期刊
MATERIALS
卷 14, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/ma14061473
关键词
overall water splitting; transition metal phosphide; nitrogen doped carbon; polyaniline; electrocatalyst
类别
资金
- Natural Science Foundation of Guangdong Province [2019A1515011727]
- Open Fund of the Guangdong Provincial Key Laboratory of Advance Energy Storage Materials
- National Key R&D Program of China [2018YFB1502600]
- Fundamental Research Funds for the Central Universities [21620329]
- Postdoctoral Research Foundation of China [2020M673071]
The Fe(III) ion-assisted aniline polymerization strategy was used to embed bimetallic CoFeP nanospheres into a nitrogen-doped porous carbon framework to prepare CoFeP-NC with excellent catalytic performance for hydrogen evolution reaction. The CoFeP-NC shows low overpotentials for both HER and OER in acidic and alkaline media, demonstrating great potential for overall water splitting applications.
It remains an urgent demand and challenging task to design and fabricate efficient, stable, and inexpensive catalysts toward sustainable electrochemical water splitting for hydrogen production. Herein, we explored the use of Fe(III) ion-assisted aniline polymerization strategy to embed bimetallic CoFeP nanospheres into the nitrogen-doped porous carbon framework (referred CoFeP-NC). The as-prepared CoFeP-NC possesses excellent hydrogen evolution reaction (HER) performance with the small overpotential (eta(10)) of 81 mV and 173 mV generated at a current density of 10 mA cm(-2) in acidic and alkaline media, respectively. Additionally, it can also efficiently catalyze water oxidation (OER), which shows an ideal overpotential (eta(10)) of 283 mV in alkaline electrolyte (pH = 14). The remarkable catalytic property of CoFeP-NC mainly stems from the strong synergetic effects of CoFeP nanospheres and carbon network. On the one hand, the interaction between the two can make better contact between the electrolyte and the catalyst, thereby providing a large number of available active sites. On the other hand, it can also form a network to offer better durability and electrical conductivity (8.64 x 10(-1) S cm(-1)). This work demonstrates an efficient method to fabricate non-noble electrocatalyst towards overall water splitting, with great application prospect.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据