Urea-derived graphitic carbon nitride as an efficient heterogeneous catalyst for CO2 conversion into cyclic carbonates
文献类型：期刊论文
| 作者 | Su, Qian1,2; Sun, Jian1; Wang, Jinquan1; Yang, Zifeng1,3; Cheng, Weiguo1; Zhang, Suojiang1 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:6页码:1556-1562 |
| 关键词 | FUNCTIONALIZED IONIC LIQUID QUATERNARY AMMONIUM-SALT CHEMICAL FIXATION HIGHLY EFFICIENT VISIBLE-LIGHT SUPERCRITICAL CONDITIONS PROPYLENE CARBONATE DIMETHYL CARBONATE OXYGEN REDUCTION BASE CATALYSTS |
| ISSN号 | 2044-4753 |
| 其他题名 | Catal. Sci. Technol. |
| 中文摘要 | 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. |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Physical |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | FUNCTIONALIZED IONIC LIQUID ; QUATERNARY AMMONIUM-SALT ; CHEMICAL FIXATION ; HIGHLY EFFICIENT ; VISIBLE-LIGHT ; SUPERCRITICAL CONDITIONS ; PROPYLENE CARBONATE ; DIMETHYL CARBONATE ; OXYGEN REDUCTION ; BASE CATALYSTS |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000336158700009 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/10958]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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