Ru nanoparticles encapsulated in ZIFs-derived porous N-doped hierarchical carbon nanofibers for enhanced hydrogen evolution reaction

被引：23
作者：
Fan, Libing [1 ,2 ]
Meng, Tian [2 ,3 ]
Li, Qun [2 ,3 ]
Wang, Dewen [2 ,3 ]
Xing, Zhicai [2 ]
Wang, Erkang [1 ,2 ,3 ]
Yang, Xiurong [2 ,3 ]
机构：
[1] Jilin Univ, Coll Chem, Changchun 130012, Jilin, Peoples R China
[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Elect Chem, Changchun 130022, Jilin, Peoples R China
[3] Univ Sci & Technol China, Sch Appl Chem & Engn, Hefei 230026, Anhui, Peoples R China
来源：
CATALYSIS SCIENCE & TECHNOLOGY | 2020年 / 10卷 / 21期
基金：
中国国家自然科学基金;
关键词：
OXYGEN REDUCTION; EFFICIENT ELECTROCATALYST; CATALYSTS; RUTHENIUM; PH; DESIGN;
D O I：
10.1039/d0cy01232g
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：
Ruthenium (Ru)-based materials have been proven to be highly efficient hydrogen evolution reaction (HER) electrocatalysts and have become the most promising candidates for replacing platinum (Pt)-based electrocatalysts. Herein, we report an easily scalable electrospinning strategy to construct nitrogen-doped carbon nanofibers with porous hierarchical structures and uniformly dispersed Ru nanoparticles (abbreviated as ES-Ru-ZIF-900). Benefiting from the porous fibrous nanoarchitecture caused by the pyrolysis of the zeolitic imidazolate framework-8, the abundant firmly immobilized Ru NPs, and the high conductivity of the N-doped carbon matrix, the resultant ES-Ru-ZIF-900 electrocatalyst exhibits an extraordinary HER performance. ES-Ru-ZIF-900 only needs an overpotential of 21 mV to drive the current density of 10 mA cm(-2), and possesses long durability for over 14 h in 1.0 M KOH, superior to Pt/C and most of the non-Pt based electrocatalysts. This work offers a universal and efficient synthetic strategy for preparing metal-based nitrogen-doped carbon hybrid catalysts with enhanced HER activity.
引用
收藏
页码：7302 / 7308
页数：7
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