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
收藏
页码：3673 / 3676
页数：4
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