Ruthenium doped Ni2P nanosheet arrays for active hydrogen evolution in neutral and alkaline water,Sustainable Energy & Fuels

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Ruthenium doped Ni2P nanosheet arrays for active hydrogen evolution in neutral and alkaline water
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2020-01-28 , DOI: 10.1039/d0se00010h
Chengbo Wei _{1,

2,

3,

4,

5} , Xiaoming Fan _{1,

2,

3,

4,

5} , Xue Deng _{1,

2,

3,

4,

5} , Linzheng Ma _{6,

7,

8,

9} , Xiao Zhang _{1,

2,

3,

4,

5} , Qingyun Liu _{6,

7,

8,

9} , Jinxue Guo _{1,

2,

3,

4,

5}

Affiliation

Efficiently generating hydrogen in neutral solution is essentially important for electrocatalysts toward practical application of water splitting; however, most of the catalysts show promising activity only in acidic or alkaline media. Herein, a surface modulation method is developed via doping Ru onto the surface of a Ni₂P nanosheet array supported on nickel foam (Ru-Ni₂P/NF) to activate the robust hydrogen evolution activity. The Ru species achieve optimized surface chemistry for catalysis, including boosted intrinsic activity, improved catalytic center density, and enhanced kinetics. The as-obtained electrode exhibits Pt-like catalytic activity, as well as good stability in both neutral and alkaline solution. Exploring efficient and wide-pH electrocatalysts by such surface chemistry modulation would be of great value for the development of advanced materials for energy conversion.

中文翻译：

钌掺杂的Ni2P纳米片阵列可在中性和碱性水中释放出活性氢

在中性溶液中高效产生氢对于电催化剂的实际应用至关重要然而，大多数催化剂仅在酸性或碱性介质中显示出有希望的活性。本文中，通过将Ru掺杂到泡沫镍（Ru-Ni _2）上支撑的Ni ₂ P纳米片阵列的表面上，开发了一种表面调制方法。P / NF）激活强大的析氢活性。钌物种实现了用于催化的优化表面化学，包括增强的内在活性，改善的催化中心密度和增强的动力学。如此获得的电极在中性和碱性溶液中均表现出类似Pt的催化活性以及良好的稳定性。通过这种表面化学调节来探索高效且pH宽的电催化剂对于开发用于能量转换的先进材料将具有巨大的价值。

更新日期：2020-01-28

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