文献类型：期刊文献

英文题名：Confining ruthenium nanoparticles in MOF pores for high-performance hydrogen evolution reaction

作者：Li, Shulin[1,2];Zhou, Zhaoxin[1];Liu, Guanqiao[1];Zhang, Qi[1];Gao, Yunfei[3];Zhu, He[1];Zhu, Shiping[1]

机构：[1]Chinese Univ Hong Kong, Sch Sci & Engn, Shenzhen 518172, Guangdong, Peoples R China;[2]Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China;[3]East China Univ Sci & Technol, Inst Clean Coal Technol, Shanghai 200237, Peoples R China

年份：2024

卷号：493

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20242416227697);WOS:【SCI-EXPANDED(收录号:WOS:001251219100001)】；

基金：We sincerely thank the National Natural Science Foundation of China (22005260 & 22078276), Shenzhen Science and Technology Program (KQTD20170810141424366), Program for Guangdong Introducing Innovative and Entrepreneurial Teams (2017ZT07C291), and Shenzhen Key Laboratory of Advanced Materials Product Engineering (ZDSYS20190911164401990) for supporting this research. He Zhu thanks the University Development Fund (UDF01001057) for supporting his research at CUHK-Shenzhen.

语种：英文

外文关键词：Metal -organic frameworks (MOF); Ru nanoparticles; Pore confinement effect; Host -guest interactions; Hydrogen evolution reaction

摘要：The exploration of low-cost catalysts for hydrogen evolution reaction holds great significance in application. Ruthenium nanoparticles (Ru NPs)-based composites have emerged as a type of promising candidates. This study focuses on the impact of metal-organic framework (MOF) pore structure on the growth of Ru NPs, as well as the resulting effects on their electrocatalytic properties using two Ru@MOFs electrodes (Ru@Ni-BPM/NF and Ru@Ni-BPDC/NF). 3D Ni-BPM can effectively load Ru NPs with uniform and controlled size, while 2D Ni-BPDC leads to uncontrolled growth of Ru NPs. Consequently, Ru@Ni-BPM/NF shows superior catalytic performance with a smaller overpotential of 12 mV at 10 mA cm-2 and a lower Tafel slope of 40.3 mV dec-1, outperforming Ru@Ni-BPDC/NF and commercial Pt/C in alkaline media. Meanwhile, the pore confinement effect of Ni-BPM significantly reduces the aggregation of Ru NPs during extended stability testing, guaranteeing the structural integrity of the electrode and sustained exposure of the active sites.