B and Fe co-doped Co2P hollow nanocubes for nitrate electroreduction to ammonia

Jing Miao ¹Qingling Hong ²Liping Liang ¹Guomin Li ¹Zhihong Liu ³Shibin Yin ⁴Yu Chen²

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作者信息

1. School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China
2. School of Materials Science and Engineering,Shaanxi Normal University,Xi'an 710062,China
3. School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi'an 710062,China
4. Guangxi Key Laboratory of Electrochemical Energy Materials,School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China
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Abstract

Nitrate(NO3-)electroreduction reaction(NO3-RR)provides an attractive and sustainable route for NO3-pollution mitigation or energy-saved ammonia(NH3)synthesis.In this work,high-quality B and Fe co-doped Co2P hollow nanocubes(B/Fe-Co2P HNCs)are successfully synthesized though simultaneous boronation-phosphorization treatment,which reveal outstanding selectivity,activity,stability for the NO3-to NH3 conversion in neutral electrolyte because of big surface area,fast mass transport,super-hydrophilic surface,and optimized electronic structure.B/Fe-Co2P HNCs can achieve the high NH3 yield rate(22.67 mg h-1 mgcat-1)as well as Faradaic efficiency(97.54％)for NO3-RR,greatly outperforming most of non-precious metal based NO3-RR electrocatalysts.

Key words

Nitrate electroreduction reaction/Ammonia synthesis/Transition metal phosphides/Hollow nanocubes

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基金项目

山西省自然科学基金(202203021222213)

Taiyuan University of Science and Technology Scientific Research Initial Funding(20222091)

国家自然科学基金(22073061)

Science and Technology Innovation Team of Shaanxi Province(2023-CX-TD-27)

中央高校基本科研业务费专项(GK202202001)

出版年

2024

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCDCSCD

影响因子：0.771

ISSN：1001-8417

参考文献量47

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