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Zhijin Gong¹, Wei Zhang¹, Jiayao Chen¹

¹National Energy R&D Center for Biorefinery, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China; Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China.

Bioresource technology

|June 13, 2024

概括

这项研究有效地将二氧化碳 (CO2) 转化为黄酸,使用电化学和工程化大肠杆菌. 这一过程从废弃的二氧化碳中产生了一种有价值的化学构建块.

科学领域:

化学工程是化学工程的重要组成部分.
生物技术是生物技术.
催化剂是一种催化剂.

背景情况:

将二氧化碳 (CO2) 转化为有价值的化学物质是一个重大挑战.
酸是一种具有广泛工业应用的关键平台化学物质.
现有的二氧化碳利用和酸生产方法存在局限性.

研究的目的:

开发一种高效的过程,将二氧化碳再循环转化为黄酸.
将电化学二氧化碳转化与生物酸合成相结合.
为从二氧化碳中生产增值化学品建立一个可持续的途径.

主要方法:

合成一个铜-有机框架催化剂,用于电催化CO2转化为乙醇.
埃舍里希亚大肠杆菌的工程,以有效地同化二氧化碳衍生乙醇.
计算设计和代谢工程的结合,以改善应变.

主要成果:

高法拉第效率 (84.7%) 和纯度 (95%重量%) 在电催化乙醇生产中实现.
经过工程设计的大肠杆菌产生了酸,其位为53.8mM.
酸的产量达到0.41mol/mol,相当于理论最大值的82%.

结论:

成功将电化学二氧化碳转化与酸生物合成联系起来.
通过乙醇从二氧化碳中产生酸的可行途径.
这种综合方法为二氧化碳在化学品中的利用提供了一个有前途的战略.

关键词:

计算设计计算设计在Cu-OF催化剂.电催化CO2的RR转化为乙醇代谢工程是代谢工程.苏辛酸生产苏辛酸生产

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