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Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase
Zhang, Zhibo1,2; Xu, Bao-hua2; Luo, Jianquan3; Von Solms, Nicolas1; He, Hongyan2; Zhang, Yaqin2; Pinelo, Manuel1; Zhang, Suojiang2
2018-08-01
Source PublicationCATALYSTS
ISSN2073-4344
Volume8Issue:8Pages:13
Abstract

Efficient CO2 conversion by formate dehydrogenase is limited by the low CO2 concentrations that can be reached in traditional buffers. The use of ionic liquids was proposed as a manner to increase CO2 concentration in the reaction system. It has been found, however, that the required cofactor (NADH) heavily degraded during the enzymatic reaction and that acidity was the main reason. Acidity, indeed, resulted in reduction of the conversion of CO2 into formic acid and contributed to overestimate the amount of formic acid produced when the progression of the reaction was followed by a decrease in NADH absorbance (method N). Stability of NADH and the mechanism of NADH degradation was investigated by UV, NMR and by DFT calculations. It was found that by selecting neutral-basic ionic liquids and by adjusting the concentration of the ionic liquid in the buffer, the concentration of NADH can be maintained in the reaction system with little loss. Conversion of CO2 to methanol in BmimBF(4) (67.1%) was more than twice as compared with the conversion attained by the enzymatic reaction in phosphate buffer (24.3%).

KeywordIonic Liquids Formate Dehydrogenase Nadh Degradation Co2 Conversion
DOI10.3390/catal8080304
Language英语
WOS KeywordCarbon-dioxide Reduction ; Enzymatic Conversion ; Formic-acid ; Capture ; System ; Immobilization ; Stability ; Anhydrase ; Methanol ; Progress
Funding ProjectNational Science Foundation of China[U1704251] ; National Science Foundation of China[U1662133] ; CAS 100-Talent Program (2014)
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Science Foundation of China ; CAS 100-Talent Program (2014)
WOS IDWOS:000442517100009
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/25553
Collection中国科学院过程工程研究所
Corresponding AuthorPinelo, Manuel; Zhang, Suojiang
Affiliation1.Tech Univ Denmark, Dept Chem & Biochem Engn, Bldg 229, DK-2800 Lyngby, Denmark
2.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Key Lab Green Proc & Engn,State Key Lab Multiphas, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zhibo,Xu, Bao-hua,Luo, Jianquan,et al. Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase[J]. CATALYSTS,2018,8(8):13.
APA Zhang, Zhibo.,Xu, Bao-hua.,Luo, Jianquan.,Von Solms, Nicolas.,He, Hongyan.,...&Zhang, Suojiang.(2018).Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase.CATALYSTS,8(8),13.
MLA Zhang, Zhibo,et al."Ionic Liquids as Bifunctional Cosolvents Enhanced CO2 Conversion Catalysed by NADH-Dependent Formate Dehydrogenase".CATALYSTS 8.8(2018):13.
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