Oxygen vacancy-regulated nanorod array electrodes for boosting the electrocatalytic synthesis of ammonia from nitrate wastewater

被引：2
|
作者：
Yang, Ziyi [1 ]
Li, Yudong [2 ]
Liu, Dan [2 ]
Song, Maosen [1 ]
Gao, Yang [1 ]
Yang, Bin [1 ]
He, Yanzhen [1 ]
Han, Enshan [1 ]
Zhang, Qiang [3 ,4 ]
Yang, Xiaohui [5 ]
机构：
[1] Hebei Univ Technol, Sch Chem Engn, Tianjin 300400, Peoples R China
[2] Northeast Forestry Univ, Key Lab Biobased Mat Sci & Technol, Minist Educ, Harbin 150040, Peoples R China
[3] Chongqing Univ Technol, Sch Chem & Chem Engn, Chongqing 400054, Peoples R China
[4] Chinese Acad Sci, Dalian Inst Chem Phys, iChEM Collaborat Innovat Ctr Chem Energy Mat, Natl Engn Lab Methanol Olefins,Dalian Natl Lab Cle, Dalian 116023, Peoples R China
[5] Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2024年 / 60卷 / 73期
基金：
中国国家自然科学基金;
关键词：
23;
D O I：
10.1039/d4cc02726d
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The adsorption of nitrate is the key to enhancing the electrocatalytic nitrate reduction reaction (NitRR). Herein, a typical hydrolysis-coupled redox (HCR) reaction has been designed to prepare unique 3D Cu/Fe2O3 core-shell nanorod array cathodes with controllable oxygen vacancy concentrations for NitRR. The optimal Cu/Fe2O3-13 achieves a high nitrate conversion of 99.10% and ammonia selectivity of 98.30%. The outstanding electrochemical performance is attributed to the enhancement mechanism of OVs and a unique nanorod array structure with a high density of surface-exposed OVs and high-throughput transport pathways for ion-aspects.
引用
收藏
页码：9950 / 9953
页数：4
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