The Influence of Carbon Support Porosity on the Activity of PtRu/Sibunit Anode Catalysts for Methanol Oxidation Научная публикация
| Конференция |
Fuel Cells : Science and Technology. Scientific Advances in Fuel Cell Systems 06-07 окт. 2004 , Munich |
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| Журнал |
Journal of Power Sources
ISSN: 0378-7753 |
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| Вых. Данные | Год: 2005, Том: 145, Номер: 2, Страницы: 178-187 Страниц : 10 DOI: 10.1016/j.jpowsour.2004.12.064 | ||||||
| Ключевые слова | Anode performance, Carbon support, Catalyst utilisation, DMFC, PtRu anode, Sibunit carbons | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (2)
| 1 | German Research Foundation | 436RUS113-718-1-1 |
| 2 | German Research Foundation | Sti 74-8-4 |
Реферат:
In this paper we analyse the promises of homemade carbon materials of Sibunit family prepared through pyrolysis of natural gases on carbon black surfaces as supports for the anode catalysts of direct methanol fuel cells. Specific surface area (SBET) of the support is varied in the wide range from 6 to 415 m2 g−1 and the implications on the electrocatalytic activity are scrutinized. Sibunit supported PtRu (1:1) catalysts are prepared via chemical route and the preparation conditions are adjusted in such a way that the particle size is constant within ±1 nm in order to separate the influence of support on the (i) catalyst preparation and (ii) fuel cell performance. Comparison of the metal surface area measured by gas phase CO chemisorption and electrochemical CO stripping indicates close to 100% utilisation of nanoparticle surfaces for catalysts supported on low (22–72 m2 g−1) surface area Sibunit carbons. Mass activity and specific activity of PtRu anode catalysts change dramatically with SBET of the support, increasing with the decrease of the latter. 10%PtRu catalyst supported on Sibunit with specific surface area of 72 m2 g−1 shows mass specific activity exceeding that of commercial 20%PtRu/Vulcan XC-72 by nearly a factor of 3.
Библиографическая ссылка:
Rao V.
, Simonov P.A.
, Savinova E.R.
, Plaksin G.V.
, Cherepanova S.V.
, Kryukova G.N.
, Stimming U.
The Influence of Carbon Support Porosity on the Activity of PtRu/Sibunit Anode Catalysts for Methanol Oxidation
Journal of Power Sources. 2005. V.145. N2. P.178-187. DOI: 10.1016/j.jpowsour.2004.12.064 WOS Scopus РИНЦ OpenAlex CAPlusCA
The Influence of Carbon Support Porosity on the Activity of PtRu/Sibunit Anode Catalysts for Methanol Oxidation
Journal of Power Sources. 2005. V.145. N2. P.178-187. DOI: 10.1016/j.jpowsour.2004.12.064 WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Принята к публикации: | 29 дек. 2004 г. |
| Опубликована online: | 3 мая 2005 г. |
| Опубликована в печати: | 18 авг. 2005 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000231893300011 |
| ≡ Scopus: | 2-s2.0-23844463541 |
| ≡ РИНЦ: | 13493848 |
| ≡ OpenAlex: | W2122334757 |
| ≡ Chemical Abstracts: | 2005:821623 |
| ≡ Chemical Abstracts (print): | 143:462958 |