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Significant Enhancement of Hydrogen Evolution Reaction Activity by Negatively Charged Pt through Light Doping of W.
Kobayashi, Daiya; Kobayashi, Hirokazu; Wu, Dongshuang; Okazoe, Shinya; Kusada, Kohei; Yamamoto, Tomokazu; Toriyama, Takaaki; Matsumura, Syo; Kawaguchi, Shogo; Kubota, Yoshiki; Aspera, Susan Meñez; Nakanishi, Hiroshi; Arai, Shigebumi; Kitagawa, Hiroshi.
Afiliação
  • Kobayashi D; Nippon Soda Co. Ltd., Chiba Research Center, 12-54 Goi-minamikaigan, Ichihara, Chiba 290-0045, Japan.
  • Kobayashi H; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Wu D; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Okazoe S; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Kusada K; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Yamamoto T; Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan.
  • Toriyama T; Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Matsumura S; Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Kawaguchi S; Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Kubota Y; Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Aspera SM; Kyushu University and the Ultramicroscopy Research Center, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Nakanishi H; INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
  • Arai S; Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan.
  • Kitagawa H; Department of Physical Science, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
J Am Chem Soc ; 142(41): 17250-17254, 2020 Oct 14.
Article em En | MEDLINE | ID: mdl-32997498
ABSTRACT
We report novel PtW solid-solution nanoparticles (NPs) produced through electrochemical cleaning of core/shell PtW@WO3 NPs. The resulting PtW NPs achieved a record hydrogen evolution reaction (HER) performance as a class of Pt-based solid-solution alloys. A current density of 10 mA cm-2 was reached with an overpotential of 19.4 mV, which is significantly lower than that of a commercial Pt catalyst (26.3 mV). The PtW NPs also exhibited long-term stability. Theoretical calculations revealed that negatively charged Pt atoms adjacent to a W atom provide favorable hydrogen adsorption energies for the HER, realizing significantly enhanced HER activity.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Am Chem Soc Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Japão
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: J Am Chem Soc Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Japão