Core-Shell CuPd@NiPd Nanoparticles: Coupling Lateral Strain with Electronic Interaction toward High-Efficiency Electrocatalysis
文献类型：期刊论文
| 作者 | Liu, Danye2,4; Zeng, Qing2,4; Hu, Chaoquan1,4; Liu, Hui1,4; Chen, Dong1,4; Han, Yongsheng4; Xu, Lin3; Yang, Jun1,2,4 |
| 刊名 | ACS Catalysis
 |
| 出版日期 | 2022-08-05 |
| 卷号 | 12期号:15页码:9092-9100 |
| 关键词 | Alkalinity - Copper alloys - Electrocatalysis - Electrocatalysts - Electrolytic reduction - Electronic properties - Ethanol - Nanoparticles - Oxygen - Palladium - Palladium alloys - Shells (structures) - Substitution reactions |
| DOI | 10.1021/acscatal.2c02274 |
| 英文摘要 | Geometric structure and chemical composition are two critical factors that determine the electronic properties of an active metal favorable for a given catalytic reaction. In this scenario, we develop a wet-chemistry method to construct core-shell nanoentities consisting of a CuPd alloy core and a NiPd alloy shell, termed as CuPd@NiPd, which involves the synthesis of CuNi alloy seeds, and a subsequent galvanic replacement reaction with Pd2+ precursors in an organic medium at elevated temperature. In these unique core-shell nanostructures, the compressive lattice strain between core and shell regions and the electronic interaction between Pd and transitional elements could be coupled together to lead to a downshift of the d-band center of Pd sites, thus endowing them with good activity for catalyzing ethanol oxidation reaction (EOR) and oxygen reduction reaction (ORR). In particular, at an appropriate Pd/Cu precursor ratio of 1/1, the as-prepared core-shell CuPd@NiPd nanoparticles exhibit a mass activity of 5.1 A mg-1 for EOR and a half-wave potential of 0.91 V for ORR at room temperature in an alkaline medium, outperforming alloy CuPd, NiPd counterparts, commercial Pd/C, and the vast majority of recently reported Pd-based electrocatalysts. 漏 2022 American Chemical Society. |
| 学科主题 | Binary Alloys |
| 项目编号 | The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China (22075290 and 21972068), Beijing Natural Science Foundation (Z200012), State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences (MPCS-2021-A-05), and Nanjing IPE Institute of Green Manufacturing Industry (E0010725). |
| 出版者 | American Chemical Society |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61288]  |
| 作者单位 | 1.Nanjing IPE Institute of Green Manufacturing Industry, Jiangsu, Nanjing; 211100, China 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing; 100049, China 3.School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing; 210023, China 4.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Liu, Danye,Zeng, Qing,Hu, Chaoquan,et al. Core-Shell CuPd@NiPd Nanoparticles: Coupling Lateral Strain with Electronic Interaction toward High-Efficiency Electrocatalysis[J]. ACS Catalysis,2022,12(15):9092-9100. |
| APA | Liu, Danye.,Zeng, Qing.,Hu, Chaoquan.,Liu, Hui.,Chen, Dong.,...&Yang, Jun.(2022).Core-Shell CuPd@NiPd Nanoparticles: Coupling Lateral Strain with Electronic Interaction toward High-Efficiency Electrocatalysis.ACS Catalysis,12(15),9092-9100. |
| MLA | Liu, Danye,et al."Core-Shell CuPd@NiPd Nanoparticles: Coupling Lateral Strain with Electronic Interaction toward High-Efficiency Electrocatalysis".ACS Catalysis 12.15(2022):9092-9100. |
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