ES Energy & Environments,
Journal Year:
2023,
Volume and Issue:
unknown
Published: Jan. 1, 2023
To
address
the
need
for
clean
and
sustainable
fuel
sources,
it
is
important
to
develop
a
highperformance,
low-cost
stable
non-noble
metal
electrocatalyst
water
splitting.Twodimensional
(2D)
materials,
namely
Layered
Double
Hydroxide
(LDH)
Mxene
have
gained
popularity
in
recent
years.Moreover,
combination
of
these
two
materials
has
been
found
effectively
issues
related
poor
conductivity,
limited
exposure
active
sites,
small
electrochemical
surface
areas
that
hindered
practical
application
LDH.In
this
review,
we
comprehensively
evaluate
advancements
made
development
MXene-based
LDH
hybrid
nanomaterials
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
overall
splitting
from
both
theoretical
standpoint.Additionally,
review
discusses
various
criteria
used
assess
electrocatalysts
mechanism
involved
water.Lastly,
potential
opportunities
future
challenges
hybrids
production
through
are
examined.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(11), P. 7119 - 7192
Published: Feb. 7, 2023
Since
severe
global
warming
and
related
climate
issues
have
been
caused
by
the
extensive
utilization
of
fossil
fuels,
vigorous
development
renewable
resources
is
needed,
transformation
into
stable
chemical
energy
required
to
overcome
detriment
their
fluctuations
as
sources.
As
an
environmentally
friendly
efficient
carrier,
hydrogen
can
be
employed
in
various
industries
produced
directly
(called
green
hydrogen).
Nevertheless,
large-scale
production
water
electrolysis
prohibited
its
uncompetitive
cost
a
high
specific
demand
electricity
expenses,
which
enhancing
corresponding
thermodynamics
kinetics
at
elevated
working
temperatures.
In
present
review,
effects
temperature
variation
are
primarily
introduced
from
perspective
cells.
Following
increasing
order
temperature,
multidimensional
evaluations
considering
materials
structures,
performance,
degradation
mechanisms
mitigation
strategies
well
stacks
systems
presented
based
on
alkaline
cells
polymer
electrolyte
membrane
(ET-AECs
ET-PEMECs),
ionic
conductors
(ET-ICs),
protonic
ceramic
(PCECs)
solid
oxide
(SOECs).
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(8), P. 4972 - 5019
Published: March 27, 2023
Scanning
electrochemical
probe
microscopy
(SEPM)
techniques
can
disclose
the
local
reactivity
of
interfaces
in
single-entity
and
sub-entity
studies.
Operando
SEPM
measurements
consist
using
a
tip
to
investigate
performance
electrocatalysts,
while
interface
is
simultaneously
modulated.
This
powerful
combination
correlate
activity
with
changes
surface
properties,
e.g.,
topography
structure,
as
well
provide
insight
into
reaction
mechanisms.
The
focus
this
review
reveal
recent
progress
catalytic
toward
reduction
evolution
O2
H2
conversion
CO2.
capabilities
SEPMs
are
showcased,
possibility
coupling
other
presented.
Emphasis
given
scanning
(SECM),
ion
conductance
(SICM),
tunneling
(EC-STM),
cell
(SECCM).
Chemical Communications,
Journal Year:
2024,
Volume and Issue:
60(39), P. 5104 - 5135
Published: Jan. 1, 2024
This
review
has
examined
the
advancements
and
challenges
in
development
of
transition
metal-based
electrocatalysts
for
alkaline
water
splitting
reaction
last
decade.
Nano-Micro Letters,
Journal Year:
2024,
Volume and Issue:
16(1)
Published: July 5, 2024
Green
hydrogen
from
electrolysis
of
water
has
attracted
widespread
attention
as
a
renewable
power
source.
Among
several
production
methods,
it
become
the
most
promising
technology.
However,
there
is
no
large-scale
system
currently
that
can
compete
with
conventional
fossil
fuel
production.
Renewable
energy
electrocatalytic
splitting
an
ideal
technology
environmental
cleanliness
protection
and
good
purity,
which
meet
requirements
future
development.
This
review
summarizes
introduces
current
status
by
three
aspects:
electricity,
catalyst
electrolyte.
In
particular,
present
situation
latest
progress
key
sources
power,
catalytic
materials
electrolyzers
for
are
introduced.
Finally,
problems
generation
electrolytic
directions
next-generation
green
in
discussed
outlooked.
It
expected
this
will
have
important
impact
on
field
water.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(15), P. 9136 - 9223
Published: July 22, 2024
The
electrocatalytic
oxygen
evolution
reaction
(OER)
supplies
the
protons
and
electrons
needed
to
transform
renewable
electricity
into
chemicals
fuels.
However,
OER
is
kinetically
sluggish;
it
operates
at
significant
rates
only
when
applied
potential
far
exceeds
reversible
voltage.
origin
of
this
overpotential
hidden
in
a
complex
mechanism
involving
multiple
electron
transfers
chemical
bond
making/breaking
steps.
Our
desire
improve
catalytic
performance
has
then
made
mechanistic
studies
an
area
major
scientific
inquiry,
though
complexity
understanding
difficult.
While
historically,
have
relied
solely
on
experiment
phenomenological
models,
over
past
twenty
years
ChemCatChem,
Journal Year:
2024,
Volume and Issue:
16(6)
Published: Jan. 29, 2024
Abstract
For
the
advancement
of
electrochemical
energy
conversion
and
storage
technologies,
bifunctional
electrocatalysts
are
crucial
for
efficiently
driving
both
oxygen
evolution
(OER)
reduction
reactions
(ORR).
Cobalt‐based
spinel
oxides
a
class
promising
electrocatalysts.
However
their
low
electrical
conductivity
stability
may
hinder
further
improvement.
A
novel
composite
material
composed
NiCo
2
O
4
nanoparticles
integrated
with
emerging
two
dimensional
MXene
nanosheets
(NiCo
/MXene)
was
developed.
The
successful
integration
brings
about
number
attractive
structural
features.
This
includes
synergistic
effects
between
MXene,
highly
accessible
surface
areas,
complete
exposure
numerous
active
sites,
excellent
electronic
conductivity,
all
which
collectively
contribute
to
desirability
OER
ORR.
synthesized
/MXene
showed
extraordinary
electrocatalytic
activity
lower
overpotential
360
mV
at
current
density
10
mA/cm
,
small
Tafel
slope
64
mV/dec
compared
+MXene
(physically
mixed).
Additionally,
displays
an
ORR
limiting
−4
exhibited
highest
onset
potential
half
wave
0.92
V
0.72
vs.
RHE,
respectively,
in
alkaline
media
