Uniform cobalt grafted on vanadium nitride as a high efficient oxygen evolution reaction catalyst
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
---|---|
Pages (from-to) | 4386-4393 |
Journal / Publication | International Journal of Hydrogen Energy |
Volume | 47 |
Issue number | 7 |
Online published | 8 Dec 2021 |
Publication status | Published - Jan 2022 |
Link(s)
Abstract
The rational design of highly effective and low-cost catalysts for oxygen evolution reaction (OER) is of prime importance for the development of water splitting. However, the activity of electrocatalysts still needs enhancement to satisfy the practical application. Herein, we report Co nanoparticles grafted on vanadium nitride (VN) surface via in situ phase separation method by nitriding Co2V2O7 precursor. Benefiting the advantages of abundant active sites of Co, high conductivity and corrosion resistance of VN, the Co/VN achieves incredibly high activity and durability for OER with a low overpotential of 320 mV at a current density of 10 mV cm−2 with a small Tafel slope of 50.4 mV dec−1 and long-term stability. In addition, the in situ Raman further reveals the synergistic effect of Co and VN. Significantly, this study may enrich our knowledge and it can be extended to prepare other interconnected framework structures for the development of OER catalysts.
Research Area(s)
- Cobalt, Electrocatalysts, in situ Raman, Oxygen evolution reaction, Vanadium nitride
Citation Format(s)
Uniform cobalt grafted on vanadium nitride as a high efficient oxygen evolution reaction catalyst. / Peng, Xinyan; Huang, Chao; Dai, Jun et al.
In: International Journal of Hydrogen Energy, Vol. 47, No. 7, 01.2022, p. 4386-4393.
In: International Journal of Hydrogen Energy, Vol. 47, No. 7, 01.2022, p. 4386-4393.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review