Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production

Electrocatalytic and photocatalytic hydrogen evolution reactions (HERs) provide a promising approach to clean energy generation. Bimetallic single-atom catalysts have been developed and explored to be advanced catalysts for HER. It is urgent to review and summarize the recent advances in developing...

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Main Authors: Mengyang Zhang, Keyu Xu, Ning Sun, Yanling Zhuang, Longlu Wang, Dafeng Yan
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/13/11/1409
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author Mengyang Zhang
Keyu Xu
Ning Sun
Yanling Zhuang
Longlu Wang
Dafeng Yan
author_facet Mengyang Zhang
Keyu Xu
Ning Sun
Yanling Zhuang
Longlu Wang
Dafeng Yan
author_sort Mengyang Zhang
collection DOAJ
description Electrocatalytic and photocatalytic hydrogen evolution reactions (HERs) provide a promising approach to clean energy generation. Bimetallic single-atom catalysts have been developed and explored to be advanced catalysts for HER. It is urgent to review and summarize the recent advances in developing bimetallic single-atom HER catalysts. Firstly, the fundamentals of bimetallic single-atom catalysts are presented, highlighting their unique configuration of two isolated metal atoms on their supports and resultant synergistic effects. Secondly, recent advances in bimetallic single-atom catalysts for electrocatalytic HER under acidic/alkaline conditions are then reviewed, including W-Mo, Ru-Bi, Ni-Fe, Co-Ag, and other dual-atom systems on graphene and transition metal dichalcogenides (TMDs) with enhanced HER activity versus monometallic analogs due to geometric and electronic synergies. Then, photocatalytic bimetallic single-atom catalysts on semiconducting carbon nitrides for solar H<sub>2</sub> production are also discussed. Finally, an outlook is provided on opportunities and challenges in precisely controlling bimetallic single-atom catalyst synthesis and gaining in-depth mechanistic insights into bimetallic interactions. Further mechanistic and synthetic studies on bimetallic single-atom catalysts will be imperative for developing optimal systems for efficient and sustainable hydrogen production.
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spelling doaj.art-754b8fe2af1445189959ba5b62ee6c562023-11-24T14:34:53ZengMDPI AGCatalysts2073-43442023-10-011311140910.3390/catal13111409Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen ProductionMengyang Zhang0Keyu Xu1Ning Sun2Yanling Zhuang3Longlu Wang4Dafeng Yan5College of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Road, Nanjing 210023, ChinaCollege of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Road, Nanjing 210023, ChinaCollege of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Road, Nanjing 210023, ChinaCollege of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Road, Nanjing 210023, ChinaCollege of Electronic and Optical Engineering and College of Flexible Electronics (Future Technology), Nanjing University of Posts and Telecommunications (NJUPT), 9 Wenyuan Road, Nanjing 210023, ChinaCollege of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, ChinaElectrocatalytic and photocatalytic hydrogen evolution reactions (HERs) provide a promising approach to clean energy generation. Bimetallic single-atom catalysts have been developed and explored to be advanced catalysts for HER. It is urgent to review and summarize the recent advances in developing bimetallic single-atom HER catalysts. Firstly, the fundamentals of bimetallic single-atom catalysts are presented, highlighting their unique configuration of two isolated metal atoms on their supports and resultant synergistic effects. Secondly, recent advances in bimetallic single-atom catalysts for electrocatalytic HER under acidic/alkaline conditions are then reviewed, including W-Mo, Ru-Bi, Ni-Fe, Co-Ag, and other dual-atom systems on graphene and transition metal dichalcogenides (TMDs) with enhanced HER activity versus monometallic analogs due to geometric and electronic synergies. Then, photocatalytic bimetallic single-atom catalysts on semiconducting carbon nitrides for solar H<sub>2</sub> production are also discussed. Finally, an outlook is provided on opportunities and challenges in precisely controlling bimetallic single-atom catalyst synthesis and gaining in-depth mechanistic insights into bimetallic interactions. Further mechanistic and synthetic studies on bimetallic single-atom catalysts will be imperative for developing optimal systems for efficient and sustainable hydrogen production.https://www.mdpi.com/2073-4344/13/11/1409bimetallic single-atomcharacterizationcatalytic mechanismhydrogen evolution reaction
spellingShingle Mengyang Zhang
Keyu Xu
Ning Sun
Yanling Zhuang
Longlu Wang
Dafeng Yan
Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
Catalysts
bimetallic single-atom
characterization
catalytic mechanism
hydrogen evolution reaction
title Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
title_full Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
title_fullStr Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
title_full_unstemmed Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
title_short Bimetallic Single-Atom Catalysts for Electrocatalytic and Photocatalytic Hydrogen Production
title_sort bimetallic single atom catalysts for electrocatalytic and photocatalytic hydrogen production
topic bimetallic single-atom
characterization
catalytic mechanism
hydrogen evolution reaction
url https://www.mdpi.com/2073-4344/13/11/1409
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