Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(25)
Published: April 3, 2024
Atomic
metal
catalysts
have
unique
electronic,
structural,
and
catalytic
properties,
which
are
widely
used
in
the
field
of
catalysis.
However,
designing
new
simple
synthesis
methods
to
fabricate
atomic
is
a
challenge
applications.
Herein,
one-step
precursor
combustion
strategy
presented
that
starts
directly
from
precursors
salts,
using
spontaneous
process
convert
platinum
nitrate
Pt
sites.
The
sites
with
low
valence
anchored
formed
interface
between
grains
on
vacancy-enriched
CeO
Angewandte Chemie International Edition,
Journal Year:
2023,
Volume and Issue:
62(34)
Published: March 15, 2023
Single-atom
catalysts
hold
the
potential
to
significantly
impact
chemical
sector,
pushing
boundaries
of
catalysis
in
new,
uncharted
directions.
These
materials,
featuring
isolated
metal
species
ligated
on
solid
supports,
can
exist
many
coordination
environments,
all
which
have
shown
important
functions
specific
transformations.
Their
emergence
has
also
provided
exciting
opportunities
for
mimicking
metalloenzymes
and
bridging
gap
between
homogeneous
heterogeneous
catalysis.
This
Review
outlines
impressive
progress
made
recent
years
regarding
use
single-atom
organic
synthesis.
We
illustrate
knowledge
gaps
search
more
sustainable,
earth-abundant
synthetic
applications.
Science Advances,
Journal Year:
2023,
Volume and Issue:
9(26)
Published: June 28, 2023
Manipulating
the
intrinsic
activity
of
heterogeneous
catalysts
at
atomic
level
is
an
effective
strategy
to
improve
electrocatalytic
performances
but
remains
challenging.
Here,
atomically
dispersed
Ni
anchored
on
CeO2
particles
entrenched
peanut-shaped
hollow
nitrogen-doped
carbon
structures
(a-Ni/CeO2@NC)
rationally
designed
and
synthesized.
The
as-prepared
a-Ni/CeO2@NC
catalyst
exhibits
substantially
boosted
greatly
reduced
overpotential
for
oxygen
evolution
reaction.
Experimental
theoretical
results
demonstrate
that
decoration
isolated
species
over
induces
electronic
coupling
redistribution,
thus
resulting
in
activation
adjacent
Ce
sites
around
atoms
accelerated
kinetics.
This
work
provides
a
promising
explore
regulation
improvement
level,
thereby
improving
activity.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Oct. 13, 2023
Abstract
Single-atom
catalysts
(SACs)
have
garnered
increasingly
growing
attention
in
renewable
energy
scenarios,
especially
electrocatalysis
due
to
their
unique
high
efficiency
of
atom
utilization
and
flexible
electronic
structure
adjustability.
The
intensive
efforts
towards
the
rational
design
synthesis
SACs
with
versatile
local
configurations
significantly
accelerated
development
efficient
sustainable
electrocatalysts
for
a
wide
range
electrochemical
applications.
As
an
emergent
coordination
avenue,
intentionally
breaking
planar
symmetry
by
adding
ligands
axial
direction
metal
single
atoms
offers
novel
approach
tuning
both
geometric
structures,
thereby
enhancing
electrocatalytic
performance
at
active
sites.
In
this
review,
we
briefly
outline
burgeoning
research
topic
axially
coordinated
provide
comprehensive
summary
recent
advances
synthetic
strategies
Besides,
challenges
outlooks
field
also
been
emphasized.
present
review
provides
in-depth
understanding
SACs,
which
could
bring
new
perspectives
solutions
fine
regulation
structures
catering
high-performing
electrocatalysis.
ACS Nano,
Journal Year:
2024,
Volume and Issue:
18(5), P. 4256 - 4268
Published: Jan. 24, 2024
Dual-atom
catalytic
sites
on
conductive
substrates
offer
a
promising
opportunity
for
accelerating
the
kinetics
of
multistep
hydrogen
and
oxygen
evolution
reactions
(HER
OER,
respectively).
Using
MXenes
as
is
strategy
depositing
those
dual-atom
electrocatalysts,
if
efficient
surface
anchoring
ensuring
metal-substrate
interactions
sufficient
mass
loading
established.
We
introduce
surface-modification
MXene
by
preadsorbing
L-tryptophan
molecules,
which
enabled
attachment
Co/Ni
electrocatalyst
at
Ti3C2Tx
forming
N–Co/Ni-O
bonds,
with
reaching
high
5.6
wt
%.
The
electron
delocalization
resulting
from
terminated
O
atoms
substrates,
N
in
moieties,
metal
Co
Ni
provides
an
optimal
adsorption
strength
intermediates
boosts
HER
OER
kinetics,
thereby
notably
promoting
intrinsic
activity
electrocatalyst.
CoNi-Ti3C2Tx
displayed
overpotentials
31
241
mV
10
mA
cm–2,
respectively.
Importantly,
also
exhibited
operational
stability
both
over
100
h
industrially
relevant
current
density
500
cm–2.
Our
study
provided
guidance
constructing
active
to
synergistically
enhance
electrochemical
efficiency
energy
conversion
storage
systems.
Electrochemical Energy Reviews,
Journal Year:
2024,
Volume and Issue:
7(1)
Published: May 7, 2024
Abstract
For
energy
storage
technologies,
secondary
batteries
have
the
merits
of
environmental
friendliness,
long
cyclic
life,
high
conversion
efficiency
and
so
on,
which
are
considered
to
be
hopeful
large-scale
technologies.
Among
them,
rechargeable
lithium-ion
(LIBs)
been
commercialized
occupied
an
important
position
as
due
their
density
life.
Nevertheless,
uneven
distribution
lithium
resources
a
large
number
continuous
consumptions
result
in
price
increase
for
lithium.
So,
it
is
very
crucial
seek
develop
alternative
with
abundant
reserves
low
cost.
As
one
best
substitutes
widely
LIBs,
sodium-ion
(SIBs)
display
gorgeous
application
prospects.
However,
further
improvements
SIB
performance
still
needed
aspects
energy/power
densities,
fast-charging
capability
stability.
Electrode
materials
locate
at
central
SIBs.
In
addition
electrode
materials,
electrolytes,
conductive
agents,
binders
separators
imperative
practical
this
review,
latest
progress
challenges
applications
SIBs
reviewed.
Firstly,
anode
cathode
symmetrically
summarized
from
design
strategies
synthesis,
electrochemical
active
sites,
surrounding
environments
reaction
mechanisms
characterization
methods.
Secondly,
influences
on
elucidated.
Finally,
technical
summarized,
possible
future
research
directions
overcoming
proposed
developing
applications.
Graphical
abstract
