期刊
CHEMICAL COMMUNICATIONS
卷 56, 期 72, 页码 10505-10508出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0cc04100a
关键词
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资金
- National Natural Science Foundation of China [51761024]
- Graduate Teaching Reform Project [JG201922]
- CAS ``Light of West China'' Program
- ``Feitian Scholar'' Program of Gansu Province
- Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University
The electrocatalytic N(2)reduction reaction (NRR) offers a sustainable route for ambient NH(3)production. To ensure a high NRR efficiency, it is critically important to design active electrocatalysts which possess a strong electron-donating capability to activate the stable NN bond and facilitate the protonation process. Herein, inspired by the FeV-cofactor as a catalytic site for biological N(2)fixation, we show that the FeVO(4)can be a highly efficient and durable NRR catalyst. The developed FeVO(4)porous nanorods delivered a favorable combination of both high NH(3)production rate (52.8 mu g h(-1)mg(-1)) and high faradaic efficiency (15.7%), surpassing those of nearly all the previously reported Fe- and V-based catalysts. Theoretical computations revealed that the high NRR performance of FeVO(4)originated from the Fe-2c-V(2c)dimer (2c means two-fold coordinated bond) as a dual electron-donation center to effectively activate the NRR with a low overpotential.
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