Direct Methanol Fuel Cell Based on a Quaternary Pt-Ru-Sn-W/C Anode
Journal of Applied Electrochemistry. 1996. V.26. N9. P.959-967. DOI: 10.1007/BF00242049 WOS Scopus РИНЦ
Chemical and Morphological Characterization of a Direct Methanol Fuel Cell Based on a Quaternary Pt-Ru-Sn-W/C Anode
Journal of Applied Electrochemistry. 1996. V.26. N9. P.959-967. DOI: 10.1007/BF00242049 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 30 окт. 1995 г. |
Опубликована в печати: | 1 сент. 1996 г. |
Идентификаторы БД:
Web of science | WOS:A1996VH21300009 |
Scopus | 2-s2.0-0030247846 |
РИНЦ | 13245573 |
Chemical Abstracts | 1996:575179 |
Chemical Abstracts (print) | 125:287176 |
OpenAlex | W1995674452 |