International Journal of Energy Research,
Journal Year:
2024,
Volume and Issue:
2024(1)
Published: Jan. 1, 2024
Although
protein
hydrogels
are
excellent
carbonization
precursors
for
synthesizing
carbon
nanoarchitectures
as
efficient
metal‐free
oxygen
reduction
reaction
(ORR)
catalysts,
research
on
this
topic
has
rarely
been
conducted.
In
study,
fibrin
templated
with
sodium
chloride
(NaCl)
crystals
proposed
novel
the
manufacture
of
heteroatom‐doped
planar
nanostructures
containing
internal
pores.
By
systematically
adjusting
conditions,
it
is
revealed
that
their
effects
material
properties
and
ORR
characteristics.
The
catalyst
carbonized
at
900°C
12
hr
demonstrated
performances
in
an
alkaline
solution,
including
onset
potential
(E
;
0.86
V
vs.
reversible
hydrogen
electrode),
diffusion‐limited
current
(–4.0
mA
cm
−2
0.05
V),
electron
transfer
number
(2.84),
durability
(–18
mV
shift
Eon
after
30,000
cycles).
This
attributed
to
synergistic
action
fast
out‐of‐plane
transport,
sufficient
adsorption
sites,
enhanced
activity
by
heteroatom
doping,
effective
mass
through
interconnected
Electron,
Journal Year:
2024,
Volume and Issue:
2(1)
Published: Feb. 1, 2024
Abstract
Metal–air
batteries,
fuel
cells,
and
electrochemical
H
2
O
production
currently
attract
substantial
consideration
in
the
energy
sector
owing
to
their
efficiency
eco‐consciousness.
However,
broader
use
is
hindered
by
complex
oxygen
reduction
reaction
(ORR)
that
occurs
at
cathodes
involves
intricate
electron
transfers.
Despite
significant
ORR
performance
of
platinum‐based
catalysts,
high
cost,
operational
limitations,
susceptibility
methanol
poisoning
hinder
implementation.
This
emphasizes
need
for
efficient
non‐precious
metal‐based
electrocatalysts.
A
promising
approach
utilizing
single‐atom
catalysts
(SACs)
featuring
metal–nitrogen–carbon
(M‐N‐C)
coordination
sites.
SACs
offer
advantages
such
as
optimal
utilization
metal
atoms,
uniform
active
centers,
precisely
defined
catalytic
sites,
robust
metal–support
interactions.
symmetrical
distribution
around
central
atom
a
site
(M‐N
4
)
often
results
suboptimal
performance.
challenge
can
be
addressed
carefully
tailoring
surrounding
environment
center.
review
specifically
focuses
on
recent
advancements
Fe‐N
within
Fe‐N‐C
SACs.
It
highlights
strategy
coupling
sites
with
clusters
and/or
nanoparticles,
which
enhances
intrinsic
activity.
By
capitalizing
interplay
between
associated
species,
overall
improved.
The
combines
findings
from
experimental
studies
density
functional
theory
simulations,
covering
synthesis
strategies
coupled
synergistic
characterization
techniques,
influence
particles
offering
comprehensive
outlook,
aims
encourage
research
into
high‐efficiency
Fe
real‐world
applications
coming
years.
Advanced Science,
Journal Year:
2024,
Volume and Issue:
11(22)
Published: April 5, 2024
Abstract
The
shortage
and
unevenness
of
fossil
energy
sources
are
affecting
the
development
progress
human
civilization.
technology
efficiently
converting
material
resources
into
for
utilization
storage
is
attracting
attention
researchers.
Environmentally
friendly
biomass
materials
a
treasure
to
drive
new‐generation
sources.
Electrochemical
theory
used
convert
chemical
substances
electrical
energy.
In
recent
years,
significant
has
been
made
in
green
economical
electrocatalysts
oxygen
reduction
reaction
(ORR).
Although
many
reviews
have
reported
around
application
biomass‐derived
catalytically
active
carbon
(CAC)
catalysts
ORR,
these
only
selected
single/partial
topic
(including
synthesis
preparation
from
different
sources,
structural
optimization,
or
performance
enhancement
methods
based
on
CAC
catalysts,
CACs)
discussion.
There
no
review
that
systematically
addresses
latest
synthesis,
enhancement,
applications
related
CAC‐based
synchronously.
This
fills
gap
by
providing
timely
comprehensive
summary
following
sections:
exposition
basic
catalytic
principles
composition
properties
various
types
biomass,
analysis
traditional
popular
optimization
strategies,
practical
oxidative
electrocatalysts.
provides
advances
provide
research
directions
design
ideas
catalyst
synthesis/optimization
contributes
industrialization
electrocatalysis
electric
storage.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(27), P. 16863 - 16876
Published: Jan. 1, 2024
The
symmetric
electronic
structure
of
an
Fe
single-atom
site
catalyst
was
effectively
regulated
by
incorporating
Co–N
x
sites
and
core–shell
Co
3
7
@C
nanoparticles,
resulting
in
high
performance
towards
the
ORR
Zn–air
batteries.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
12(4), P. 2004 - 2010
Published: Nov. 29, 2023
Efficient
pH-universal
electrocatalysts
composed
of
highly
dispersive
tiny
Fe
nanoparticle
units
in
a
carbon
nanofiber
network
is
reported.
The
as-assembled
zinc–air
batteries
alkaline
and
neutral
electrolytes
exhibit
excellent
overall
performance.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(44), P. 30798 - 30809
Published: Jan. 1, 2024
Fe-single-atom-coupled
Fe
3
C
multifunctional
catalysts
on
P-,
F-,
N-doped
CNT
deliver
comparable
OER
behavior
to
RuO
2
,
better
ORR
performance
than
Pt/C,
and
ZAB
Pt/C–RuO
due
the
nanoarchitecture
abundant
active
sites.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(23), P. 11005 - 11018
Published: Jan. 1, 2024
Lithium-sulfur
batteries
(Li-S
batteries)
are
being
widely
studied
as
promising
energy-storage
solutions
for
the
next
generation
owing
to
their
excellent
properties
including
high
energy
density,
eco-friendliness,
and
low
cost.
Nevertheless,
drawbacks,
especially
severe
"shuttle
effect"
slow
transformation
of
polysulfides,
hinder
road
commercialization
Li-S
batteries.
The
functional
utilization
metal
compounds
in
has
been
verified,
such
enhancing
conductivity,
adsorption
lithium
polysulfides
(LPSs)
improving
kinetics
electrode
processes.
Benefiting
from
outstanding
catalytic
capability
relatively
good
phosphides
have
gradually
received
intense
attention
over
past
few
years.
Consequently,
significant
progress
achieved
optimization
recent
This
review
introduces
application
aspects
own
characteristics,
material
structure
design,
interface
control.
aim
this
is
enhance
understanding
operational
mechanism
provide
guidance
development
