气候变化领域集成服务门户(CCPortal): Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas

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DOI	10.1038/s41467-021-25068-7
	Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas
	Gao W.; Li S.; He H.; Li X.; Cheng Z.; Yang Y.; Wang J.; Shen Q.; Wang X.; Xiong Y.; Zhou Y.; Zou Z.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Artificial photosynthesis, light-driving CO2 conversion into hydrocarbon fuels, is a promising strategy to synchronously overcome global warming and energy-supply issues. The quaternary AgInP2S6 atomic layer with the thickness of ~ 0.70 nm were successfully synthesized through facile ultrasonic exfoliation of the corresponding bulk crystal. The sulfur defect engineering on this atomic layer through a H2O2 etching treatment can excitingly change the CO2 photoreduction reaction pathway to steer dominant generation of ethene with the yield-based selectivity reaching ~73% and the electron-based selectivity as high as ~89%. Both DFT calculation and in-situ FTIR spectra demonstrate that as the introduction of S vacancies in AgInP2S6 causes the charge accumulation on the Ag atoms near the S vacancies, the exposed Ag sites can thus effectively capture the forming *CO molecules. It makes the catalyst surface enrich with key reaction intermediates to lower the C-C binding coupling barrier, which facilitates the production of ethene. © 2021, The Author(s).
语种	英语
scopus关键词	carbon dioxide; carbon monoxide; ethylene; hydrogen peroxide; indium; phosphorus derivative; silver derivative; sulfur derivative; carbon dioxide; catalyst; chemical bonding; energy storage; ethylene; global warming; sulfur; thin section; ultrasonics; absorption; Article; catalyst; controlled study; crystal; density functional theory; electron; Fourier transform infrared spectroscopy; hydrogenation; photocatalysis; photosynthesis; quantum yield; reaction analysis; reduction (chemistry); thickness; ultrasound; volume; water vapor
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250641
作者单位	Key Laboratory of Modern Acoustics (MOE), Institute of Acoustics, School of Physics, Jiangsu Key Laboratory of Nanotechnology, Eco-materials and Renewable Energy Research Center (ERERC), National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, China; School of Physics, Southeast University, Nanjing, China; State Key Laboratory of Environmental Friendly Energy Materials, Southwest University of Science and Technology, Mianyang, China; Institute of Superconducting & Electronic Materials, Innovation Campus, University of Wollongong, Squires Way, North Wollongong, NSW, Australia; Key Laboratory of Soft Chemistry and Functional Materials (MOE), Nanjing University of Science and Technology, Nanjing, China; University of Electrocommunication, Grad Sch Informatics and Engineering, Chofu, Tokyo, Japan; Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation Center of Chemistry for Energy Materia...
推荐引用方式 GB/T 7714	Gao W.,Li S.,He H.,et al. Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas[J],2021,12(1).
APA	Gao W..,Li S..,He H..,Li X..,Cheng Z..,...&Zou Z..(2021).Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas.Nature Communications,12(1).
MLA	Gao W.,et al."Vacancy-defect modulated pathway of photoreduction of CO2 on single atomically thin AgInP2S6 sheets into olefiant gas".Nature Communications 12.1(2021).