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Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support

Engineering active sites of metal nanoparticle‐based heterogeneous catalysts is one of the most prerequisite approaches for the efficient production of chemicals, but the limited active sites and undesired oxidation on the metal nanoparticles still remain as key challenges. Here, it is reported that...

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Autores principales: Han, Sung Su, Thacharon, Athira, Kim, Jun, Chung, Kyungwha, Liu, Xinghui, Jang, Woo‐Sung, Jetybayeva, Albina, Hong, Seungbum, Lee, Kyu Hyoung, Kim, Young‐Min, Cho, Eun Jin, Kim, Sung Wng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839873/
https://www.ncbi.nlm.nih.gov/pubmed/36394076
http://dx.doi.org/10.1002/advs.202204248
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author Han, Sung Su
Thacharon, Athira
Kim, Jun
Chung, Kyungwha
Liu, Xinghui
Jang, Woo‐Sung
Jetybayeva, Albina
Hong, Seungbum
Lee, Kyu Hyoung
Kim, Young‐Min
Cho, Eun Jin
Kim, Sung Wng
author_facet Han, Sung Su
Thacharon, Athira
Kim, Jun
Chung, Kyungwha
Liu, Xinghui
Jang, Woo‐Sung
Jetybayeva, Albina
Hong, Seungbum
Lee, Kyu Hyoung
Kim, Young‐Min
Cho, Eun Jin
Kim, Sung Wng
author_sort Han, Sung Su
collection PubMed
description Engineering active sites of metal nanoparticle‐based heterogeneous catalysts is one of the most prerequisite approaches for the efficient production of chemicals, but the limited active sites and undesired oxidation on the metal nanoparticles still remain as key challenges. Here, it is reported that the negatively charged surface of copper nanoparticles on the 2D [Ca(2)N](+)∙e(−) electride provides the unrestricted active sites for catalytic selective sulfenylation of indoles and azaindoles with diaryl disulfides. Substantial electron transfer from the electride support to copper nanoparticles via electronic metal–support interactions results in the accumulation of excess electrons at the surface of copper nanoparticles. Moreover, the surface‐accumulated excess electrons prohibit the oxidation of copper nanoparticle, thereby maintaining the metallic surface in a negatively charged state and activating both (aza)indoles and disulfides under mild conditions in the absence of any further additives. This study defines the role of excess electrons on the nanoparticle‐based heterogeneous catalyst that can be rationalized in versatile systems.
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spelling pubmed-98398732023-01-18 Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support Han, Sung Su Thacharon, Athira Kim, Jun Chung, Kyungwha Liu, Xinghui Jang, Woo‐Sung Jetybayeva, Albina Hong, Seungbum Lee, Kyu Hyoung Kim, Young‐Min Cho, Eun Jin Kim, Sung Wng Adv Sci (Weinh) Research Articles Engineering active sites of metal nanoparticle‐based heterogeneous catalysts is one of the most prerequisite approaches for the efficient production of chemicals, but the limited active sites and undesired oxidation on the metal nanoparticles still remain as key challenges. Here, it is reported that the negatively charged surface of copper nanoparticles on the 2D [Ca(2)N](+)∙e(−) electride provides the unrestricted active sites for catalytic selective sulfenylation of indoles and azaindoles with diaryl disulfides. Substantial electron transfer from the electride support to copper nanoparticles via electronic metal–support interactions results in the accumulation of excess electrons at the surface of copper nanoparticles. Moreover, the surface‐accumulated excess electrons prohibit the oxidation of copper nanoparticle, thereby maintaining the metallic surface in a negatively charged state and activating both (aza)indoles and disulfides under mild conditions in the absence of any further additives. This study defines the role of excess electrons on the nanoparticle‐based heterogeneous catalyst that can be rationalized in versatile systems. John Wiley and Sons Inc. 2022-11-17 /pmc/articles/PMC9839873/ /pubmed/36394076 http://dx.doi.org/10.1002/advs.202204248 Text en © 2022 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Han, Sung Su
Thacharon, Athira
Kim, Jun
Chung, Kyungwha
Liu, Xinghui
Jang, Woo‐Sung
Jetybayeva, Albina
Hong, Seungbum
Lee, Kyu Hyoung
Kim, Young‐Min
Cho, Eun Jin
Kim, Sung Wng
Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title_full Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title_fullStr Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title_full_unstemmed Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title_short Boosted Heterogeneous Catalysis by Surface‐Accumulated Excess Electrons of Non‐Oxidized Bare Copper Nanoparticles on Electride Support
title_sort boosted heterogeneous catalysis by surface‐accumulated excess electrons of non‐oxidized bare copper nanoparticles on electride support
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9839873/
https://www.ncbi.nlm.nih.gov/pubmed/36394076
http://dx.doi.org/10.1002/advs.202204248
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