Integrative electrochemical and biological catalysis for the mild and efficient utilization of renewable electricity and carbon resources
Liu, Licheng (Ocean University of China. College of Chemistry & Chemical Engineering)
Pant, Deepak (Flemish Institute for Technological Research)

Date:	2023
Abstract:	The chemical catalysis and biological catalysis both play important roles in producing various fuels, chemicals, and materials conventionally. In view of renewable resources (biomass and CO2) utilization, combining both chemical and biological catalysis would create revolutionary routes that are more sustainable and efficient for the processing of these resources. Considering the electricity is usually a main form of renewable energy, electrocatalysis also plays more important role. Therefore, the integrative electrochemical and biological catalysis for the simultaneous utilization of renewable energy and resources is attracting significant attention. In this review, such integrative processes and methods are summarized, discussed in depth and two integration modes are distinguished based on the use of electroactive/non-electroactive microorganisms. The intermediates mediated consecutive synthesis from CO2 or biomass to specific chemicals is shown to play a pivotal role, such as the H2 enhanced microbial electrosynthesis (MES), CO or formate mediated longer carbon chain products synthesis. Accordingly, the synthesis efficiency was improved significantly following the collaborative design of abiotic and biological catalysts, as well as the route innovation. For example, acetate productivity of 1330 g m-2 day-1 in MES and low cost of 45 g kWh-1 for producing butanol and hexanol could be achieved, which show great potential for industrial application. The integrative electrochemical and biological catalysis can convert CO2 or biomass feedstocks to a wide product distribution from C1 to C6+, and even large molecules such as sugars, lipid, starch, etc. This article exhibits the importance of integrative electrochemical and biological catalysis for efficient utilization of renewable carbon resources, the manners to integrate two different processes and some reflections for future research.
Grants:	European Commission 101000441
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Published in:	Sustainable energy & fuels, 2023 , ISSN 2398-4902

DOI: 10.1039/D3SE00876B

Available from: 2024-12-30 Postprint

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