Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(18)
Published: Feb. 27, 2024
Abstract
In
light
of
the
profound
shift
toward
renewable
fuels,
dual‐atom
catalysts
(DACs)
are
impressively
prospected
as
auspicious
for
electrocatalysis
revitalization,
accomplishing
environmental
remediation
and
sustainable
global
energy
security.
Leveraging
appealing
attributes
such
inspiring
synergistic
effect,
additional
adjacent
adsorption
sites,
ultrahigh
atom
utilization,
DACs
endowed
with
unprecedented
stability,
activity,
selectivity
in
multifarious
energy‐related
applications.
By
virtue
addressing
time
technological
prominence
to
review
this
ground‐breaking
atomic
electrocatalyst,
first
encompasses
a
correlation
elucidation
between
substrate,
dual‐atoms,
facile
synthetic
approaches
intriguing
modification
strategies.
Furthermore,
state‐of‐the‐art
characterization
techniques
specially
employed
spotlighted,
alongside
rigorously
unveiling
novel
mechanistic
insights’
milestone
gained
from
both
theoretical
modeling
experimental
research
multitudes
environmentally
benign
electrocatalytic
applications,
including
O
2
reduction,
CO
H
evolution,
N
other
fundamental
reactions.
As
final
note,
presents
brief
conclusion
highlighting
current
challenges
outlining
prospects
frontier.
Importantly,
deciphers
structure‐performance
while
excavating
advancement
DACs,
thus
is
anticipated
shed
catalysis
community
on
bolstering
an
intense
evolution
triggering
sapient
inspiration
more
robust
next‐generation
catalysts.
Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(39)
Published: Aug. 23, 2022
Abstract
Single‐atom‐alloys
(SAAs),
as
an
emerging
kind
of
materials,
combine
the
advantages
alloy
and
single‐atom
catalysts.
The
full
atomic
utilization
active
sites
well‐defined
bonding
environments
in
SAAs
lead
to
superior
electrocatalytic
performance
give
a
deep
insight
into
structural–activity
relationship.
In
this
review,
recent
advances
various
electrochemical
reactions
are
highlighted
for
further
designing
highly
effective
electrocatalysts.
This
review
starts
with
introduction
fundamental
concepts
several
effects,
which
influence
activities.
Then
preparation
characterization
methods
on
listed
compared.
Next,
hydrogen
evolution
reaction,
oxygen
reduction
alcohol/hydrogen/formic
acid
oxidation
carbon
dioxide
etc.
illustrated
discussed
detail.
Finally,
challenges
suggestions
future
development
energy‐conversion
electrocatalysis
presented.
Small Structures,
Journal Year:
2022,
Volume and Issue:
4(3)
Published: Oct. 27, 2022
Continuous
consumption
of
fossil
energy
and
excessive
CO
2
emission
severely
restrict
human
society.
Sustainable
carbon
cycle
is
a
promising
technology
to
simultaneously
relieve
greenhouse
effect
crisis
based
on
electrocatalysis
photocatalysis.
However,
the
conversion
efficiency
confined
by
poor
carriers
utilization
insufficient
reactive
sites.
Single‐atom
catalysts
(SACs)
display
outstanding
performance
in
effectively
overcoming
aforementioned
problems.
Herein,
recent
advances
SACs
for
enhancing
efficiency,
selectivity,
long‐range
stability
reduction
are
provided.
First,
characteristics
have
been
introduced
detail
provide
rational
design
relationship
between
structure
performance,
including
type,
structure,
synthesis
SACs.
Then,
high
electrocatalytic,
photocatalytic,
thermocatalytic
has
discussed
disclosing
reaction
mechanism,
such
as
charge
transfer,
activation
barriers,
pathway.
In
particular,
strategies
summarized
deep
insight
into
designing
developing
more
efficient
Finally,
an
outlook
current
challenges
perspectives
proposed.
This
review
aims
systematic
reference
advanced
catalytic
conversion.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(7), P. 3315 - 3363
Published: Jan. 1, 2023
This
article
discusses
the
relationship
between
single-atom
sites
and
catalytic
mechanism
of
functional
MOFs
which
is
related
to
coordination
environment
metal
ions,
also
summarizes
research
progress
MOF-derived
SACs
in
recent
years.
ACS Catalysis,
Journal Year:
2022,
Volume and Issue:
12(15), P. 9397 - 9409
Published: July 18, 2022
Diatomic
catalysts,
particularly
those
with
heteronuclear
active
sites,
have
recently
attracted
considerable
attention
for
their
advantages
over
single-atom
catalysts
in
reactions
involving
multielectron
transfers.
