Ambient NH3 synthesis via electrochemical reduction of N2 over cubic sub-micron SnO2 particles

被引：135

作者：

Zhang, Ling ^{[1
,2
]}

Ren, Xiang ^{[1
]}

Luo, Yonglan ^{[1
]}

Shi, Xifeng ^{[3
]}

Asiri, Abdullah M. ^{[4
,5
]}

Li, Tingshuai ^{[6
]}

Sun, Xuping ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China

[2] Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China

[3] Shandong Normal Univ, Coll Chem Chem Engn & Mat Sci, Jinan 273165, Shandong, Peoples R China

[4] King Abdulaziz Univ, Dept Chem, Fac Sci, POB 80203, Jeddah 21589, Saudi Arabia

[5] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, POB 80203, Jeddah 21589, Saudi Arabia

[6] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Sichuan, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2018年 / 54卷 / 92期

基金：

中国国家自然科学基金;

关键词：

AMMONIA-SYNTHESIS; ATMOSPHERIC-PRESSURE; HIGH SELECTIVITY; HIGH-EFFICIENCY; NITROGEN; CARBON; NANOSHEETS; CATALYSTS; CO2; TEMPERATURE;

D O I：

10.1039/c8cc06524a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Electrochemical N-2-to-NH3 fixation under ambient conditions is emerging as a promising alternative to the energy-intensive and CO2-emitting Haber-Bosch process. However, this process involves difficulty in N-2 activation, underlining the demand of electrocatalysts for the N-2 reduction reaction (NRR). In this work, cubic sub-micron SnO2 particles on carbon cloth (SnO2/CC) are proposed as an efficient NRR electrocatalyst for ambient N-2 conversion to NH3 with excellent selectivity. Electrochemical tests reveal that SnO2/CC attains a large NH3 yield of 1.47 x 10(-10) mol s(-1) cm(-2) at -0.8 V vs. reversible hydrogen electrode (RHE) and a high Faradaic efficiency of 2.17% at -0.7 V vs. RHE in 0.1 M Na2SO4, outperforming most reported aqueous-based NRR electrocatalysts. Notably, it also shows strong electrochemical stability.

引用

页码：12966 / 12969

页数：4

共 53 条

[1]

[Anonymous], ADV ENERGY MAT

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