Green Energy & Environment,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 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.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(28)
Published: June 11, 2023
Abstract
Designing
efficient
bifunctional
electrocatalysts
with
excellent
activity
and
robust
stability
presents
a
central
challenge
for
the
large‐scale
commercialization
of
water
electrolysis.
Herein,
facile
approach
is
reported
construct
atomically
thin
amorphous
RuM
(MCo,
Fe,
or
Ni)
bimetallenes
as
high‐performance
toward
both
electrochemical
hydrogen
evolution
reaction
(HER)
oxygen
(OER).
The
RuCo
bimetallene
manifests
characterized
by
low
required
overpotentials,
superior
price
activity,
durability
well
cell
potential
splitting
performance,
outperforming
Pt/C
RuO
2
benchmark
catalysts.
Combined
operando
X‐ray
absorption
spectroscopy
investigation
theoretical
simulations
reveal
synergism
taking
place
between
binary
constituents,
in
which
Co
serves
promotive
role
along
HER/OER
pathway,
contributing
via
optimal
binding
to
*OH
dissociation
modulating
Ru
electronic
structure
favorably,
hence
rendering
high
catalytic
centers
alkaline
HER
OER.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(23), P. 9543 - 9573
Published: Jan. 1, 2023
The
development
of
sustainable
energy
technologies
has
received
considerable
attention
to
meet
increasing
global
demands
and
realise
organisational
goals
(
e.g.
,
United
Nations,
the
Paris
Agreement)
carbon
neutrality.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(21)
Published: Feb. 11, 2024
Abstract
A
new
strategy
that
can
effectively
increase
the
nitrogen
reduction
reaction
performance
of
catalysts
is
proposed
and
verified
by
tuning
coordination
number
metal
atoms.
It
found
intrinsic
activity
Mn
atoms
in
manganese
borides
(MnB
x
)
increases
tandem
with
their
B
Electron‐deficient
boron
are
capable
accepting
electrons
from
atoms,
which
enhances
adsorption
N
2
on
catalytic
sites
(*)
hydrogenation
to
form
*NNH
intermediates.
Furthermore,
reduces
charge
density
at
Fermi
level,
facilitates
desorption
ammonia
catalyst
surface.
Notably,
MnB
4
compound
a
up
12
exhibits
high
yield
rate
(74.9
±
2.1
µg
h
−1
mg
cat
Faradaic
efficiency
(38.5
2.7%)
−0.3
V
versus
reversible
hydrogen
electrode
(RHE)
0.1
m
Li
SO
electrolyte,
exceeding
those
reported
for
other
boron‐related
catalysts.
Carbon Energy,
Journal Year:
2023,
Volume and Issue:
5(12)
Published: Dec. 1, 2023
Abstract
Water‐splitting
reactions
such
as
the
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER)
typically
require
expensive
noble
metal‐based
electrocatalysts.
This
has
motivated
researchers
to
develop
novel,
cost‐effective
electrocatalytic
systems.
In
this
study,
a
new
multicomponent
nanocomposite
was
assembled
by
combining
functionalized
multiwalled
carbon
nanotubes,
Cu‐based
metal–organic
framework
(MOF)
(HKUST‐1
or
HK),
sulfidized
NiMn‐layered
double
hydroxide
(NiMn‐S).
The
resulting
nanocomposite,
abbreviated
MW/HK/NiMn‐S,
features
unique
architecture,
high
porosity,
numerous
electroactive
Cu/Ni/Mn
sites,
fast
charge
transfer,
excellent
structural
stability,
conductivity.
At
current
density
of
10
mA
cm
−2
,
dual‐function
electrocatalyst
shows
remarkable
performance,
with
ultralow
overpotential
values
163
mV
73
(HER),
well
low
Tafel
slopes
(57
75
dec
−1
respectively).
Additionally,
its
turnover
frequency
(4.43
s
for
OER;
3.96
HER)
are
significantly
superior
those
standard
Pt/C
IrO
2
synergistic
effect
nanocomposite's
different
components
is
responsible
enhanced
performance.
A
functional
theory
study
revealed
that
multi‐interface
heterostructure
contribute
increased
electrical
conductivity
decreased
energy
barrier,
in
HER/OER
activity.
presents
novel
vision
designing
advanced
electrocatalysts
performance
water
splitting.
Various
composites
have
been
utilized
water‐splitting
applications.
investigates
use
MW/HK/NiMn‐S
splitting
first
time
indicate
between
carbon‐based
materials
along
layered
compounds
porous
MOF.
each
component
composite
can
be
an
interesting
topic
field
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(16)
Published: Jan. 10, 2024
Abstract
Single‐atom
catalysts
(SACs)
are
demonstrated
to
show
exceptional
reactivity
and
selectivity
in
catalytic
reactions
by
effectively
utilizing
metal
species,
making
them
a
favorable
choice
among
the
different
active
materials
for
energy
conversion.
However,
SACs
still
early
stages
of
conversion,
problems
like
agglomeration
low
conversion
efficiency
hampering
their
practical
applications.
Substantial
research
focus
on
support
modifications,
which
vital
SAC
stability
due
intimate
relationship
between
atoms
support.
In
this
review,
category
supports
variety
surface
engineering
strategies
employed
SA
systems
summarized,
including
site
(heteroatom
doping,
vacancy
introducing,
groups
grafting,
coordination
tunning)
structure
(size/morphology
control,
cocatalyst
deposition,
facet
engineering,
crystallinity
control).
Also,
merits
single‐atom
systematically
introduced.
Highlights
comprehensive
summary
discussions
utilization
surface‐engineered
diversified
applications
photocatalysis,
electrocatalysis,
thermocatalysis,
devices.
At
end
potential
obstacles
using
field
discussed.
This
review
aims
guide
rational
design
manipulation
target‐specific
capitalizing
characteristic
benefits
engineering.
Small,
Journal Year:
2024,
Volume and Issue:
20(32)
Published: March 12, 2024
Abstract
Electrochemical
conversion
of
nitrate,
a
prevalent
water
pollutant,
to
ammonia
(NH
3
)
is
delocalized
and
green
path
for
NH
production.
Despite
the
existence
different
nitrate
reduction
pathways,
selectively
directing
reaction
pathway
on
road
now
hindered
by
absence
efficient
catalysts.
Single‐atom
catalysts
(SACs)
are
extensively
investigated
in
wide
range
catalytic
processes.
However,
their
application
electrocatalytic
(NO
−
RR)
infrequent,
mostly
due
pronounced
inclination
toward
hydrogen
evolution
(HER).
Here,
Ni
single
atoms
electrochemically
active
carrier
boron,
nitrogen
doped‐graphene
(BNG)
matrix
modulate
atomic
coordination
structure
through
boron‐spanning
strategy
enhance
performance
NO
RR
designed.
Density
functional
theory
(DFT)
study
proposes
that
BNG
supports
with
ionic
characteristics,
offer
surplus
electric
field
effect
as
compared
N‐doped
graphene,
which
can
ease
adsorption.
Consistent
theoretical
studies,
as‐obtained
NiSA@BNG
shows
higher
activity
maximal
yield
rate
168
µg
h
−1
cm
−2
along
Faradaic
efficiency
95%
promising
electrochemical
stability.
This
reveals
novel
ways
rationally
fabricate
SACs'
tunable
electronic
properties
performance.
