Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 9, Issue 5, Pages 1994-2002Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c04127
Keywords
Ni3N electrocatalyst; core/shell composite; hydrogen evolution reaction; alkaline electrolyte; cobalt-carbon layer
Categories
Funding
- Natural Science Foundation of Shanghai [19ZR1420200]
- Science and Technology Commission of Shanghai Municipality [14DZ2261000, 19DZ2271100]
- Shanghai Committee of Science and Technology [17DZ2282800]
Ask authors/readers for more resources
The study developed a novel technology to enhance stability of Ni3N by forming a (Co-C)/Ni3N core/shell composite through modification, demonstrating higher stability in alkaline solutions and excellent durability in 1.0 M KOH solution. This work introduced a practical approach for the development of highly efficient and sustainable non-noble-metal electrocatalysts under alkaline conditions.
The development of low cost, efficient, and sustainable electrocatalysts for the hydrogen evolution reaction (HER) is critical to the success of the hydrogen economy. Low-cost and high-efficiency Ni3N electrocatalysts have shown great potential to replace platinum-based (Pt) electrocatalysts. However, the challenge for the practical application of Ni3N electrocatalysts is their very low stability, especially in alkaline solutions. In this research we have developed a novel technology for the modification of Ni3N using a carbon layer containing amorphous cobalt species to form a (Co-C)/Ni3N core/shell composite. The composite catalyst is stable for HER in alkaline solutions. The (Co-C)/Ni3N electrocatalyst (0.7 mol %) has also exhibited excellent durability in a 1.0 M KOH solution. After 5000 electrochemical scanning cycles, the activity loss for (Co-C)/Ni3N is insignificant. This work has introduced a practical approach to the development of highly efficient and sustainable non-noble-metal electrocatalysts for electrocatalytic hydrogen evolution under alkaline conditions.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available