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In situ synthesis of supported metal nanocatalysts through heterogeneous doping

Author

Listed:
  • No Woo Kwak

    (Korea Advanced Institute of Science and Technology)

  • Seung Jin Jeong

    (Korea Advanced Institute of Science and Technology)

  • Han Gil Seo

    (Korea Advanced Institute of Science and Technology)

  • Siwon Lee

    (Korea Advanced Institute of Science and Technology)

  • YeonJu Kim

    (Korea Advanced Institute of Science and Technology)

  • Jun Kyu Kim

    (Korea Advanced Institute of Science and Technology)

  • Pilgyu Byeon

    (Korea Advanced Institute of Science and Technology)

  • Sung-Yoon Chung

    (Korea Advanced Institute of Science and Technology)

  • WooChul Jung

    (Korea Advanced Institute of Science and Technology)

Abstract

Supported metal nanoparticles hold great promise for many fields, including catalysis and renewable energy. Here we report a novel methodology for the in situ growth of architecturally tailored, regenerative metal nanocatalysts that is applicable to a wide range of materials. The main idea underlying this strategy is to selectively diffuse catalytically active metals along the grain boundaries of host oxides and then to reduce the diffused metallic species to form nanoclusters. As a case study, we choose ceria and zirconia, the most recognized oxide supports, and spontaneously form various metal particles on their surface with controlled size and distribution. Metal atoms move back and forth between the interior (as cations) and the exterior (as clusters) of the host oxide lattice as the reductive and oxidative atmospheres repeat, even at temperatures below 700 °C. Furthermore, they exhibit excellent sintering/coking resistance and reactivity toward chemical/electrochemical reactions, demonstrating potential to be used in various applications.

Suggested Citation

  • No Woo Kwak & Seung Jin Jeong & Han Gil Seo & Siwon Lee & YeonJu Kim & Jun Kyu Kim & Pilgyu Byeon & Sung-Yoon Chung & WooChul Jung, 2018. "In situ synthesis of supported metal nanocatalysts through heterogeneous doping," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07050-y
    DOI: 10.1038/s41467-018-07050-y
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    Cited by:

    1. Jia Zhao & Ricardo Urrego-Ortiz & Nan Liao & Federico Calle-Vallejo & Jingshan Luo, 2024. "Rationally designed Ru catalysts supported on TiN for highly efficient and stable hydrogen evolution in alkaline conditions," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    2. Hyunmin Kim & Chaesung Lim & Ohhun Kwon & Jinkyung Oh & Matthew T. Curnan & Hu Young Jeong & Sihyuk Choi & Jeong Woo Han & Guntae Kim, 2021. "Unveiling the key factor for the phase reconstruction and exsolved metallic particle distribution in perovskites," Nature Communications, Nature, vol. 12(1), pages 1-11, December.

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