Ambient electrochemical NH3 synthesis from N2 and water enabled by ZrO2 nanoparticles

被引：64

作者：

Xu, Tong ^{[1
]}

Ma, Dongwei ^{[2
,3
]}

Li, Chengbo ^{[1
]}

Liu, Qian ^{[4
]}

Lu, Siyu ^{[5
,6
]}

Asiri, Abdullah M. ^{[7
,8
]}

Yang, Chun ^{[1
]}

Sun, Xuping ^{[4
]}

机构：

[1] Sichuan Normal Univ, Coll Chem & Mat Sci, Chengdu 610068, Peoples R China

[2] Henan Univ, Minist Educ, Key Lab Special Funct Mat, Kaifeng 475004, Henan, Peoples R China

[3] Henan Univ, Sch Mat Sci & Engn, Kaifeng 475004, Henan, Peoples R China

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

[5] Zhengzhou Univ, Green Catalysis Ctr, Zhengzhou 450001, Henan, Peoples R China

[6] Zhengzhou Univ, Coll Chem, Zhengzhou 450001, Henan, Peoples R China

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

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

来源：

CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 25期

基金：

中国国家自然科学基金;

关键词：

NITROGEN REDUCTION; AMMONIA-SYNTHESIS; FIXATION; CARBON; DINITROGEN; CATALYSTS; DESIGN; SENSOR;

D O I：

10.1039/c9cc10087c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Industrially, artifical N-2 fixation to NH3 mainly relies on the Haber-Bosch process which is operated in a harsh environment with large energy consumption and heavy serious greenhouse gas emission. Electrochemical N-2 reduction offers a carbon-neutral and energy-saving method for NH3 synthesis under ambient conditions. Herein, we demonstrate the first use of ZrO2 nanoparticles as an earth-abundant electrocatalyst for NH3 synthesis from N-2 and water under ambient conditions. In 0.1 M HCl, the electrocatalyst presents a large NH3 yield rate of 24.74 mu g h(-1) mg(cat.)(-1) with a faradaic efficiency of 5.0% at -0.45 V vs. the reversible hydrogen electrode. It also demonstrates high electrochemical stability and excellent selectivity for NH3 generation.

引用

页码：3673 / 3676

页数：4

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