In:
New Journal of Chemistry, Royal Society of Chemistry (RSC), Vol. 45, No. 45 ( 2021), p. 21334-21341
Abstract:
Hydrogen is now becoming a great source of efficient and clean energy to cope with the world's energy problem. The electrochemical hydrogen evolution reaction (HER) is a non-polluting way to get large quantities of hydrogen. To accelerate the HER, it is very important to develop catalysts with a high HER performance. In this report, a CoS 2 -porous carbon foam (CoS 2 -CF- X , X = 1, 2, 3, and 4) catalyst for the HER was obtained using a hydrothermal method. Porous carbon foam provided a vehicle for rapid electron transport for CoS 2 , which made the prepared catalyst exhibit an excellent catalytic activity of the HER with a small overpotential of 121 mV at a current density of 10 mA cm −2 ; meanwhile the Tafel slope is 68 mV dec −1 . In addition, the CoS 2 -CF catalyst displayed an excellent cyclic stability after 4000 cycles.
Type of Medium:
Online Resource
ISSN:
1144-0546
,
1369-9261
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2021
detail.hit.zdb_id:
1472933-7
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