Rare-earth La-doped VS2-x for electrochemical nitrate reduction to ammonia

被引：35

作者：

Wang, Guohui ^{[1
]}

Shen, Peng ^{[1
]}

Chen, Kai ^{[1
]}

Guo, Yali ^{[1
]}

Zhao, Xiaolin ^{[2
]}

Chu, Ke ^{[1
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Mat Sci & Engn, Lanzhou 730070, Peoples R China

[2] Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China

来源：

INORGANIC CHEMISTRY FRONTIERS | 2023年 / 10卷 / 07期

关键词：

S-VACANCIES;

D O I：

10.1039/d2qi02757g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

We report rare-earth La-doped VS2-x enriched with S-vacancies (La-VS2-x) towards the electrochemical nitrate reduction to ammonia (NO3RR), which shows a maximum NH3-faradaic efficiency of 96.6% with a corresponding NH3 yield rate of 11.3 mg h(-1) cm(-2) at -0.6 V vs. RHE. Theoretical computations unveil that La-dopants and S-vacancies synergistically promote NO3- activation, suppress hydrogen evolution and lower the energetic barriers, leading to the enhanced NO3RR activity and selectivity of La-VS2-x.

引用

页码：2014 / 2021

页数：8

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