Nickel 3D Structures Enhanced by Electrodeposition of Nickel Nanoparticles as High Performance Anodes for Direct Borohydride Fuel Cells
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
ChemElectroChem
ISSN: 2196-0216
|
| Output data |
Year: 2020,
Volume: 7,
Number: 7,
Pages: 1789-1799
Pages count
: 11
DOI:
10.1002/celc.202000254
|
| Tags |
borohydride oxidation reaction; direct borohydride fuel cell; electrodeposition; nickel; PGM-free anode |
| Authors |
Braesch Guillaume
1,2
,
Oshchepkov Alexandr G.
2,3
,
Bonnefont Antoine
4
,
Asonkeng Fabrice
5
,
Maurer Thomas
5
,
Maranzana Gaël
6
,
Savinova Elena R.
2
,
Chatenet Marian
1
|
| Affiliations |
| 1 |
University Grenoble Alpes, University Savoie Mont Blanc CNRS, Grenoble INP (Institute of Engineering, University Grenoble Alpes) LEPMI, 38000 Grenoble, France
|
| 2 |
Institut de Chimie et Procédés pour l’Energie, l’Environnement et la Santé, UMR 7515 CNRS-University of Strasbourg, 67087 Strasbourg Cedex, France
|
| 3 |
Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
|
| 4 |
Institut de Chimie de Strasbourg, UMR 7177 CNRS-University of Strasbourg, 67070 Strasbourg, France
|
| 5 |
Laboratoire Lumière, nanomatériaux & nanotechnologies – L2n, Université de Technologie de Troyes & CNRS ERL 7004, 12 rue Marie Curie, 10000 Troyes, France
|
| 6 |
Université de Lorraine, CNRS, LEMTA, UMR 7563, 54504 Vandoeuvre Les Nancy, France
|
|
Funding (6)
|
1
|
Russian Science Foundation
|
18-73-00143
|
|
2
|
The French National Research Agency
|
MobiDiC ANR-16-CE05-0009-01
|
|
3
|
The French National Research Agency
|
CEMAM ANR-10-LABX-44-01
|
|
4
|
The French National Research Agency
|
INSOMNIA ANR-18-CE09-0003
|
|
5
|
SAYENS
|
|
|
6
|
European Commission
|
|
Direct borohydride fuel cell (DBFC) is a promising technology to power portable and mobile devices thanks to their high theoretical voltage and good energy density. Carbon‐supported electrodeposited nickel‐metal catalysts (NiED/C) exhibit fast kinetics for the borohydride oxidation reaction (BOR). One key is to deposit nickel‐metal on sufficiently open structures to make electrodes compatible with fast mass‐transfer, so as to further optimize the fuel cell performance. To that goal, Ni foams (NFM) or felts (NFT) can be used. Being inherently surface‐oxidized (passivated) and of too low developed area, these supports were enhanced by both oxides removal/depassivation (using electro‐assisted (or not) acid etching) and nickel electrodeposition, in order to exhibit the combined properties of fast diffusion medium and high‐surface area resulting in the highly‐active catalysts. After such enhancement, NiED/NFT shows superior performance in the BOR compared to carbon‐supported Ni catalysts. To make a fair comparison with PGM, Pt catalysts supported on open carbon structures were also studied and presented slightly smaller performance than the NiED/NFT electrodes, in particular in terms of open‐circuit potential and current density at high cell voltage.