Ru基纳米团簇促进碱性析氢反应

Ru-Based Nanoclusters Promote Alkaline Hydrogen Evolution Reaction

在碱性条件下合理构建和设计一种新型高效析氢反应(HER)电催化剂是实现经济可持续制氢的关键挑战。通过简单、快速、无溶剂微波法,成功合成了Ru@CNT(CNT=碳纳米管)纳米团簇材料。在碱性介质中,该纳米团簇表现出优异的析氢催化活性。其中,Ru@CNT(90 s)的过电位为16 mV(10 mA·cm^(-2)),Tafel斜率为25.5 mV·dec^(-1)。在过电位为100 mV时,TOF值达到13.5 s^(-1),是目前所报道的贵金属基催化剂中最好的HER催化剂之一。

The rational construction and design of a new type of high-efficiency hydrogen evolution reaction(HER)electrocatalyst under alkaline conditions is a key challenge to achieve economic and sustainable hydrogen production.Ru@CNT(CNT=carbon nanotube)nanocluster materials were successfully synthesized by a simple,rapid and solvent-free microwave method.In alkaline media,the nanoclusters exhibit excellent hydrogen evolution catalytic activity.Among them,the overpotential of Ru@CNT(90 s)was 16 mV(10 mA·cm^(-2))and the Tafel slope was 25.5 mV·dec^(-1).A TOF value of 13.5 s^(-1) was achieved at an overpotential of 100 mV,which is one of the best performance catalysts among the noble metal-based electrocatalysts reported so far.