@article{e800d5c468b940c58928d9609902d02b,
title = "Stable Pd-Cu Hydride Catalyst for Efficient Hydrogen Evolution",
abstract = "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/cm2, 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. ",
keywords = "Pd-Cu hydrides, Pd-based catalysts, electrocatalysis, hydrogen adsorption free energy, hydrogen evolution reaction",
author = "Yanyan Jia and Huang, {Tzu Hsi} and Shuan Lin and Lisheng Guo and Yu, {Yu Min} and Wang, {Jeng Han} and Wang, {Kuan Wen} and Sheng Dai",
note = "Funding Information: This work was supported by the National Natural Science Foundation of China (Grant 22109043), the Shanghai Rising-star 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. Publisher Copyright: {\textcopyright} 2022 American Chemical Society.",
year = "2022",
month = feb,
day = "9",
doi = "10.1021/acs.nanolett.1c04840",
language = "English",
volume = "22",
pages = "1391--1397",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "3",
}