The
fairly
low
power
density,
mainly
resulting
from
poor
electroactive
bacteria
(EAB)
adhesion
and
the
sluggish
extracellular
electron
transfer
(EET)
at
anode
interface,
constrains
practical
implementation
of
microbial
fuel
cells
(MFCs).
Therefore,
properties
material
are
considered
to
be
a
crucial
factor
for
long-term
operational
performance
MFCs.
In
order
enhance
production
MFCs,
aerogel
composed
Fe,
N,
S
co-doped
carbon
nanofibers
(CNFs)
reduced
graphene
oxide
(rGO)
was
employed
as
high-performance
by
electrospinning,
high-temperature
pyrolysis
freeze-drying.
doping
N
elements
induced
formation
abundant
reactive
sites
on
CNFs,
which
enhanced
electrochemical
EET
process.
And
huge
area
samples
facilitated
dense
biofilms.
MFC
with
FeS/Fe3C@NCNFs/rGO-modified
achieved
maximum
density
2792.56
mW
m−2
highest
output
voltage
0.658
V,
both
were
significantly
higher
than
that
cloth
(773.97
0.443
V).
Considering
great
improvement
production,
it
has
considerable
potential
low-cost
but
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(19), P. 10371 - 10383
Published: Jan. 1, 2023
Weak
biofilm
colonization
and
sluggish
extracellular
electron
transfer
(EET)
between
the
anode
are
major
obstacles
to
achieving
high
power
density
in
microbial
fuel
cells
(MFCs).
SmartMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 16, 2024
Abstract
Microbial
fuel
cells
(MFCs)
benefit
from
the
introduction
of
iron
in
anode,
as
its
multiple
valence
states
and
high
electron‐catalytic
activity
led
to
improved
power
densities
MFCs.
However,
effect
long‐term
Fe
3+
release
into
electrolyte
on
density
MFCs
is
often
overlooked.
Herein,
an
anode
consisting
a
three‐dimensional
foam
uniformly
coated
by
reduced
graphene
oxide
(rGO/IF)
with
suitable
loading
(8
g/m
2
)
large
specific
surface
area
(0.05
m
/g)
for
high‐density
bacterial
was
prepared.
The
hybrid
based
rGO/IF
exhibit
maximum
5330
±
76
mW/m
contributed
galvanic
cells.
enables
continuous
during
discharging
As
result,
showed
2107
64
after
four
cycles,
facilitated
through
reversible
conversion
between
2+
accelerate
electron
transfer
efficiency.
results
indicate
that
can
be
used
designing
fabricating
high‐power
optimizing
rate
electrolyte.
