Direct Borohydride Fuel Cells: A Selected Review of Their Reaction Mechanisms, Electrocatalysts and Influence of Operating Parameters on Their Performance Full article
Journal |
Current Opinion in Electrochemistry
ISSN: 2451-9103 , E-ISSN: 2451-9111 |
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Output data | Year: 2022, Volume: 32, Article number : 100883, Pages count : 12 DOI: 10.1016/j.coelec.2021.100883 | ||||||||||
Tags | Borohydride Oxidation Reaction; Direct Borohydride Fuel Cells; Platinum; Nickel; Palladium; Hydrogen escape | ||||||||||
Authors |
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Affiliations |
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Funding (3)
1 | The French National Research Agency | CEMAM ANR-10-LABX-44-01 |
2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0007 |
3 | The French National Research Agency | MobiDiC ANR-1-CE05-0017 |
Abstract:
Direct borohydride fuel cells (DBFC) oxidize an easily-stored energy-dense borohydride fuel (sodium borohydride: NaBH4), that in theory reacts ca. 400 mV below H2 and produce 8 electrons per BH4- anion. However, the borohydride oxidation reaction (BOR) does not fully meet these promises in practice: the electrocatalyst nature, structure and state-of-surface, and the operating conditions (pH, BH4- concentration, temperature, fluxes) noticeably influence the BOR kinetics and mechanism. Nickel and platinum-based catalysts both have assets for the BOR. DBFCs can only yield decent performance if their separator combines high ion-conductivity and efficient separation of the reactants; cation-exchange membranes, anion-exchange membranes, bipolar membranes and porous separators all have their own advantages and drawbacks. Besides the anode, the choice of separator must consider the DBFC cathode reaction, where oxygen (air) or hydrogen peroxide are reduced, provided adapted catalysts are used. All these aspects drive the DBFC performance and stability/durability.
Cite:
Oshchepkov A.
, Bonnefont A.
, Maranzana G.
, Savinova E.R.
, Chatenet M.
Direct Borohydride Fuel Cells: A Selected Review of Their Reaction Mechanisms, Electrocatalysts and Influence of Operating Parameters on Their Performance
Current Opinion in Electrochemistry. 2022. V.32. 100883 :1-12. DOI: 10.1016/j.coelec.2021.100883 WOS Scopus РИНЦ
Direct Borohydride Fuel Cells: A Selected Review of Their Reaction Mechanisms, Electrocatalysts and Influence of Operating Parameters on Their Performance
Current Opinion in Electrochemistry. 2022. V.32. 100883 :1-12. DOI: 10.1016/j.coelec.2021.100883 WOS Scopus РИНЦ
Dates:
Submitted: | Jul 2, 2021 |
Accepted: | Oct 28, 2021 |
Published online: | Nov 17, 2021 |
Published print: | Apr 1, 2022 |
Identifiers:
Web of science | WOS:000788053500015 |
Scopus | 2-s2.0-85120977118 |
Elibrary | 47541195 |
Chemical Abstracts | 2022:704501 |
Chemical Abstracts (print) | 179:69364 |
OpenAlex | W3212211363 |