Ultrasmall V8C7 nanoparticles embedded in conductive carbon for efficient electrocatalytic N2 reduction toward ambient NH3 production

被引：27

作者：

Feng, Jing ^{[1
]}

Zhu, Xiaojuan ^{[2
]}

Chen, Quanying ^{[1
]}

Xiong, Wei ^{[1
]}

Cheng, Xin ^{[1
]}

Luo, Yonglan ^{[2
]}

Alshehri, Abdulmohsen Ali ^{[3
]}

Alzahrani, Khalid Ahmed ^{[3
]}

Jiang, Zhenju ^{[1
]}

Li, Wei ^{[1
]}

机构：

[1] Xihua Univ, Sch Sci, Chengdu 610039, Sichuan, Peoples R China

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

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

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2019年 / 7卷 / 46期

关键词：

VANADIUM; AMMONIA; NANOCOMPOSITE; NANOPOWDERS; FIXATION;

D O I：

10.1039/c9ta09439c

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：

As a carbon-neutral alternative to the Haber-Bosch process, electrochemical N-2 reduction offers an eco-friendly and sustainable approach to produce NH3, but it needs active electrocatalysts for the N-2 reduction reaction (NRR). In this communication, we report that vanadium carbide nanoparticles/carbon sphere (V8C7/C) acts as a high-performance NRR electrocatalyst under ambient conditions. In 0.1 M HCl, such V8C7/C achieves a large NH3 yield of 34.62 mu g h(-1) mg(cat.)(-1) and a high faradaic efficiency of 12.20% at -0.40 V vs. the reversible hydrogen electrode. Notably, V8C7/C also shows both strong electrochemical stability and high NH3 selectivity.

引用

页码：26227 / 26230

页数：4

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