A High Performance Direct Borohydride Fuel Cell Using Bipolar Interfaces and Noble Metal-Free Ni-Based Anodes Научная публикация
Журнал |
Journal of Materials Chemistry A, Materials for Energy and Sustainability
ISSN: 2050-7488 , E-ISSN: 2050-7496 |
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Вых. Данные | Год: 2020, Том: 8, Номер: 39, Страницы: 20543-20552 Страниц : 10 DOI: 10.1039/d0ta06405j | ||||||||||||
Ключевые слова | HYDROGEN ELECTRODE-REACTIONS; EVOLUTION REACTION; OXIDATION REACTION; NICKEL; MEMBRANE; NANOPARTICLES; PEROXIDE; ELECTROCATALYSTS; MECHANISMS; KINETICS | ||||||||||||
Авторы |
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Организации |
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Информация о финансировании (3)
1 | Российский научный фонд | 18-73-00143 |
2 | The French National Research Agency | MobiDiC ANR-16-CE05-0009-01 |
3 | Управление военно-морских исследований | N00014-16-1-2833 |
Реферат:
Due to its unmatched theoretical voltage of 2.18 V, a direct alkaline fuel cell using sodium borohydride solution at the anode and hydrogen peroxide at the cathode represents a promising power source for high energy density applications. However, its development faces several challenges. Here we demonstrate a BH4-/H(2)O(2)direct borohydride fuel cell (DBFC) with a platinum group metal (PGM)-free anode, which delivers an unprecedented combination of 2.0 V open-circuit voltage and a peak power density of 446 mW cm(-2). This exceptionally high cell voltage is enabled by combining a pH-gradient-enabled microscale bipolar interface (PMBI), a Ni anode obtained by electrodeposition of Ni nanoparticles on a chemically etched Ni felt (eNFT), and a specially designed simple but efficient coating procedure to deposit anion-exchange ionomers on the anode surface. The PMBI efficiently separates the drastically disparate pH of the anolyte and the catholyte, the Ni-ED/eNFT anode provides a high surface area for efficient electrocatalysis and open porosity for fast mass-transport, while the coating procedure allows preserving Ni in the metallic state, the latter being a prerequisite for high anode performance. This work details how such fully nickel-based anodes are obtained and demonstrates why their BOR activity and stability outperform those of PGM-based anodes.
Библиографическая ссылка:
Braesch G.
, Wang Z.
, Sankarasubramanian S.
, Oshchepkov A.G.
, Bonnefont A.
, Savinova E.R.
, Ramani V.
, Chatenet M.
A High Performance Direct Borohydride Fuel Cell Using Bipolar Interfaces and Noble Metal-Free Ni-Based Anodes
Journal of Materials Chemistry A, Materials for Energy and Sustainability. 2020. V.8. N39. P.20543-20552. DOI: 10.1039/d0ta06405j WOS Scopus РИНЦ
A High Performance Direct Borohydride Fuel Cell Using Bipolar Interfaces and Noble Metal-Free Ni-Based Anodes
Journal of Materials Chemistry A, Materials for Energy and Sustainability. 2020. V.8. N39. P.20543-20552. DOI: 10.1039/d0ta06405j WOS Scopus РИНЦ
Файлы:
Полный текст от издателя
Даты:
Поступила в редакцию: | 30 июн. 2020 г. |
Принята к публикации: | 4 сент. 2020 г. |
Опубликована online: | 4 сент. 2020 г. |
Опубликована в печати: | 21 окт. 2020 г. |
Идентификаторы БД:
Web of science | WOS:000578872600027 |
Scopus | 2-s2.0-85094831837 |
РИНЦ | 45218197 |
Chemical Abstracts | 2020:1760394 |
OpenAlex | W3083332289 |