Highly Active Carbon-Supported Ni Catalyst Prepared by Nitrate Decomposition with a Sacrificial Agent for the Hydrogen Oxidation Reaction in Alkaline Medium
Science article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Journal of Electroanalytical Chemistry
ISSN: 1572-6657
|
| Output data |
Year: 2019,
Volume: 852,
Article number
: 113551,
Pages count
: 6
DOI:
10.1016/j.jelechem.2019.113551
|
| Tags |
Alkaline solutions; Hydrogen oxidation reaction; Ketjenblack DJ-600; Lyophilization; Nickel |
| Authors |
Simonov P.A.
1,2
,
Cherstiouk O.V.
1,2
,
Kuznetsov A.N.
1,2
,
Zaikovskii V.I.
1,2
,
Kardash T.Y.
1,2
,
Oshchepkov A.G.
1
,
Bonnefont A.
3
,
Savinova E.R.
4
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russian Federation
|
| 2 |
Novosibirsk State University, Novosibirsk, 630090, Russian Federation
|
| 3 |
Institut de Chimie de Strasbourg, UMR 7177 CNRS-University of StrasbourgStrasbourg 67070, France
|
| 4 |
Institut de Chimie et Procédés pour l'Energie, l'Environnement et la Santé, UMR 7515 CNRS-University of Strasbourg, Strasbourg Cedex67087, France
|
|
Funding (2)
|
1
|
French National Centre for Scientific Research
|
PRC1553
|
|
2
|
Russian Foundation for Basic Research
|
17-53-150008
|
Ketjenblack EC-600 JD supported Ni/C electrocatalysts with a nickel content of 50 and 60 wt% were prepared by impregnation with either Ni(OAc)2 or a mixture of Ni(OAc)2 and Ni(NO3)2 precursors, followed by freeze-drying and reduction with H2. XRD, TEM and cyclic voltammetry were applied for characterizing the catalysts. The use of Ni(OAc)2 as a sacrificial agent during decomposition of Ni(NO3)2 allows one to decrease significantly the size of nickel nanoparticles (from 37 to 12 nm) at a very high metal loading. Benefiting from the high dispersion and high specific activity, 60 % Ni/Ketjenblack EC-600 JD possesses remarkable mass activity (7 A∙g−1 Ni) in the hydrogen oxidation reaction in an alkaline electrolyte. © 2019 Elsevier B.V.