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Urea-derived graphitic carbon nitride as an efficient heterogeneous catalyst for CO2 conversion into cyclic carbonates
Alternative TitleCatal. Sci. Technol.
Su, Qian1,2; Sun, Jian1; Wang, Jinquan1; Yang, Zifeng1,3; Cheng, Weiguo1; Zhang, Suojiang1
2014
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume4Issue:6Pages:1556-1562
AbstractIn order to overcome existing solid catalysts' disadvantages of low stability and activity, urea-derived graphitic carbon nitrides (u-g-C3N4) with higher stabilities and more active centers were prepared under different temperatures (550-450 degrees C). With a decrease in preparation temperature from 550 degrees C to 480 degrees C, a u-g-C3N4 of lower crystallinity with a smaller polymerization degree was obtained and found to have a higher catalytic activity for CO2 conversion into propylene carbonate. The higher activity of the u-g-C3N4 caused by decreasing the temperature might be ascribed to the lower crystallinity and polymerization degree, which led to more edge defects, wherein the incompletely-coordinated nitrogen atoms served as the main active sites in the cycloaddition reaction. Among all the prepared catalysts, that prepared at 480 degrees C (u-g-C3N4-480) showed the highest catalytic activity for CO2 conversion and exhibited great suitability for other epoxide substrates.; In order to overcome existing solid catalysts' disadvantages of low stability and activity, urea-derived graphitic carbon nitrides (u-g-C3N4) with higher stabilities and more active centers were prepared under different temperatures (550-450 degrees C). With a decrease in preparation temperature from 550 degrees C to 480 degrees C, a u-g-C3N4 of lower crystallinity with a smaller polymerization degree was obtained and found to have a higher catalytic activity for CO2 conversion into propylene carbonate. The higher activity of the u-g-C3N4 caused by decreasing the temperature might be ascribed to the lower crystallinity and polymerization degree, which led to more edge defects, wherein the incompletely-coordinated nitrogen atoms served as the main active sites in the cycloaddition reaction. Among all the prepared catalysts, that prepared at 480 degrees C (u-g-C3N4-480) showed the highest catalytic activity for CO2 conversion and exhibited great suitability for other epoxide substrates.
KeywordFunctionalized Ionic Liquid Quaternary Ammonium-salt Chemical Fixation Highly Efficient Visible-light Supercritical Conditions Propylene Carbonate Dimethyl Carbonate Oxygen Reduction Base Catalysts
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c3cy00921a
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFUNCTIONALIZED IONIC LIQUID ; QUATERNARY AMMONIUM-SALT ; CHEMICAL FIXATION ; HIGHLY EFFICIENT ; VISIBLE-LIGHT ; SUPERCRITICAL CONDITIONS ; PROPYLENE CARBONATE ; DIMETHYL CARBONATE ; OXYGEN REDUCTION ; BASE CATALYSTS
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000336158700009
Citation statistics
Cited Times:128[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10958
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn,Key Lab Green Proc & Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
3.Henan Univ, Sch Chem & Chem Engn, Kaifeng 475001, Peoples R China
Recommended Citation
GB/T 7714
Su, Qian,Sun, Jian,Wang, Jinquan,et al. Urea-derived graphitic carbon nitride as an efficient heterogeneous catalyst for CO2 conversion into cyclic carbonates[J]. CATALYSIS SCIENCE & TECHNOLOGY,2014,4(6):1556-1562.
APA Su, Qian,Sun, Jian,Wang, Jinquan,Yang, Zifeng,Cheng, Weiguo,&Zhang, Suojiang.(2014).Urea-derived graphitic carbon nitride as an efficient heterogeneous catalyst for CO2 conversion into cyclic carbonates.CATALYSIS SCIENCE & TECHNOLOGY,4(6),1556-1562.
MLA Su, Qian,et al."Urea-derived graphitic carbon nitride as an efficient heterogeneous catalyst for CO2 conversion into cyclic carbonates".CATALYSIS SCIENCE & TECHNOLOGY 4.6(2014):1556-1562.
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