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Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity

Manipulation of the co‐catalyst plays a vital role in charge separation and reactant activation to enhance the activity of metal‐organic framework‐based photocatalysts. However, clarifying and controlling co‐catalyst related charge transfer process and parameters are still challenging. Herein, three...

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Autores principales: Wang, Yang, Zhang, Wei, Li, Dan, Guo, Jianping, Yu, Yu, Ding, Kejian, Duan, Wubiao, Li, Xiyou, Liu, Heyuan, Su, Pengkun, Liu, Bo, Li, Jianfeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261486/
https://www.ncbi.nlm.nih.gov/pubmed/34258154
http://dx.doi.org/10.1002/advs.202004456
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author Wang, Yang
Zhang, Wei
Li, Dan
Guo, Jianping
Yu, Yu
Ding, Kejian
Duan, Wubiao
Li, Xiyou
Liu, Heyuan
Su, Pengkun
Liu, Bo
Li, Jianfeng
author_facet Wang, Yang
Zhang, Wei
Li, Dan
Guo, Jianping
Yu, Yu
Ding, Kejian
Duan, Wubiao
Li, Xiyou
Liu, Heyuan
Su, Pengkun
Liu, Bo
Li, Jianfeng
author_sort Wang, Yang
collection PubMed
description Manipulation of the co‐catalyst plays a vital role in charge separation and reactant activation to enhance the activity of metal‐organic framework‐based photocatalysts. However, clarifying and controlling co‐catalyst related charge transfer process and parameters are still challenging. Herein, three parameters are proposed, V (transfer) (the electron transfer rate from MOF to co‐catalyst), D (transfer) (the electron transfer distance from MOF to co‐catalyst), and V (consume) (the electron consume rate from co‐catalyst to the reactant), related to Pt on UiO‐66‐NH(2) in a photocatalytic process. These parameters can be controlled by rational manipulation of the co‐catalyst via three steps: i) Compositional design by partial substitution of Pt with Pd to form PtPd alloy, ii) location control by encapsulating the PtPd alloy into UiO‐66‐NH(2) crystals, and iii) facet selection by exposing the encapsulated PtPd alloy (100) facets. As revealed by ultrafast transient absorption spectroscopy and first‐principles simulations, the new Schottky junction (PtPd (100)@UiO‐66‐NH(2)) with higher V (transfer) and V (consume) exhibits enhanced electron‐hole separation and H(2)O activation than the traditional Pt/UiO‐66‐NH(2) junction, thereby leading to a significant enhancement in the photoactivity.
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spelling pubmed-82614862021-07-12 Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity Wang, Yang Zhang, Wei Li, Dan Guo, Jianping Yu, Yu Ding, Kejian Duan, Wubiao Li, Xiyou Liu, Heyuan Su, Pengkun Liu, Bo Li, Jianfeng Adv Sci (Weinh) Research Articles Manipulation of the co‐catalyst plays a vital role in charge separation and reactant activation to enhance the activity of metal‐organic framework‐based photocatalysts. However, clarifying and controlling co‐catalyst related charge transfer process and parameters are still challenging. Herein, three parameters are proposed, V (transfer) (the electron transfer rate from MOF to co‐catalyst), D (transfer) (the electron transfer distance from MOF to co‐catalyst), and V (consume) (the electron consume rate from co‐catalyst to the reactant), related to Pt on UiO‐66‐NH(2) in a photocatalytic process. These parameters can be controlled by rational manipulation of the co‐catalyst via three steps: i) Compositional design by partial substitution of Pt with Pd to form PtPd alloy, ii) location control by encapsulating the PtPd alloy into UiO‐66‐NH(2) crystals, and iii) facet selection by exposing the encapsulated PtPd alloy (100) facets. As revealed by ultrafast transient absorption spectroscopy and first‐principles simulations, the new Schottky junction (PtPd (100)@UiO‐66‐NH(2)) with higher V (transfer) and V (consume) exhibits enhanced electron‐hole separation and H(2)O activation than the traditional Pt/UiO‐66‐NH(2) junction, thereby leading to a significant enhancement in the photoactivity. John Wiley and Sons Inc. 2021-05-07 /pmc/articles/PMC8261486/ /pubmed/34258154 http://dx.doi.org/10.1002/advs.202004456 Text en © 2021 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
Wang, Yang
Zhang, Wei
Li, Dan
Guo, Jianping
Yu, Yu
Ding, Kejian
Duan, Wubiao
Li, Xiyou
Liu, Heyuan
Su, Pengkun
Liu, Bo
Li, Jianfeng
Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title_full Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title_fullStr Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title_full_unstemmed Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title_short Efficient Schottky Junction Construction in Metal‐Organic Frameworks for Boosting H(2) Production Activity
title_sort efficient schottky junction construction in metal‐organic frameworks for boosting h(2) production activity
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261486/
https://www.ncbi.nlm.nih.gov/pubmed/34258154
http://dx.doi.org/10.1002/advs.202004456
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