ChemCatChem,
Journal Year:
2024,
Volume and Issue:
16(16)
Published: March 11, 2024
Abstract
Carbon
dots
(CDs)
have
attracted
much
attention
in
the
field
of
electrocatalysis
due
to
their
many
advantages.
These
reactions
are
great
significance
for
energy
conversion
and
storage,
as
well
environmental
remediation.
In
this
review,
we
summarize
latest
achievements
electrochemical
applications
CDs
composites,
with
a
focus
on
environmentally
relevant
electrocatalysis.
We
present
some
representative
examples
CDs‐based
electrocatalysts
different
analyze
catalytic
mechanisms
factors
that
affect
electrocatalytic
performance.
Furthermore,
conclude
challenging
issues
future
perspectives
emerging
material.
This
review
aims
help
readers
better
understand
application
electrocatalysis,
reveal
reasons
performance,
guide
further
constructing
more
efficient,
stable,
green
electrocatalysts.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(24)
Published: April 10, 2024
Abstract
Developing
seawater‐based
high‐performance
oxygen
reduction
reaction
(ORR)
electrocatalysts
is
meaningful
to
renewable
energy
storage
and
conversion,
the
Fe‐based
derivatives
encapsulated
by
nitrogen
(N)
doped
carbon
are
typical
representative.
Nevertheless,
unrevealing
mechanism
of
N
configuration
ORR
activity
chlorine
resistance
still
a
great
challenge.
In
this
work,
feasible
strategy
developed
prepare
controllable
pyridinic/pyrrolic‐N
carbon‐coated
(Fe
x
N‐NC).
Drawing
support
from
H
3
PO
4
blocking
based
in
situ
Fourier
transform
infrared
spectroscopy
(FTIR)
test
density‐functional
theory
(DFT)
calculation,
tandem
effect
pyridinic‐N
pyrrolic‐N
on
proved.
Additionally,
low
hydrogen
peroxide
(H
2
O
)
yield
4e
−
pathway
Fe
N‐NC
demonstrate
that
doping
effectively
reduces
adsorption
Cl
,
which
consistent
with
DFT.
The
half‐wave
potential
(E
1/2
for
reaches
0.874
V
alkaline
seawater,
ZABs
assembled
as
air
cathode
deliver
remarkable
power
density
(162
mW
cm
−2
),
along
excellent
long‐term
durability
(>400
h).
Small,
Journal Year:
2024,
Volume and Issue:
20(23)
Published: Jan. 6, 2024
Abstract
Low‐cost
and
high‐efficiency
non‐precious
metal‐based
oxygen
reduction
reaction
(ORR)/oxygen
evolution
(OER)
bifunctional
catalysts
are
the
key
to
promoting
commercial
application
of
metal–air
batteries.
Herein,
a
highly
efficient
catalyst
Fe
0.18
Co
0.82
alloy
anchoring
on
nitrogen‐doped
porous
carbon
hollow
sphere
(Fe
x
1‐x
/N‐C)
is
intelligently
designed
by
spray
pyrolysis
(SP).
The
zinc
in
SP‐derived
metal
oxides
metal‐organic
framework
volatilize
at
high
temperature
construct
hierarchical
structure
with
abundant
defects
fully
exposes
FeCo
nanoparticles
which
uniformly
anchor
substrate.
In
this
structure,
coexistence
binary
active
sites
(Fe‐N
/Co‐N
)
guarantees
0.2
0.8
/N‐C
exhibiting
an
excellent
half‐wave
potential
(
E
1/2
═
0.84
V)
superior
20%
Pt/C
for
ORR
suppressed
overpotential
(280
mV)
than
RuO
2
OER.
Assembled
rechargeable
Zn–air
battery
(RZAB)
demonstrates
promising
specific
capacity
807.02
mAh
g
−1
,
peak
power
density
159.08
mW
cm
−2
durability
without
electrolyte
circulation
(550
h).
This
work
proposes
design
concept
utilizing
oxide
core
situ
consume
shell
defects,
benefits
from
achieving
precise
control
mass
preparation.
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
ABSTRACT
Carbon
electrocatalyst
materials
based
on
lignocellulosic
biomass
with
multi‐components,
various
dimensions,
high
carbon
content,
and
hierarchical
morphology
structures
have
gained
great
popularity
in
electrocatalytic
applications
recently.
Due
to
the
catalytic
deficiency
of
neutral
atoms,
usage
single
lignocellulosic‐based
electrocatalysis
involving
energy
storage
conversion
presents
unsatisfactory
applicability.
However,
atomic‐level
modulation
lignocellulose‐based
can
optimize
electronic
structures,
charge
separation,
transfer
processes,
so
forth,
which
results
substantially
enhanced
performance
carbon‐based
catalysts.
This
paper
reviews
recent
advances
rational
design
as
electrocatalysts
from
an
perspective,
such
self/external
heteroatom
doping
metal
modification.
Then,
through
systematic
discussion
principles
reaction
mechanisms
catalysts,
prepared
catalysts
rechargeable
batteries
are
reviewed.
Finally,
challenges
improving
prospects
diverse
review
contributes
synthesis
strategy
via
modulation,
turn
promotes
lignocellulose
valorization
for
conversion.
Nature Communications,
Journal Year:
2025,
Volume and Issue:
16(1)
Published: March 25, 2025
Renewable
biomass
serves
as
a
cost-effective
source
of
carbon
matrix
to
carry
single-atom
catalysts
(SACs).
However,
the
natural
abundant
oxygen
in
these
materials
hinders
sufficient
dispersion
element
with
high
affinity
such
iron
(Fe).
The
lowered-density
and
oxidized
SACs
greatly
limits
their
catalytic
applications.
Here
we
develop
facile
continuous
activation
(CA)
approach
for
synthesizing
robust
biomass-derived
Fe-SACs.
Comparing
traditional
pyrolysis
method,
CA
significantly
increases
Fe
loading
density
from
1.13
atoms
nm−2
4.70
nm−2.
Simultaneously,
induces
distinct
coordination
tuning
dominated
Fe-O
Fe-N
moieties.
We
observe
pH-universal
reduction
reaction
(ORR)
performance
over
CA-derived
Fe-SACs
half-wave
potential
0.93
V
0.78
vs.
RHE
alkaline
acidic
electrolyte,
respectively.
Density
functional
theory
calculations
further
reveal
that
increased
effectively
reduces
energy
barriers
ORR,
thus
enhancing
activity.
Fe-SACs-based
zinc-air
batteries
show
specific
capacity
792
mA·h·gZn−1
ultra-long
life
span
650
h
at
5
mA
cm−2.
Developing
efficient
clean
technologies
is
still
challenging.
Here,
authors
report
method
increase
tune
atom
loaded
boosts
activity
electrolysis.
