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Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites

Multimetallic alloys (MMAs) with various compositions enrich the materials library with increasing diversity and have received much attention in catalysis applications. However, precisely shaping MMAs in mesoporous nanostructures and mapping the distributions of multiple elements remain big challeng...

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Autores principales: Kang, Yunqing, Cretu, Ovidiu, Kikkawa, Jun, Kimoto, Koji, Nara, Hiroki, Nugraha, Asep Sugih, Kawamoto, Hiroki, Eguchi, Miharu, Liao, Ting, Sun, Ziqi, Asahi, Toru, Yamauchi, Yusuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10344865/
https://www.ncbi.nlm.nih.gov/pubmed/37443103
http://dx.doi.org/10.1038/s41467-023-39157-2
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author Kang, Yunqing
Cretu, Ovidiu
Kikkawa, Jun
Kimoto, Koji
Nara, Hiroki
Nugraha, Asep Sugih
Kawamoto, Hiroki
Eguchi, Miharu
Liao, Ting
Sun, Ziqi
Asahi, Toru
Yamauchi, Yusuke
author_facet Kang, Yunqing
Cretu, Ovidiu
Kikkawa, Jun
Kimoto, Koji
Nara, Hiroki
Nugraha, Asep Sugih
Kawamoto, Hiroki
Eguchi, Miharu
Liao, Ting
Sun, Ziqi
Asahi, Toru
Yamauchi, Yusuke
author_sort Kang, Yunqing
collection PubMed
description Multimetallic alloys (MMAs) with various compositions enrich the materials library with increasing diversity and have received much attention in catalysis applications. However, precisely shaping MMAs in mesoporous nanostructures and mapping the distributions of multiple elements remain big challenge due to the different reduction kinetics of various metal precursors and the complexity of crystal growth. Here we design a one-pot wet-chemical reduction approach to synthesize core–shell motif PtPdRhRuCu mesoporous nanospheres (PtPdRhRuCu MMNs) using a diblock copolymer as the soft template. The PtPdRhRuCu MMNs feature adjustable compositions and exposed porous structures rich in highly entropic alloy sites. The formation processes of the mesoporous structures and the reduction and growth kinetics of different metal precursors of PtPdRhRuCu MMNs are revealed. The PtPdRhRuCu MMNs exhibit robust electrocatalytic hydrogen evolution reaction (HER) activities and low overpotentials of 10, 13, and 28 mV at a current density of 10 mA cm(−2) in alkaline (1.0 M KOH), acidic (0.5 M H(2)SO(4)), and neutral (1.0 M phosphate buffer solution (PBS)) electrolytes, respectively. The accelerated kinetics of the HER in PtPdRhRuCu MMNs are derived from multiple compositions with synergistic interactions among various metal sites and mesoporous structures with excellent mass/electron transportation characteristics.
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spelling pubmed-103448652023-07-15 Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites Kang, Yunqing Cretu, Ovidiu Kikkawa, Jun Kimoto, Koji Nara, Hiroki Nugraha, Asep Sugih Kawamoto, Hiroki Eguchi, Miharu Liao, Ting Sun, Ziqi Asahi, Toru Yamauchi, Yusuke Nat Commun Article Multimetallic alloys (MMAs) with various compositions enrich the materials library with increasing diversity and have received much attention in catalysis applications. However, precisely shaping MMAs in mesoporous nanostructures and mapping the distributions of multiple elements remain big challenge due to the different reduction kinetics of various metal precursors and the complexity of crystal growth. Here we design a one-pot wet-chemical reduction approach to synthesize core–shell motif PtPdRhRuCu mesoporous nanospheres (PtPdRhRuCu MMNs) using a diblock copolymer as the soft template. The PtPdRhRuCu MMNs feature adjustable compositions and exposed porous structures rich in highly entropic alloy sites. The formation processes of the mesoporous structures and the reduction and growth kinetics of different metal precursors of PtPdRhRuCu MMNs are revealed. The PtPdRhRuCu MMNs exhibit robust electrocatalytic hydrogen evolution reaction (HER) activities and low overpotentials of 10, 13, and 28 mV at a current density of 10 mA cm(−2) in alkaline (1.0 M KOH), acidic (0.5 M H(2)SO(4)), and neutral (1.0 M phosphate buffer solution (PBS)) electrolytes, respectively. The accelerated kinetics of the HER in PtPdRhRuCu MMNs are derived from multiple compositions with synergistic interactions among various metal sites and mesoporous structures with excellent mass/electron transportation characteristics. Nature Publishing Group UK 2023-07-13 /pmc/articles/PMC10344865/ /pubmed/37443103 http://dx.doi.org/10.1038/s41467-023-39157-2 Text en © The Author(s) 2023, corrected publication 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Kang, Yunqing
Cretu, Ovidiu
Kikkawa, Jun
Kimoto, Koji
Nara, Hiroki
Nugraha, Asep Sugih
Kawamoto, Hiroki
Eguchi, Miharu
Liao, Ting
Sun, Ziqi
Asahi, Toru
Yamauchi, Yusuke
Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title_full Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title_fullStr Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title_full_unstemmed Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title_short Mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
title_sort mesoporous multimetallic nanospheres with exposed highly entropic alloy sites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10344865/
https://www.ncbi.nlm.nih.gov/pubmed/37443103
http://dx.doi.org/10.1038/s41467-023-39157-2
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