中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 大连化学物理研究所
  3. 中国科学院大连化学物理研究所
TixCe1-xO2 nanocomposites: a monolithic catalyst for the direct conversion of carbon dioxide and methanol to dimethyl carbonate

文献类型：期刊论文

作者Chen, Yongdong2,3; Wang, Hong2; Qin, Zhaoxian3; Tian, Shanti2,3; Ye, Zhongbin2; Ye, Lin2; Abroshan, Hadi1,4; Li, Gao3
刊名GREEN CHEMISTRY
出版日期2019-09-07
卷号21期号:17页码:4642-4649
ISSN号1463-9262
DOI10.1039/c9gc00811j
通讯作者Chen, Yongdong(yongdongchen@swpu.edu.cn) ; Abroshan, Hadi(hadi.abroshan@chemistry.gatech.edu) ; Li, Gao(gaoli@dicp.ac.cn)
英文摘要Dimethyl carbonate (DMC) is widely employed as a versatile reagent and solvent for green organic synthesis and fuel additives. Owing to the environmental issues of the traditional methods for DMC production, the direct synthesis of DMC from carbon dioxide and methanol has received significant interest worldwide. Here, we demonstrate the catalytic effectiveness of monolithic titanium-doped cerium oxides, TixCe1-xO2 nanocomposites, for the direct synthesis of DMC. The TixCe1-xO2 nanocomposites are characterized by BET measurements, Raman spectroscopy, powder X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and H-2-temperature-programmed reduction analysis. To increase the reaction efficiency, the TixCe1-xO2 composites are uniformly coated on honeycomb ceramics in a continuous tubular fixed-bed reactor. This leads to an extended surface area of the catalyst, and therefore the reaction conversion rate toward DMC production is significantly enhanced. Results indicate that the catalyst exhibits 24.3% methanol conversion with 79% selectivity for DMC synthesis at 140 degrees C in the absence of any dehydrating agents. The catalytic effectiveness of the TixCe1-xO2 nanocomposites is found to be considerably higher than those of conventional catalysts. Analysis shows that the concentration of active sites can be systemically enriched by incorporating an optimal amount of Ti dopants into CeO2 to improve the catalytic activity of the reaction. The results of this study demonstrate the promise of the TixCe1-xO2 nanocomposites for the green production of DMC, and may offer guidelines for designing efficient catalysts for the selective conversion of methanol to other building blocks of chemical synthesis.
WOS关键词CO2 ; OXIDATION ; CERIA ; TRANSESTERIFICATION ; NANOCLUSTERS ; MORPHOLOGY ; CE
资助项目National Natural Science Foundation of China[21773189] ; National Undergraduate Training Program for Innovation and Entrepreneurship[201710615001] ; National Undergraduate Training Program for Innovation and Entrepreneurship[201810615032] ; Liaoning Revitalization Talents Program[XLYC1807121]
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000483588100025
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Undergraduate Training Program for Innovation and Entrepreneurship ; National Undergraduate Training Program for Innovation and Entrepreneurship ; Liaoning Revitalization Talents Program ; Liaoning Revitalization Talents Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Undergraduate Training Program for Innovation and Entrepreneurship ; National Undergraduate Training Program for Innovation and Entrepreneurship ; Liaoning Revitalization Talents Program ; Liaoning Revitalization Talents Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Undergraduate Training Program for Innovation and Entrepreneurship ; National Undergraduate Training Program for Innovation and Entrepreneurship ; Liaoning Revitalization Talents Program ; Liaoning Revitalization Talents Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Undergraduate Training Program for Innovation and Entrepreneurship ; National Undergraduate Training Program for Innovation and Entrepreneurship ; Liaoning Revitalization Talents Program ; Liaoning Revitalization Talents Program
源URL[http://cas-ir.dicp.ac.cn/handle/321008/173060]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Chen, Yongdong; Abroshan, Hadi; Li, Gao
作者单位1.Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
2.Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Sichuan, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
4.Stanford Univ, SUNCAT Ctr Interface Sci & Catalysis, Dept Chem Engn, Stanford, CA 94305 USA
推荐引用方式
GB/T 7714		 Chen, Yongdong,Wang, Hong,Qin, Zhaoxian,et al. TixCe1-xO2 nanocomposites: a monolithic catalyst for the direct conversion of carbon dioxide and methanol to dimethyl carbonate[J]. GREEN CHEMISTRY,2019,21(17):4642-4649.
APA Chen, Yongdong.,Wang, Hong.,Qin, Zhaoxian.,Tian, Shanti.,Ye, Zhongbin.,...&Li, Gao.(2019).TixCe1-xO2 nanocomposites: a monolithic catalyst for the direct conversion of carbon dioxide and methanol to dimethyl carbonate.GREEN CHEMISTRY,21(17),4642-4649.
MLA Chen, Yongdong,et al."TixCe1-xO2 nanocomposites: a monolithic catalyst for the direct conversion of carbon dioxide and methanol to dimethyl carbonate".GREEN CHEMISTRY 21.17(2019):4642-4649.

入库方式： OAI收割

来源：大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。