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. 过程工程研究所
  3. 中国科学院过程工程研究所
Aprotic phosphonium-based ionic liquid as electrolyte for high CO2 electroreduction to oxalate

文献类型：期刊论文

作者Jiang, Chongyang1,2; Zeng, Shaojuan1; Ma, Xifei1; Feng, Jiaqi1; Li, Guilin1; Bai, Lu1; Li, Fangfang3; Ji, Xiaoyan3; Zhang, Xiangping1,2
刊名AICHE JOURNAL
出版日期2022-08-27
页码9
ISSN号0001-1541
关键词aprotic CO2 electroreduction oxalate phosphonium-based ionic liquid
DOI10.1002/aic.17859
英文摘要In this study, a new CO2 electroreduction electrolyte system consisting of tetrabutylphosphonium 4-(methoxycarbonyl) phenol ([P-4444][4-MF-PhO]) ionic liquid (IL) and acetonitrile (AcN) was designed to produce oxalate, and the electroreduction mechanism was studied. The results show that using the new IL-based electrolyte, the electroreduction system exhibits 93.8% Faradaic efficiency and 12.6 mA cm(-2) partial current density of oxalate at -2.6 V. The formation rate of oxalate is 234.4 mu mol cm(-2) h(-1), which is better than those reported in the literature. The mechanism study using density functional theory (DFT) calculations reveals that [P-4444][4-MF-PhO] can effectively activate CO2 molecule through ester and phenoxy double active sites. In addition, in the phosphonium-based ionic environment, the potential barriers of the key intermediates *CO2- and *C2O42- are reduced by the induced electric field, which greatly facilitates the activation and conversion of CO2 molecule to oxalate.
WOS关键词ELECTROCHEMICAL REDUCTION ; CARBON-DIOXIDE ; CONVERSION ; EFFICIENCY ; CATALYSIS ; MECHANISM
资助项目National Key R&D Program of China[2020YFA0710200] ; National Natural Science Foundation of China[21838010] ; National Natural Science Foundation of China[22122814] ; Innovation Academy for Green Manufacture[IAGM2020C14] ; Instrument Developing Project of the Chinese Academy of Sciences[YJKYYQ20200062]
WOS研究方向Engineering
语种英语
出版者WILEY
WOS记录号WOS:000846452500001
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Innovation Academy for Green Manufacture ; Instrument Developing Project of the Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/54604]  
专题中国科学院过程工程研究所
通讯作者Zeng, Shaojuan; Zhang, Xiangping
作者单位1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Future Technol, Beijing, Peoples R China
3.Lulea Univ Technol, Div Energy Sci, Energy Engn, Lulea, Sweden
推荐引用方式
GB/T 7714		 Jiang, Chongyang,Zeng, Shaojuan,Ma, Xifei,et al. Aprotic phosphonium-based ionic liquid as electrolyte for high CO2 electroreduction to oxalate[J]. AICHE JOURNAL,2022:9.
APA Jiang, Chongyang.,Zeng, Shaojuan.,Ma, Xifei.,Feng, Jiaqi.,Li, Guilin.,...&Zhang, Xiangping.(2022).Aprotic phosphonium-based ionic liquid as electrolyte for high CO2 electroreduction to oxalate.AICHE JOURNAL,9.
MLA Jiang, Chongyang,et al."Aprotic phosphonium-based ionic liquid as electrolyte for high CO2 electroreduction to oxalate".AICHE JOURNAL (2022):9.

入库方式： OAI收割

来源：过程工程研究所

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。