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Advances in electro-microbial synergistic systems for value-added conversion of carbon dioxide
HAN Lin, GUO Yuman, LI Yan, CAO Hengheng, LI Jiajing, YANG Minghao, WANG Mengmeng, LI Jinping, LV Yongqin
Synthetic Biology Journal
DOI:
10.12211/2096-8280.2025-070
Fig. 15
Schematic of the sequential CO
2
electrolysis and microbial fermentation system for artificial synthesis of PHB
[
104
]
Extracts from the Article
在另一项研究中，Zhang等人开发了一种利用等离子体激发与电化学耦合的全分离系统（图15），通过构筑富缺陷的Bi
2
O
3
纳米催化剂高效将CO
2
转化为甲酸，法拉第效率超过80%［104］。随后，将甲酸作为唯一碳源供给
R. eutropha
进行发酵，最终以99.6 mg/（L·d）的速率实现了PHB的持续积累。这一策略不仅突破了传统发酵对复杂碳源依赖的局限，也为“绿色塑料”制造提供了碳中和路径下的新范式。
在另一项研究中，Zhang等人开发了一种利用等离子体激发与电化学耦合的全分离系统（
图15
），通过构筑富缺陷的Bi
2
O
3
纳米催化剂高效将CO
2
转化为甲酸，法拉第效率超过80%［
104
］.随后，将甲酸作为唯一碳源供给
R. eutropha
进行发酵，最终以99.6 mg/（L·d）的速率实现了PHB的持续积累.这一策略不仅突破了传统发酵对复杂碳源依赖的局限，也为“绿色塑料”制造提供了碳中和路径下的新范式. ...
在另一项研究中，Zhang等人开发了一种利用等离子体激发与电化学耦合的全分离系统（
图15
），通过构筑富缺陷的Bi
2
O
3
纳米催化剂高效将CO
2
转化为甲酸，法拉第效率超过80%［
104
］.随后，将甲酸作为唯一碳源供给
R. eutropha
进行发酵，最终以99.6 mg/（L·d）的速率实现了PHB的持续积累.这一策略不仅突破了传统发酵对复杂碳源依赖的局限，也为“绿色塑料”制造提供了碳中和路径下的新范式. ...
Bi等人进一步拓展了该策略，将CO
2
电催化产物甲酸和乙酸分别作为微生物的碳源和还原当量，建立了一套电-微生物完全分离型耦合系统（
图14
），并用于合成高附加值生物燃料——β-法尼烯［
98
］.具体而言，研究团队利用固态电解质反应器连续将CO
2
还原生成甲酸与乙酸，并在适当预处理后作为发酵底物供给代谢工程改造的
Yarrowia lipolytica
.最终实现了14.8±0.23 g/L的β-法尼烯产量，充分体现了反应过程解耦对微生物合成路径调控的正向推动作用. ...
Artificial synthesis of polyesters at ambient condition via consecutive CO
2
electrolysis and fermentation
4
2024
... 在另一项研究中，Zhang等人开发了一种利用等离子体激发与电化学耦合的全分离系统（
图15
），通过构筑富缺陷的Bi
2
O
3
纳米催化剂高效将CO
2
转化为甲酸，法拉第效率超过80%［
104
］.随后，将甲酸作为唯一碳源供给
R. eutropha
进行发酵，最终以99.6 mg/（L·d）的速率实现了PHB的持续积累.这一策略不仅突破了传统发酵对复杂碳源依赖的局限，也为“绿色塑料”制造提供了碳中和路径下的新范式. ...
Other Images/Table from this Article
Fig.1
Classifications of electrocatalytic-microbial
in situ
coupling systems
Fig.2
Design of different electrode materials and schematic diagram of the MES systems
Fig.3
Design of artificially regulated MES systems
Fig. 4
MES for C
2+
product synthesis
Fig. 5
H
2
-mediated enhancement strategies for MES-1
Fig. 6
H
2
-mediated enhancement strategies for MES-2
Fig. 7
Schematic of enhanced CO
2
-to-CH
4
energy efficiency via redox-mediated cathode functionalization in MES
[
80
]
Fig. 8
Construction of an artificial photosynthesis system by integrating a photoelectrochemical system with genetically engineered cells expressing rhodopsin and an outer-membrane conduit MtrCAB
[
95
]
Fig. 9
Three integrated modes of electrocatalytic-microbial
ex situ
coupling systems for CO
2
conversion
[
9
]
Fig. 10
An integrated electromicrobial process for converting CO
2
into higher alcohols
[
90
]
Fig. 11
Schematic illustration of the integrated EMC2 system
[
96
]
Fig. 12
Schematic of the continuous-flow biohybrid CO
2
electrolysis-fermentation system
[
102
]
Fig. 13
Schematic illustration of the electromicrobial cascade system for artificial glucose synthesis
[
103
]
Fig. 14
Schematic of the spatially separated electrochemical CO
2
reduction reaction (CO
2
RR) and microbial fermentation process for efficient β-farnesene synthesis from CO
2
[
98
]
Fig. 16
Schematic illustration of L-tyrosine synthesis from CO
2
using a blended nexus molecular system based on an abiotic/biotic cascade catalysis
[
105
]
Fig. 17
Schematic diagram of the carbon dioxide electrocatalytic platform and microbial conversion for long-chain compound synthesis. a) Schematic illustration of the integrated electrocatalytic/biocatalytic platform system for the synthesis of long-chain compounds from CO
2
. b) Schematic depiction of the fabrication process of the MPN@deCOP@Ag-Cu
2
O electrocatalytic platform. c) Construction of the ethanol utilization pathway
[
106
]
.
Table 1 Representative work:
in situ
vs
ex situ
coupling
Table 2 Comparative analysis of
in situ
and
ex situ
coupling systems
