Article Ultra-stable and highly reactive colloidal gold nanoparticle catalysts protected using multi-dentate metal oxide nanoclusters

Kang Xia ORCID ; Takafumi Yatabe ORCID ; Kentaro Yonesato ; Soichi Kikkawa ; Seiji Yamazoe ORCID ; Ayako Nakata SAMURAI ORCID ; Ryo Ishikawa ORCID ; Naoya Shibata ORCID ; Yuichi Ikuhara ORCID ; Kazuya Yamaguchi ORCID ; Kosuke Suzuki ORCID

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Kang Xia, Takafumi Yatabe, Kentaro Yonesato, Soichi Kikkawa, Seiji Yamazoe, Ayako Nakata, Ryo Ishikawa, Naoya Shibata, Yuichi Ikuhara, Kazuya Yamaguchi, Kosuke Suzuki. Ultra-stable and highly reactive colloidal gold nanoparticle catalysts protected using multi-dentate metal oxide nanoclusters. Nature Communications. 2024, 15 (), 851. https://doi.org/10.1038/s41467-024-45066-9
SAMURAI

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(abstract)

Owing to their remarkable properties, gold nanoparticles are applied in diverse fields, including catalysis, electronics, energy conversion and sensors. However, for catalytic applications of colloidal gold nanoparticles, the trade-off between their reactivity and stability is a significant concern. Here we report a universal approach for preparing stable and reactive colloidal small (~3 nm) gold nanoparticles by using multi-dentate polyoxometalates as protecting agents in non-polar solvents. These nanoparticles exhibit exceptional stability even under conditions of high concentration, long-term storage, heating and addition of bases. Moreover, they display excellent catalytic performance in various oxidation reactions of organic substrates using molecular oxygen as the sole oxidant. Our findings highlight the ability of inorganic multi-dentate ligands with structural stability and robust steric and electronic effects to confer stability and reactivity upon gold nanoparticles. This approach can be extended to prepare metal nanoparticles other than gold, enabling the design of novel nanomaterials with promising applications.

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Keyword: gold nanoparticles, multi-dentate metal oxide nanoclusters, colloidal gold nanoparticle catalysts, polyoxometalates

Date published: 2024-02-06

Publisher: Springer Science and Business Media LLC

Journal:

  • Nature Communications (ISSN: 20411723) vol. 15 851

Funding:

  • MEXT | JST | Precursory Research for Embryonic Science and Technology JPMJPR18T7
  • MEXT | JST | Precursory Research for Embryonic Science and Technology JPMJPR227A
  • MEXT | JST | Precursory Research for Embryonic Science and Technology JPMJPR19T9
  • MEXT | Japan Society for the Promotion of Science KAKENHI 22H04971
  • MEXT | JST | Precursory Research for Embryonic Science and Technology JPMJPR20T4
  • MEXT | Japan Science and Technology Agency JPMJFR213M
  • MEXT | Japan Science and Technology Agency JPMJFR2033

Manuscript type: Publisher's version (Version of record)

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First published URL: https://doi.org/10.1038/s41467-024-45066-9

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Updated at: 2024-11-28 16:30:25 +0900

Published on MDR: 2024-11-28 16:30:25 +0900

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