Green Energy & Environment,
Год журнала:
2024,
Номер
unknown
Опубликована: Июль 1, 2024
High-entropy
materials
(HEMs)
have
managed
to
make
their
mark
in
the
field
of
electrocatalysis.
The
flexibly
adjustable
component,
unique
configuration
and
proprietary
core
effect
endow
HEMs
with
excellent
functional
feature,
superior
stability
fast
reaction
kinetics.
Recently,
relationship
between
compositions
structures
high-entropy
catalysts
electrocatalytic
performances
has
been
extensively
investigated.
Based
on
this
motivation,
we
comprehensively
systematically
summarize
HEMs,
outline
intrinsic
properties
electrochemical
advantages,
generalize
current
state-of-the-art
synthetic
methods,
analyze
active
centers
conjunction
characterization
techniques,
utilize
theoretical
research
conduct
a
high-throughput
screening
targeted
catalyst
exploration
mechanisms,
importantly,
focus
specially
applications
propose
strategies
for
regulating
electronic
structure
accelerate
kinetics,
including
morphological
control,
defect
engineering,
element
regulation,
strain
engineering
so
forth.
Finally,
provide
our
personal
views
challenges
further
technical
improvements
catalysts.
This
work
can
valuable
guidance
future
electrocatalysts.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(9), С. 11812 - 11826
Опубликована: Фев. 21, 2023
TM-Nx
is
becoming
a
comforting
catalytic
center
for
sustainable
and
green
ammonia
synthesis
under
ambient
conditions,
resulting
in
increasing
interest
single-atom
catalysts
(SACs)
the
electrochemical
nitrogen
reduction
reaction
(NRR).
However,
given
poor
activity
unsatisfactory
selectivity
of
existing
catalysts,
it
remains
long-standing
challenge
to
design
efficient
fixation.
Currently,
two-dimensional
(2D)
graphitic
carbon-nitride
substrate
provides
abundant
evenly
distributed
holes
stably
supporting
transition-metal
atoms,
which
presents
fascinating
prospect
overcoming
this
promoting
NRR.
An
emerging
holey
skeleton
with
C10N3
stoichiometric
ratio
(g-C10N3)
from
supercell
graphene
constructed,
outstanding
electric
conductivity
achieving
high-efficiency
NRR
due
Dirac
band
dispersion.
Herein,
high-throughput
first-principles
calculation
carried
out
evaluate
feasibility
π-d
conjugated
SACs
single
TM
atom
anchored
on
g-C10N3
(TM
=
Sc-Au)
We
find
that
W
metal
embedded
(W@g-C10N3)
can
compromise
ability
adsorb
key
target
species
(N2H
NH2),
hence
acquiring
an
optimal
behavior
among
27
TM-candidates.
Our
calculations
demonstrate
W@g-C10N3
shows
well-suppressed
HER
and,
impressively,
low
energy
cost
-0.46
V.
Additionally,
all-around
descriptors
are
proposed
uncover
fundamental
mechanism
activity,
3D
volcano
plot
(limiting
potential,
screening
strategy,
electron
origin)
uncovers
trend,
quick
prescreening
numerous
candidates.
Overall,
strategy
structure-
activity-based
TM-Nx-containing
unit
will
offer
useful
insight
further
theoretical
experimental
attempts.
Inorganic Chemistry,
Год журнала:
2023,
Номер
62(30), С. 12119 - 12129
Опубликована: Июль 20, 2023
Based
on
the
principle
of
heterogeneous
catalysis
for
water
electrolysis,
electrocatalysts
with
appropriate
electronic
structure
and
photothermal
property
are
expected
to
drive
oxygen
evolution
reaction
effectively.
Herein,
amorphous
NiSx-coupled
nanourchin-like
Co3O4
was
prepared
nickel
foam
(NiSx@Co3O4/NF)
investigated
as
a
electrocatalyst
photothermal-assisted
reaction.
The
experimental
investigations
simulant
calculations
jointly
revealed
NiSx@Co3O4/NF
be
suitable
high
near-infrared
conversion
capability
achieve
advantageously
both
in
thermodynamics
kinetics.
Relative
Co3O4/NF
NiSx/NF,
better
activity,
kinetics,
stability
were
achieved
1.0
M
KOH
owing
NiSx/Co3O4
synergetic
effect.
In
addition,
performance
can
obviously
enhanced
under
light
irradiation,
since
NiSx@Co3O4
absorb
produce
electric
thermal
field.
For
photothermal-mediated
reaction,
overpotential
Tafel
slope
at
50
mA
cm-2
reduced
by
23
mV
13
mV/dec,
respectively.
present
work
provides
an
inspiring
reference
design
develop
electrolysis
using
abundant
solar
energy.
ACS Materials Letters,
Год журнала:
2024,
Номер
6(7), С. 3090 - 3111
Опубликована: Июнь 20, 2024
Electrocatalytic
water
splitting
is
commonly
regarded
as
a
sustainable
and
clean
method
to
generate
hydrogen
oxygen,
which
deemed
be
efficient
for
the
utilization
of
renewable
energy.
Electrocatalysts
are
essential
components
enhance
electrochemical
efficiency
optimize
product
yield.
Hollow
micro/nanostructures
possess
large
specific
surface
areas,
multiple
voids,
tunable
chemical
compositions,
making
them
suitable
use
direct
catalysts
or
supports
reactions.
This
review
summarizes
recent
advancements
in
structural
functional
designs
micro/nanostructured
hollow
materials
electrocatalysts
an
enhanced
water-splitting
process.
We
emphasize
ideas
strategies
create
various
oxygen/hydrogen
evolution
processes.
Subsequently,
comprehensive
summary
studies
on
borides,
carbides,
oxides,
phosphides,
selenides,
sulfides,
alloys,
MXenes,
heterostructured
containing
hosts
provided.
Furthermore,
we
highlight
current
challenges
perspectives
electrocatalytic
splitting.
Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
The
global
goal
for
decarbonization
of
the
energy
sector
and
chemical
industry
could
become
a
reality
by
massive
increase
in
renewable-based
technologies.
For
this
clean
transition,
versatile
green
ammonia
may
play
key
role
future
as
fossil-free
fertilizer,
long-term
storage
medium,
feedstock,
burning
fuel
transportation
decentralized
power
generation.
high
energy-intensive
industrial
production
has
triggered
researchers
to
look
step
change
new
synthetic
approaches
powered
renewable
energies.
This
review
provides
comprehensive
comparison
light-mediated
N
