Stable Pd-Cu Hydride Catalyst for Efficient Hydrogen Evolution

Yanyan Jia, Tzu Hsi Huang, Shuan Lin, Lisheng Guo, Yu Min Yu, Jeng Han Wang, Kuan Wen Wang, Sheng Dai

研究成果: 雜誌貢獻期刊論文同行評審

36 引文 斯高帕斯(Scopus)


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.

頁(從 - 到)1391-1397
期刊Nano Letters
出版狀態已出版 - 9 2月 2022


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