Herein,
we
report
bimetallic
iridium–iron
diatomic
(IrFe–N–C)
derived
from
metal–organic
frameworks
a
facile
wet
chemical
synthesis
followed
by
postpyrolysis.
We
use
various
advanced
characterization
techniques
to
comprehensively
confirm
the
atomic
dispersion
of
Ir
and
Fe
on
nitrogen-doped
carbon
support
presence
pairs.
The
as-obtained
IrFe–N–C
shows
substantially
higher
electrocatalytic
performance
both
oxygen
reduction
reaction
(ORR)
evolution
(OER)
when
compared
counterparts
(i.e.,
Ir–N–C
Fe–N–C),
revealing
favorable
bifunctionality.
Consequently,
is
used
as
an
air
cathode
zinc–air
batteries,
which
display
much
better
than
batteries
containing
commercial
Pt/C
+
RuO2
benchmark
catalysts.
Our
synchrotron-based
X-ray
absorption
spectroscopy
experiments
density
functional
theory
(DFT)
calculations
suggest
that
IrFe
dual
atoms
presumably
exist
IrFeN6
configuration
where
coordinates
four
N
two
are
shared
IrN4
FeN4
moieties.
Furthermore,
site
contributes
mainly
ORR,
while
plays
more
important
role
OER.
dual-atom
sites
work
synergistically,
reducing
energy
barrier
rate-determining
step
eventually
boosting
reversible
electrocatalysis.
hold
great
potential
electrochemical
storage
conversion
devices.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(9), P. 5617 - 5667
Published: April 25, 2024
The
quest
to
identify
precious
metal
free
hydrogen
evolution
reaction
catalysts
has
received
unprecedented
attention
in
the
past
decade.
In
this
Review,
we
focus
our
recent
developments
reactions
acidic
and
alkaline
electrolyte
owing
their
relevance
commercial
near-commercial
low-temperature
electrolyzers.
We
provide
a
detailed
review
critical
analysis
of
catalyst
activity
stability
performance
measurements
metrics
commonly
deployed
literature,
as
well
best
practices
for
experimental
(both
half-cell
three-electrode
configurations
two-electrode
device
testing).
particular,
discuss
transition
from
laboratory-scale
(HER)
those
single
cells,
which
is
aspect
crucial
scaling
up
laboratory
industrial
settings
but
often
overlooked.
Furthermore,
numerous
design
strategies
across
HER
literature.
Subsequently,
showcase
some
most
investigated
families
catalysts;
molybdenum
disulfide-based,
phosphides,
carbides
electrolyte;
nickel
phosphides
alkaline.
This
includes
comprehensive
comparing
between
several
materials
highlighting
stagnation
with
regards
enhancing
intrinsic
catalysts.
Finally,
summarize
future
directions
recommendations
field
area
electrocatalysis.
Journal of Physics D Applied Physics,
Journal Year:
2022,
Volume and Issue:
55(20), P. 203001 - 203001
Published: Jan. 13, 2022
Abstract
Due
to
the
excellent
activity,
selectivity,
and
stability,
atomically
dispersed
metal
catalysts
with
well-defined
structures
have
attracted
intensive
research
attention.
As
extension
of
single-atom
catalyst,
double-atom
catalyst
(DAC)
featuring
dimer
anchored
on
a
suitable
substrate
has
recently
emerged
as
focus
for
energy-related
electrocatalysis
reactions.
flexible
dual-metal
sites
synergetic
effect
between
two
atoms
in
DACs,
there
are
more
possibilities
adjust
their
geometrical
configurations
electronic
structures.
The
wide
tunability
active
could
offer
opportunities
optimize
binding
strength
reaction
intermediates
thus
catalytic
activity
and/or
selectivity
chemical
Moreover,
neighboring
provide
platform
perform
complex
involving
bond
coupling.
This
review
aims
summarize
recent
advance
theoretical
DACs
diverse
electrocatalytic
It
starts
brief
introduction
DACs.
Then
an
overview
main
experimental
synthesis
strategies
is
provided.
Emphatically,
performance
together
underlying
mechanism
different
reactions,
including
nitrogen
reduction
reaction,
carbon
dioxide
oxygen
hydrogen
evolution
highlighted
by
discussing
how
outstanding
attributes
mentioned
above
affect
pathway,
product
selectivity.
Finally,
challenges
development
prospected
shed
fresh
light
rational
design
efficient
at
atomic
scale
future.
