Ultrastable hydrogen evolution electrocatalyst derived from phosphide postmodified metal-organic frameworks

被引：76
作者：
Cheng, Yuanhui [1 ]
Guo, Jianing [1 ]
Huang, Yan [1 ]
Liao, Zhijian [1 ]
Xiang, Zhonghua [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China
来源：
NANO ENERGY | 2017年 / 35卷
基金：
北京市自然科学基金;
关键词：
Hydrogen evolution reaction; Electrocatalyst; Metal phosphide; Doped carbon; OXYGEN REDUCTION REACTION; EFFICIENT ELECTROCATALYST; MOLYBDENUM PHOSPHIDE; GENERATING HYDROGEN; ASTERISK-ASTERISK; NEUTRAL SOLUTIONS; CARBON NANOTUBES; NANOPARTICLES; WATER; PERFORMANCE;
D O I：
10.1016/j.nanoen.2017.03.028
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：
Developing non-precious metal catalyst with high activity, good stability and low cost for electrocatalytic hydrogen evolution reaction (HER) is critical for hydrogen product from water splitting. Here, we proposed a facile and effective approach to in situ synthesize highly efficient and ultrastable iron phosphide hybrids anchored inside a hollow N-P codoped carbon derived from MIL-101-NH2-Fe-P (not only acting as multifunctional precursor but also nanoscale confined space during pyrolysis) via one-step method for HER. The newly developed FexP@NPC catalyst exhibits high electrocatalytic activity and shows a nearly constant voltage with only less 0.1% increase at 10 mA cm(-2) after 90 h in full water splitting cell with high Faradaic efficiency of near 100% and keep very similar level even after shelving 10 days.
引用
收藏
页码：115 / 120
页数：6
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