ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(10), P. 4203 - 4212
Published: Feb. 23, 2024
The
world
is
facing
severe
environmental
pollution
and
energy
shortages.
Microbial
electrolysis
cells
(MECs)
provide
a
promising
solution
by
producing
H2
from
wastewater.
However,
MECs
face
limitations,
such
as
low
current
densities,
slow
production,
electrogenic
bacteria
deactivation
at
high
voltages.
In
this
study,
we
developed
microbial
water
(MWECs),
new
device
that
couples
with
(WE).
At
an
applied
voltage
of
2.2
V,
MWECs
achieved
industrial-level
density
400
mA/cm2,
fast
production
rate
121
L-H2/L/d,
consumption
5.93
kWh/m3.
Moreover,
the
protective
effect
abiotic
anode
in
enabled
microorganisms
to
maintain
robust
activity
voltages
MWECs,
Geobacter,
Azospirillum,
Paracoccus
dominant
genera.
This
led
2-fold
increase
chemical
oxygen
demand
(COD)
removal,
reaching
1.51
kg/m3/d,
compared
MECs.
study
demonstrated
feasibility
advantages
integrating
achieve
rates,
efficient
COD
removal
making
practical
applications
possible.
ACS Energy Letters,
Journal Year:
2024,
Volume and Issue:
9(6), P. 2922 - 2935
Published: May 25, 2024
Large-scale
adoption
of
proton
exchange
membrane
water
electrolyzers
(PEMWEs)
is
hindered
by
limited
durability
costly
anodic
iridium
(Ir)
electrocatalysts.
Therefore,
it
crucial
to
establish
a
strategy
that
can
decrease
the
Ir
loadings
without
compromising
performance
and
stability
for
extended
applications
PEMWEs.
Employing
high-surface-area
conductive
corrosion-resistant
catalyst
support
enhance
dispersion
low
loading,
thereby
maximizing
active
site
density
stabilizing
under
harsh
operating
conditions.
In
this
review,
we
explore
role
oxygen
evolution
electrocatalysts
summarizing
distinct
properties
various
supports
such
as
composition,
surface
area,
conductivity,
anticorrosion
strong
catalyst–support
interactions.
Finally,
articulate
our
perspectives
on
future
research
directions,
emphasizing
durability,
synergy
between
electrocatalyst
scale-up
fabrication
International Journal of Hydrogen Energy,
Journal Year:
2024,
Volume and Issue:
70, P. 474 - 492
Published: May 18, 2024
By
offering
promising
solutions
to
two
critical
issues
–
the
integration
of
renewable
energies
into
energy
systems
and
decarbonization
existing
hydrogen
applications
green
production
through
water
electrolysis
is
set
play
a
crucial
role
in
addressing
major
challenges
transition.
However,
successful
sources
relies
on
gaining
accurate
insights
impacts
that
intermittent
electrical
supply
conditions
induce
electrolyzers.
Despite
rising
importance
intermittency
accelerate
widespread
adoption
sources,
state-of-the-art
lacks
research
providing
an
in-depth
understanding
these
concerns.
This
paper
endeavors
offer
comprehensive
review
research,
focusing
proton
exchange
membrane
(PEM)
alkaline
technologies
operating
under
operation.
growing
interest
over
last
ten
years,
underscores
scarcity
industrial-scale
databases
for
quantifying
impacts.
Batteries,
Journal Year:
2023,
Volume and Issue:
9(1), P. 41 - 41
Published: Jan. 5, 2023
Aqueous
rechargeable
zinc
ion
batteries
(ZIBs)
have
been
revived
and
are
considered
a
promising
candidate
for
scalable
electrochemical
energy
storage
systems
due
to
their
intrinsic
safety,
low
cost,
large
abundance,
mature
recyclability,
competitive
performance,
sustainability.
However,
the
deployment
of
aqueous
ZIBs
is
still
hampered
by
poor
stability
reversibility
Zn
anodes,
which
common,
inherent
issue
most
metal-based
anodes.
This
review
presents
comprehensive
timely
overview
challenges
strategies
anodes
toward
durable
ZIBs.
First,
several
that
significantly
reduce
Coulombic
efficiency
cycling
briefly
discussed
including
dendrite
formation,
hydrogen
evolution,
corrosion.
Then,
mitigation
summarized
in
terms
modifying
electrode/electrolyte
interfaces,
designing
electrode
structures,
optimizing
electrolytes
separators.
Further,
we
comprehensively
discuss
mechanisms
behind
these
issues
improvement
with
respect
electrolytes,
Lastly,
provide
perspectives
critical
analyses
remaining
challenges,
outlook,
future
direction
accelerating
practical
application
ChemSusChem,
Journal Year:
2023,
Volume and Issue:
16(13)
Published: April 4, 2023
Abstract
Hydrogen
is
a
clean,
flexible,
powerful
energy
vector
that
can
be
leveraged
as
promising
alternative
to
fossil
fuels.
Additionally,
green
hydrogen
production
has
been
recognized
one
of
the
most
prevalent
solutions
decarbonize
system.
Water
electrolysis
studies
have
increased
throughout
decade
higher
industrial
interest
comes
into
play.
The
catalyst,
system
design,
and
configuration
act
in
congenial
manner
deliver
high‐performing
water
electrolysis.
Despite
performance
targets
peaking
at
high
current
densities,
status
electrolyzer
technologies
would
require
more
research
efforts
achieve
such
goals.
This
work
presents
comprehensive
review
how
catalysts
designs
enhanced
attain
density
Modification
strategies
catalysts,
advances
characterization
modelling,
optimizing
are
highlighted.
Furthermore,
this
paper
aims
elucidate
future
direction
bridge
laboratory‐to‐industry
gap.
Energies,
Journal Year:
2024,
Volume and Issue:
17(16), P. 4148 - 4148
Published: Aug. 21, 2024
In
recent
years,
global
efforts
towards
a
future
with
sustainable
energy
have
intensified
the
development
of
renewable
sources
(RESs)
such
as
offshore
wind,
solar
photovoltaics
(PVs),
hydro,
and
geothermal.
Concurrently,
green
hydrogen,
produced
via
water
electrolysis
using
these
RESs,
has
been
recognized
promising
solution
to
decarbonizing
traditionally
hard-to-abate
sectors.
Furthermore,
hydrogen
storage
provides
long-duration
approach
managing
intermittency
which
ensures
reliable
stable
electricity
supply
supports
electric
grid
operations
ancillary
services
like
frequency
voltage
regulation.
Despite
significant
progress,
economy
remains
nascent,
ongoing
developments
persistent
uncertainties
in
economic,
technological,
regulatory
aspects.
This
paper
comprehensive
review
value
chain,
encompassing
production,
transportation
logistics,
methodologies,
end-use
applications,
while
identifying
key
research
gaps.
Particular
emphasis
is
placed
on
integration
into
both
grid-connected
islanded
systems,
focus
operational
strategies
enhance
resilience
efficiency
over
long
short
terms.
Moreover,
this
draws
case
studies
from
pioneering
projects
inform
that
can
accelerate
adoption
large-scale
deployment
technologies
across
diverse
sectors
geographies.
