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Construction of Pd-Zn dual sites to enhance the performance for ethanol electro-oxidation reaction

Author

Listed:
  • Yajun Qiu

    (Tsinghua University)

  • Jian Zhang

    (Wenzhou University)

  • Jing Jin

    (Beijing University of Chemical Technology)

  • Jiaqiang Sun

    (Chinese Academy of Sciences)

  • Haolin Tang

    (Wuhan University of Technology)

  • Qingqing Chen

    (Anhui Normal University)

  • Zedong Zhang

    (Tsinghua University)

  • Wenming Sun

    (China Agricultural University)

  • Ge Meng

    (Wenzhou University)

  • Qi Xu

    (Tsinghua University)

  • Youqi Zhu

    (Beijing Institute of Technology)

  • Aijuan Han

    (Beijing University of Chemical Technology)

  • Lin Gu

    (Chinese Academy of Sciences)

  • Dingsheng Wang

    (Tsinghua University)

  • Yadong Li

    (Tsinghua University)

Abstract

Rational design and synthesis of superior electrocatalysts for ethanol oxidation is crucial to practical applications of direct ethanol fuel cells. Here, we report that the construction of Pd-Zn dual sites with well exposure and uniformity can significantly improve the efficiency of ethanol electro-oxidation. Through synthetic method control, Pd-Zn dual sites on intermetallic PdZn nanoparticles, Pd-Pd sites on Pd nanoparticles and individual Pd sites are respectively obtained on the same N-doped carbon coated ZnO support. Compared with Pd-Pd sites and individual Pd sites, Pd-Zn dual sites display much higher activity for ethanol electro-oxidation, exceeding that of commercial Pd/C by a factor of ~24. Further computational studies disclose that Pd-Zn dual sites promote the adsorption of ethanol and hydroxide ion to optimize the electro-oxidation pathway with dramatically reduced energy barriers, leading to the superior activity. This work provides valuable clues for developing high-performance ethanol electro-oxidation catalysts for fuel cells.

Suggested Citation

  • Yajun Qiu & Jian Zhang & Jing Jin & Jiaqiang Sun & Haolin Tang & Qingqing Chen & Zedong Zhang & Wenming Sun & Ge Meng & Qi Xu & Youqi Zhu & Aijuan Han & Lin Gu & Dingsheng Wang & Yadong Li, 2021. "Construction of Pd-Zn dual sites to enhance the performance for ethanol electro-oxidation reaction," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25600-9
    DOI: 10.1038/s41467-021-25600-9
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    Cited by:

    1. Pu Wang & Xingyu Zhang & Run Shi & Jiaqi Zhao & Geoffrey I. N. Waterhouse & Junwang Tang & Tierui Zhang, 2024. "Photocatalytic ethylene production by oxidative dehydrogenation of ethane with dioxygen on ZnO-supported PdZn intermetallic nanoparticles," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    2. Veeramani, Krishnan & Janani, Gnanaprakasam & Kim, Joonyoung & Surendran, Subramani & Lim, Jaehyoung & Jesudass, Sebastian Cyril & Mahadik, Shivraj & lee, Hyunjung & Kim, Tae-Hoon & Kim, Jung Kyu & Si, 2023. "Hydrogen and value-added products yield from hybrid water electrolysis: A critical review on recent developments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 177(C).

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