Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Improving microbial electrosynthesis with biochar electrodes in production of CO<sub>2</sub> derived biochemicals and biofuels within circular economy systems

Ning Xue, Deepa Sachan, Archishman Bose, David Wall, Jerry D. Murphy

RSC Sustainability · 2025

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Summary

This research investigates the use of waste-derived biochar as electrode material to enhance microbial electrosynthesis — a bioelectrochemical process for converting CO₂ into valuable biochemicals and biofuels. Biochar electrodes improve electron transfer kinetics whilst reducing material costs and supporting circular economy principles by utilising waste streams. The work addresses key scalability and sustainability challenges in CO₂ valorisation technologies.

UK applicability

The findings are potentially relevant to UK circular economy and net-zero policy objectives, particularly for industrial biotechnology applications and waste valorisation. However, applicability to farming systems and soil health is indirect; the technology operates in controlled laboratory settings rather than agricultural contexts.

Key measures

Electron transfer efficiency, cost-effectiveness metrics, scalability parameters, biochemical and biofuel production yields

Outcomes reported

The study evaluated waste-derived biochar electrodes in microbial electrosynthesis systems, measuring their effectiveness in electron transfer, cost-effectiveness, and scalability for converting CO₂ into biochemicals and biofuels.

Theme
Climate & resilience
Subject
Climate & greenhouse gas mitigation
Study type
Research
Study design
Research
Source type
Peer-reviewed study
Status
Published
System type
Laboratory / in vitro
DOI
10.1039/d5su00140d
Catalogue ID
SNmov0fuzi-ck3szl

Topic tags

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