Light-Induced Variation of Lithium Coordination Environment in g-C3N4 Nanosheet for Highly Efficient Oxygen Reduction Reactions - Details

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Abstract：

The　structure　and　electronic　state　of　the　active　center　in　a　single-atom　catalyst　undergo　noticeable　changes　during　a　dynamic　catalytic　process.　The　metal　atom　active　center　is　not　well　demonstrated　in　a　dynamic　manner.　This　study　demonstrated　that　Li　metal　atoms,　serving　as　active　centers,　can　migrate　on　a　C3N4　monolayer　or　between　C3N4　monolayers　when　exposed　to　light　irradiation.　This　migration　alters　the　local　coordination　environment　of　Li　in　the　C3N4　nanosheets,　leading　to　a　significant　enhancement　in　photocatalytic　activity.　The　photocatalytic　H2O2　process　could　be　maintained　for　35　h　with　a　920　mmol/g　record-high　yield,　corresponding　to　a　0.4%　H2O2　concentration,　which　is　far　greater　than　the　value　(0.1%)　of　practical　application　for　wastewater　treatment.　Density　functional　theory　calculations　indicated　that　dynamic　Li-coordinated　structures　contributed　to　the　superhigh　photocatalytic　activity.　©　2024　American　Chemical　Society.

Keyword：

Coordination environment Single-atom catalyst Dynamic active center Photocatalytic H2O2 Oxygen reduction reaction

Author Community：

[ 1 ] [Zhuang C.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
[ 2 ] [Chang Y.]Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian, 116024, China
[ 3 ] [Li W.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
[ 4 ] [Li S.]Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, National Engineering Research Center for Marine Aquaculture, College of Marine Science and Technology, Zhejiang Ocean University, Zhejiang, Zhoushan, 316022, China
[ 5 ] [Xu P.]National Center for Nanoscience and Technology, Beijing, 100190, China
[ 6 ] [Zhang H.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
[ 7 ] [Zhang Y.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
[ 8 ] [Zhang C.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
[ 9 ] [Gao J.]Laboratory of Materials Modification by Laser Ion and Electron Beams (Dalian University of Technology), Ministry of Education, Dalian, 116024, China
[ 10 ] [Chen G.]Beijing Key Laboratory for Green Catalysis and Separation, Faculty of Environment and Life Science, Beijing University of Technology, Beijing, 100124, China
[ 11 ] [Zhang T.]Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
[ 12 ] [Kang Z.]Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
[ 13 ] [Kang Z.]Macao Institute of Materials Science and Engineering (MIMSE), MUST−SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, 999078, Macao
[ 14 ] [Han X.]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China

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Source ：

ACS Nano

ISSN： 1936-0851

Year： 2024

Issue： 6

Volume： 18

Page： 5206-5217

1 7 . 1 0 0

JCR@2022

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WoS CC Cited Count： 0

SCOPUS Cited Count： 154

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 6

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