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Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells

Author

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  • Chaozhong Li

    (Guizhou University
    Tsinghua University)

  • Qiang Yuan

    (Guizhou University
    Tsinghua University)

  • Bing Ni

    (Tsinghua University)

  • Ting He

    (Tsinghua University)

  • Siming Zhang

    (Tsinghua University)

  • Yong Long

    (Tsinghua University)

  • Lin Gu

    (Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics)

  • Xun Wang

    (Tsinghua University)

Abstract

Recently, the development of high-performance non-platinum electrocatalysts for fuel cell applications has been gaining attention. Palladium-based nanoalloys are considered as promising candidates to substitute platinum catalysts for cathodic and anodic reactions in fuel cells. Here, we develop a facile route to synthesize dendritic palladium–copper–cobalt trimetallic nanoalloys as robust multifunctional electrocatalysts for oxygen reduction and formic acid oxidation. To the best of our knowledge, the mass activities of the dendritic Pd59Cu30Co11 nanoalloy toward oxygen reduction and formic acid oxidation are higher than those previously reported for non-platinum metal nanocatalysts. The Pd59Cu30Co11 nanoalloys also exhibit superior durability for oxygen reduction and formic acid oxidation as well as good antimethanol/ethanol interference ability compared to a commercial platinum/carbon catalyst. The high performance of the dendritic Pd59Cu30Co11 nanoalloys is attributed to a combination of effects, including defects, a synergistic effect, change of d-band center of palladium, and surface strain.

Suggested Citation

  • Chaozhong Li & Qiang Yuan & Bing Ni & Ting He & Siming Zhang & Yong Long & Lin Gu & Xun Wang, 2018. "Dendritic defect-rich palladium–copper–cobalt nanoalloys as robust multifunctional non-platinum electrocatalysts for fuel cells," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06043-1
    DOI: 10.1038/s41467-018-06043-1
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    Cited by:

    1. Zhi Wen Chen & Jian Li & Pengfei Ou & Jianan Erick Huang & Zi Wen & LiXin Chen & Xue Yao & GuangMing Cai & Chun Cheng Yang & Chandra Veer Singh & Qing Jiang, 2024. "Unusual Sabatier principle on high entropy alloy catalysts for hydrogen evolution reactions," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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