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Ionozyme : ionic liquids as solvent and stabilizer for efficient bioactivation of CO2
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- Ji, Xiuling (författare)
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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- Xue, Yaju (författare)
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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- Li, Zhuang (författare)
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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- Royal Society of Chemistry, 2021
- 2021
- Engelska.
- Ingår i: Green Chemistry. - : Royal Society of Chemistry. - 1463-9262 .- 1463-9270. ; 23:18, s. 6990-7000
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- The efficient bioactivation of CO2 provides an alternative new strategy for producing high value chemicals and fuels. Normally, in vitro activation of CO2 can be achieved by using formate dehydrogenase (FDH). However, the CO2 solubility and the activity of commercial FDHCb remain a tough challenge for the efficient bioactivation of CO2. Here, we report a new “ionozyme” strategy created by using ionic liquids (ILs) as a solvent and enzyme stabilizer, resulting in a 142.3-fold increase in CO2 conversion over FDHCb. The ionozyme (FDHPa-[CH][Pro]-[TMGH][PhO]) was first developed by combing a discovered novel FDHPa with an efficient synergistic ionic microenvironment. The remarkable performance of this ionozyme is attributed to forming key intermediates [CH][ProCOO] and [TMGH][PhOCOO], stabilizing the enzyme structure with increased solvation structure, and shortening the distance (3.9 Å) between NADH and CO2 to favor the hydride transfer by facilitating their relative orientation and forming new hydrogen bonds at the active sites. This bioactivation of CO2 by this specific ionozyme represents ideal starting points for the sustainable carbon cycle.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
Nyckelord
- Energiteknik
- Energy Engineering
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- Ji, Xiuling
- Xue, Yaju
- Li, Zhuang
- Liu, Yanrong
- Liu, Lei
- Kamp Busk, Peter
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- Lange, Lene
- Huang, Yuhong
- Zhang, Suojiang
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