Improvement of the Performance of a Direct Methanol Fuel Cell Using a Pulse Technique Научная публикация
Журнал |
Journal of the Electrochemical Society
ISSN: 0013-4651 |
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Вых. Данные | Год: 2006, Том: 153, Номер: 6, Страницы: A997-A1003 Страниц : 7 DOI: 10.1149/1.2188330 | ||||
Ключевые слова | Anodes; Cathodes; Current density; Electrochemistry; Mass spectrometry; Methanol; Oxidation | ||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | German Research Foundation | Sti74/8-4 |
Реферат:
A pulse method is suggested for the improvement of the performance of a direct methanol fuel cell operated with PtRu anode and Pt cathode. The pulse method can be realized either in a potentiostatic or in a galvanostatic mode. In the galvanostatic regime of low current densities it allows for a temporary hoist of the cell voltage by up to 150mV . It is suggested that by periodically applying a pulse to the fuel cell, the anode potential is shifted to positive values at which the otherwise high COads coverage on the PtRu anode is decreased by oxidation. After the pulse, the methanol oxidation rate is enhanced until the previous COads coverage is re-established and a new pulse is then applied. Differential electrochemical mass spectroscopy data reveal that an appreciable voltage gain can be obtained at a reduction of only ca. 10–15% of the COads saturation coverage.
Библиографическая ссылка:
Neergat M.
, Seiler T.
, Savinova E.R.
, Stimming U.
Improvement of the Performance of a Direct Methanol Fuel Cell Using a Pulse Technique
Journal of the Electrochemical Society. 2006. V.153. N6. P.A997-A1003. DOI: 10.1149/1.2188330 WOS Scopus РИНЦ
Improvement of the Performance of a Direct Methanol Fuel Cell Using a Pulse Technique
Journal of the Electrochemical Society. 2006. V.153. N6. P.A997-A1003. DOI: 10.1149/1.2188330 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 30 июн. 2005 г. |
Принята к публикации: | 27 янв. 2006 г. |
Опубликована online: | 10 апр. 2006 г. |
Идентификаторы БД:
Web of science | WOS:000237229300008 |
Scopus | 2-s2.0-33646420354 |
РИНЦ | 13525019 |
Chemical Abstracts | 2006:609578 |
Chemical Abstracts (print) | 145:233017 |
OpenAlex | W2000012908 |