Shuang Gao , Zhuo Wang , Ping Nie , Juan Jian , Hairui Wang , Fen Yao , Limin Chang
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引用次数: 0
Abstract
The development of non-precious metal overall water splitting electrocatalysts under high current density is of utmost importance in feasible water splitting technology. Herein, we present an ambient temperature sulfuration strategy through in situ construction of iron nickel sulfide nanosheets vertically on 3D microporous iron foam. The synthesis conditions are simple and conducive to large-scale production. The FeNiS/IF nanosheets exhibit outstanding performance towards the HER and OER at large current densities, even in the order of 1000 mA cm−2. Density functional theory calculations show that FeNiS/IF as a bimetallic sulfide exhibits superior HER activity in alkaline media due to the optimization of ΔGH* and a more favorable water adsorption process.
开发高电流密度下的非贵金属整体水分离电催化剂对于可行的水分离技术至关重要。在此,我们提出了一种通过在三维微孔铁泡沫上垂直原位构建硫化铁镍纳米片的常温硫化策略。合成条件简单,有利于大规模生产。FeNiS/IF 纳米片在大电流密度(甚至 1000 mA cm-2 量级)条件下表现出卓越的 HER 和 OER 性能。密度泛函理论计算表明,FeNiS/IF 作为一种双金属硫化物,由于优化了 ΔGH* 和更有利的水吸附过程,在碱性介质中表现出更高的 HER 活性。
期刊介绍:
A multidisciplinary journal focusing on cutting edge research across all fundamental science and technological aspects of catalysis.
Editor-in-chief: Bert Weckhuysen
Impact factor: 5.0
Time to first decision (peer reviewed only): 31 days