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Three-demensional Ni[sbnd]Co[sbnd]NiCo2O4/NF as an efficient electrode for hydrogen evolution reaction.
- Source :
-
International Journal of Hydrogen Energy . Jan2019, Vol. 44 Issue 1, p226-232. 7p. - Publication Year :
- 2019
-
Abstract
- Abstract At present, there is an urgent need for plentiful non-noble metal catalyst to substitute for valuableness platinum based metal catalyst in electrochemical water splitting. Here, we fabricated a three-demensional (3D) Ni Co NiCo 2 O 4 nanosheets electrocatalyst that directly grew on Ni foam firstly and then were reduced in 0.1 mol dm−3 sodium borohydride solution. This electrode exhibited high activity in 1.0 mol dm−3 KOH solution with an onset potential of ∼40 mV and a tafel slope of 77 mV dec−1. Furthermore, the Ni Co NiCo 2 O 4 /NF electrode showed a splendid durability during long-playing electrochemical test. Our work may provide an inexpensive, easy-to-obtain and excellent catalyst candidate for future electrolytic water research and industry studies that may involve hydrogen applications in the future. Highlights • The Ni Co NiCo 2 O 4 /NF is an inexpensive, easy-to-obtain and excellent electrode. • When the current density up to 10 mA cm−2 requires an overpotential 125 mV. • Metallic Ni and Co core enhance the electrode activity. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03603199
- Volume :
- 44
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- International Journal of Hydrogen Energy
- Publication Type :
- Academic Journal
- Accession number :
- 133665092
- Full Text :
- https://doi.org/10.1016/j.ijhydene.2018.03.050