ZnFe2O4 nanosheet array: a highly efficient electrocatalyst for ambient ammonia production via nitrite reduction

被引：3
|
作者：
Xu, Chenggang [1 ]
Liang, Yimei [1 ,2 ]
He, Xun [2 ]
Zhang, Ailin [1 ,2 ]
Ouyang, Ling [2 ]
Hu, Long [2 ]
Fan, Xiaoya [2 ]
Luo, Yongsong [3 ]
Zheng, Dongdong [3 ]
Sun, Shengjun [3 ]
Farouk, Asmaa [4 ]
Hamdy, Mohamed S. [4 ]
Sun, Xuping [2 ,3 ]
机构：
[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Sichuan, Peoples R China
[2] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China
[3] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 250014, Shandong, Peoples R China
[4] King Khalid Univ, Coll Sci, Dept Chem, Abha 61413, Saudi Arabia
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2024年 / 14卷 / 01期
关键词：
ZINC;
D O I：
10.1039/d3cy01176c
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Electrocatalytic reduction of nitrite (NO2-) offers an eco-friendly and sustainable strategy for synthesizing valuable ammonia (NH3) while simultaneously removing NO2-. Nevertheless, the complexity of the six-electron transfer reaction involved can hamper NH3 production and faradaic efficiency (FE), necessitating the quest for high-performance electrocatalysts. In this study, we introduce ZnFe2O4 nanosheet arrays on nickel foam (ZnFe2O4/NF) as an efficient electrocatalyst for the reduction of NO2- to NH3. ZnFe2O4/NF demonstrates an impressive NH3 yield of 588.58 mu mol h(-1) cm(-2) and a remarkable FE of 95.7% at -0.6 V in 0.1 M NaOH containing 0.1 M NO2-. Furthermore, it exhibits robust stability and durability throughout extended electrolysis and continuous cycling tests.
引用
收藏
页码：57 / 61
页数：5
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