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Challenges to sustainable CO2-to-methane conversion in soil-based electromethanogenesis

delete2026-07-08
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PRE
AI
G
Gabriele Soggia
A
Andrea Goglio
G
Gabriella Caucia
S
Stefano Ravasi
F
Francesco Pini
M
Marcella Balordi
E
Enrico Malgrati
F
Fabrizio Adani
P
Pierangela Cristiani *
DOI:10.1016/j.seta.2026.105198delete
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Abstract

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

Sustainable Energy Technologies and Assessments cover
Sustainable Energy Technologies and Assessments
IF:
7
Papers:
4.4K
Citations:
2.2W

Organization

S
sistema energetico s.p.a.
Scholars:
6
Papers: 1
Citations: 0
U
University of Milan
Scholars:
5.0W
Papers: 3.9W
Citations: 5.0W
U
università degli studi di milano-bicocca
Scholars:
93
Papers: 33
Citations: 1
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