FeOOH quantum dots decorated graphene sheet: An efficient electrocatalyst for ambient N2 reduction

被引：52

作者：

Zhu, Xiaojuan ^{[1
,2
]}

Zhao, Jinxiu ^{[1
]}

Ji, Lei ^{[1
]}

Wu, Tongwei ^{[1
]}

Wang, Ting ^{[1
]}

Gao, Shuyan ^{[3
]}

Alshehri, Abdulmohsen Ali ^{[4
]}

Alzahrani, Khalid Ahmed ^{[4
]}

Luo, Yonglan ^{[2
]}

Xiang, Yimo ^{[5
]}

Zheng, Baozhan ^{[6
]}

Sun, Xuping ^{[1
]}

机构：

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

[2] China West Normal Univ, Chem Synth & Pollut Control Key Lab Sichuan Prov, Coll Chem & Chem Engn, Nanchong 637002, Peoples R China

[3] Henan Normal Univ, Sch Mat Sci & Engn, Xinxiang 453007, Henan, Peoples R China

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

[5] 12 Middle Sch, Chengdu 610041, Sichuan, Peoples R China

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

来源：

NANO RESEARCH | 2020年 / 13卷 / 01期

基金：

中国国家自然科学基金;

关键词：

FeOOH quantum dots decorated graphene sheet; N-2 reduction reaction; NH3; electrosynthesis; ambient conditions; AMMONIA-SYNTHESIS; ATMOSPHERIC-PRESSURE; OXIDE NANOCOMPOSITES; LOW-TEMPERATURE; NITROGEN; WATER; ADSORPTION; NH3; NANOPARTICLES; PERFORMANCE;

D O I：

10.1007/s12274-019-2600-8

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：

Electrochemical N-2 reduction offers a promising alternative to the Haber-Bosch process for sustainable NH3 synthesis at ambient conditions, but it needs efficient catalysts for the N-2 reduction reaction (NRR). Here, we report that FeOOH quantum dots decorated graphene sheet acts as a superior catalyst toward enhanced electrocatalytic N-2 reduction to NH3 under ambient conditions. In 0.1 M LiClO4, this hybrid attains a large NH3 yield rate and a high Faradaic efficiency of 27.3 mu g center dot h(-1)center dot mg(cat.)(-1) and 14.6% at -0.4 V vs. reversible hydrogen electrode, respectively, rivalling the current efficiency of all Fe-based NRR electrocatalysts in aqueous media. It also shows strong durability during the electrolytic process.

引用

页码：209 / 214

页数：6

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