Mo doped Ru-based cluster to promote alkaline hydrogen evolution with ultra-low Ru loading  

作　　者：Haibin Yang Duowen Ma Yang Li Qinghe Zhao Feng Pan Shisheng Zheng Zirui Lou 

机构地区：[1]School of Advanced Materials,Peking University Shenzhen Graduate School,Shenzhen,Guangdong,518055,PR China [2]Hydrogen Energy Institute,Zhejiang University,Hangzhou,310000,PR China

出　　处：《Chinese Journal of Structural Chemistry》2023年第11期6-12,共7页结构化学（英文）

基　　金：support from the Shenzhen Science and Technology Research Grant(No.JCYJ20200109140416788);the Shenzhen Fundamental Research Program(No.GXWD20201231165807007-20200807111854001);the Natural Science Foundation of Shenzhen(JCYJ20190813110605381);the National Natural Science Foundation of China(52102201).

摘　　要：Green hydrogen energy developed through electrochemistry is one of the solutions to current energy problems.The less noble metal ruthenium(Ru)plays an important role in alkaline electrocatalytic hydrogen evolution reaction(HER)as an effective electrocatalyst.Nevertheless,the high cost(>110 RMB per gram)hinders the large-scale application of Ru in industrial hydrogen production.Moreover,the strong adsorption of OH*in-termediates over Ru limits the electrocatalytic performance in alkaline HER.Here,we report the Mo-doped Ru nanocluster embedded on N-doped carbon framework(RuMo/NC)as alkaline HER catalyst,which shows excellent catalytic performance with an overpotential of 24.2 mV to reach 10 mA cm-2 with only 0.4 wt%o of Ru,much lower than that of most reported Ru-based catalysts.DFT calculations reveal the introduction of Mo has improved the activity by alleviating the poisoning effect of OH*over Ru in HER.Through fully utilizing Ru in the catalyst,this work marks a step forward in the development of Ru-based catalysts in alkaline HER.

关 键 词：Hydrogen evolution reaction Ru-based electrocatalyst OH*poison DFT calculation 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]