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Challenges to sustainable CO2-to-methane conversion in soil-based electromethanogenesis
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DOI：10.1016/j.seta.2026.105198.png)
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Abstract
En 中文
• Terracotta separator as low-cost alternative to expensive membranes. • Easy to assemble and to use terracotta bioelectrochemical system. • 45 ± 13% Coulombic Efficiency but low CH4 concentration in produced gas. • Terracotta supported active methanogenic community maintaining anoxic conditions. • Parasitic reactions and salt deposition reduced system efficiency.
Keywords:
Power-to-methane
Bioelectrochemical system
CO2 capture
Electromethanogenesis
Methane
Hydrogen
AEM
,
anion exchange membrane
BEP2M
,
bioelectrochemical power-to-methane
BES
,
bioelectrochemical system
CEM
,
cation exchange membrane
DAC
,
direct air capture
DET
,
direct electron transfer
DIET
,
direct interspecies electron transfer
GHG
,
greenhouse gas
HER
,
hydrogen evolution reaction
IET
,
indirect electron transfer
MES
,
microbial electrosynthesis cell
MFC
,
microbial fuel cell
PEM
,
proton exchange membrane
P2M
,
power-to-methane
STY
,
space–time yield
TRL
,
technology readiness level
VFA
,
volatile fatty acids
Journal
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4.4K
Citations:
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