Indexed by:
Abstract:
Here, polyhedral nickel-tungsten oxide (NiWO) precursor was prepared on nickel foam via the one-step hydrothermal method, and then it was phosphatized at different temperatures to obtain the plate nickel-tungsten phosphide (NiWP)@polyhedral NiWO composite electrocatalyst. The results showed that optimizing phosphating temperature can significantly improve the electrocatalytic hydrogen evolution performance of the plate NiWP@polyhedron NiWO. When the phosphating temperature was 450 degrees C, it exhibited excellent hydrogen evolution catalytic activity with an overpotential of 115 mV to achieve 10 mA center dot cm(-2). The Tafel slope was 85 mV center dot dec(-1), which was similar to Pt. In addition, the 24 h long-term stability test showed that the electrocatalyst had good stability. This excellent performance can be attributed to the fact that the plate NiWP@polyhedral NiWO composite structure increases the catalytic active area, reduces the charge/mass transfer resistance, accelerates the electron transfer rate, and increases the reaction kinetics performance.
Keyword:
Reprint Author's Address:
Email:
Source :
CHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN: 1001-4861
Year: 2022
Issue: 7
Volume: 38
Page: 1283-1290
0 . 7
JCR@2022
0 . 7 0 0
JCR@2022
ESI Discipline: CHEMISTRY;
ESI HC Threshold:53
JCR Journal Grade:4
CAS Journal Grade:4
Cited Count:
WoS CC Cited Count: 3
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 5
Affiliated Colleges: