Fe(III) grafted MoO3 nanorods for effective electrocatalytic fixation of atmospheric N2 to NH3

被引：22

作者：

Li, Tingshuai ^{[1
]}

Xia, Jiaojiao ^{[1
]}

Xian, Haohong ^{[1
]}

Chen, Qiru ^{[1
]}

Xu, Ke ^{[1
]}

Gu, Yang ^{[1
]}

Luo, Yonglan ^{[2
]}

Liu, Qian ^{[2
]}

Guo, Haoran ^{[3
]}

Traversa, Enrico ^{[1
]}

机构：

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

[2] Chengdu Univ, Inst Adv Study, Chengdu 610106, Sichuan, Peoples R China

[3] Univ Chinese Acad Sci, Sch Chem Sci, Yuquan Rd, Beijing 100049, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2022年 / 47卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Electrocatalytic nitrogen reduction; Electrocatalyst; Nanorods; Density functional theory; AMBIENT CONDITIONS; NITROGEN; NANOSHEETS; AMMONIA; NANOPARTICLES; REDUCTION; VACANCIES;

D O I：

10.1016/j.ijhydene.2021.10.263

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：

Electrocatalytic nitrogen reduction reaction (ENRR) offers a carbon-neutral process to fix nitrogen into ammonia, but its feasibility depends on the development of highly efficient electrocatalysts. Herein, we report that Fe ion grafted on MoO3 nanorods synthesized by an impregnation technique can efficiently enhance the electron harvesting ability and the selectivity of H+ during the NRR process in neutral electrolyte. In 0.1 M Na2SO4 solution, the electrocatalyst exhibited a remarkable NRR activity with an NH3 yield of 9.66 mu g h(-1) mg(cat)(-1) and a Faradaic efficiency (FE) of 13.1%, far outperforming the ungrafted MnO3. Density functional theory calculations revealed that the Fe sites are major activation centers along the alternating pathway. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：3550 / 3555

页数：6

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