文献类型：期刊文献

英文题名：Stable Pd-Cu Hydride Catalyst for Efficient Hydrogen Evolution

作者：Jia, Yanyan[1,2];Huang, Tzu-Hsi[3];Lin, Shuan[3];Guo, Lisheng[1,2];Yu, Yu-Min[3];Wang, Jeng-Han[4];Wang, Kuan-Wen[3,5];Dai, Sheng[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Joint Int Res Lab Precis Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr,Front, Shanghai 200237, Peoples R China;[3]Natl Cent Univ, Inst Mat Sci & Engn, Taoyuan 320, Taiwan;[4]Natl Taiwan Normal Univ, Dept Chem, Taipei 116, Taiwan;[5]Natl Taiwan Univ Sci & Technol, Dept Mat Sci & Engn, Taipei 10607, Taiwan

年份：2022

卷号：22

期号：3

起止页码：1391

外文期刊名：NANO LETTERS

收录：;EI(收录号：20220611606227);WOS:【SCI-EXPANDED(收录号:WOS:000777171600068)】；

基金：This work was supported by the National Natural Science Foundation of China (Grant 22109043), the Shanghai Risingstar Program (20QA1402400), the Fundamental Research Funds for the Central Universities, and the Ministry of Science and Technology, Taiwan (MOST 110-2221-E-008-061-MY3). S.D. thanks the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, Shanghai Municipal Science and Technology Major Project (Grant No. 2018SHZDZX03), and the Program of Introducing Talents of Discipline to Universities (B16017). Additional support was provided by the Frontiers Science Center for Materiobiology and Dynamic Chemistry and the Feringa Nobel Prize Scientist Joint Research Center at East China University of Science and Technology.

语种：英文

外文关键词：Pd-based catalysts; Pd-Cu hydrides; hydrogen evolution reaction; electrocatalysis; hydrogen adsorption free energy

摘要：Pd has been regarded as one of the alternatives to Pt as a promising hydrogen evolution reaction (HER) catalyst. Strategies including Pd-metal alloys (Pd-M) and Pd hydrides (PdHx) have been proposed to boost HER performances. However, the stability issues, e.g., the dissolution in Pd-M and the hydrogen releasing in PdHx, restrict the industrial application of Pd-based HER catalysts. We here design and synthesize a stable Pd-Cu hydride (PdCu0.2H0.43) catalyst, combining the advantages of both Pd-M and PdHx structures and improving the HER durability simultaneously. The hydrogen intercalation is realized under atmospheric pressure (1.0 atm) following our synthetic approach that imparts high stability to the Pd-Cu hydride structure. The obtained PdCu0.2H0.43 catalyst exhibits a small overpotential of 28 mV at 10 mA/cm(2), a low Tafel slope of 23 mV/dec, and excellent HER durability due to its appropriate hydrogen adsorption free energy and alleviated metal dissolution rate.