Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
focuses
on
the
synthesis
and
characterization
of
defective
electrocatalysts,
internal
correlation
between
defects
catalytic
activity,
development
application
electrocatalysts
in
various
fields.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 9, 2024
Abstract
In
non‐metallic
atom‐doped
carbonaceous
materials,
the
disparity
in
electronegativity
between
doped
constituents
and
carbon
atoms
predetermines
bonding
topology
of
covalent
bonds
distribution
electron
density.
This,
consequently,
influences
polarization
transport
behavior
within
domain
electromagnetic
wave
attenuation
attributes
material.
However,
influence
formed
by
doping
with
weakly
electronegative
on
density
distribution,
effects,
remains
uncharted.
To
address
this
deficiency,
study
fabricates
a
porous
material
(NCP)
incorporates
boron‐doped
to
form
tunable
B─C
configurations
(B‐NCP).
By
modulating
configuration
proportion,
it
is
feasible
achieve
synergistic
optimization
conductive
loss
B‐NCP
specimen.
The
optimized
prototype
‐1200
sample
displays
exceptionally
efficient
absorption
capabilities
minimum
reflection
(RL
min
)
−52.03
dB
an
effective
bandwidth
(EAB)
5.36
GHz.
This
presents
conscientious
model
for
comprehending
mechanisms
associated
atom
carbon‐based
wave‐absorbing
materials.
Small Structures,
Journal Year:
2023,
Volume and Issue:
5(3)
Published: Oct. 12, 2023
The
development
of
dimensionally
stable
anodes
(DSAs)
has
made
the
chlorine
evolution
reaction
(CER)
most
important
industrial
anode
since
1960s.
However,
preparation
DSA
depends
on
extensive
use
precious
metals,
Ru
and
Ir,
which
are
expensive
scarce.
Herein,
a
cationic
defect
adsorption–oxidation
anchoring
strategy
to
immobilize
oxidized
sub‐nano
ruthenium
clusters
2D
low‐crystallinity
titanium
oxide
(2D
TiO
x
)
substrate
is
reported.
Through
metal
oxide−support
interaction,
alters
electronic
structure
(RuO
),
improving
its
activity,
selectivity,
stability
for
CER.
Specifically,
mass
activity
RuO
/2D
electrode
26.5
143.5
times
higher
than
that
state‐of‐the‐art
commercial
2
DSA,
respectively,
at
an
overpotential
100
mV.
Moreover,
selectivity
CER
approximately
96.5%,
it
exhibits
remarkable
durability
lasting
over
210
h.
Therefore,
holds
significant
potential
dispersion,
active
site
density,
atomic
utilization
noble
clusters.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(32)
Published: May 24, 2024
Abstract
Consuming
a
substantial
quantum
of
energy
(~165
TW
h),
the
chlor‐alkali
industry
garners
considerable
scholarly
and
industrial
interest,
with
anode
reaction
involving
oxidation
chloride
ions
being
paramount
determinant
rates.
While
dimensionally
stable
(DSA)
displays
commendable
catalytic
activity
longevity,
they
rely
on
precious
metals
exhibit
non‐negligible
side
in
sodium
hypochlorite
(NaClO)
production,
underscoring
appeal
metal‐free
alternatives.
However,
molecules
systems
currently
available
are
characterized
by
intricate
complexity
not
amenable
to
large‐scale
production.
Herein,
we
have
successfully
developed
an
economical
highly
efficient
molecular
catalyst,
demonstrating
superior
performance
compared
former
organic
ion
process
(COP)
for
production
both
chlorine
gas
(Cl
2
)
NaClO.
The
molecule
2N
only
needs
92
mV
reach
current
density
1000
mA
cm
−2
,
small
cost
0.002
$
g
−1
.
Furthermore,
propose
novel
mechanism
underpinned
non‐covalent
interactions,
serving
as
foundation
innovative
approach
design
anodes
COP.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(18)
Published: Feb. 25, 2024
Abstract
Rechargeable
lithium‐oxygen
(Li‐O
2
)
batteries
with
high
theoretical
energy
density
are
regarded
as
a
promising
candidate
for
the
booming
electric
vehicle
manufacturing
industry,
whereas
their
commercial
application
is
hindered
due
to
poor
cyclic
stability
caused
by
sluggish
kinetics
and
inevitable
cathode
passivation.
Herein,
synergistic
working
mechanism
of
Li‐O
battery
initiated
implementing
well‐designed
hollow
carbon
shells
hierarchically
porous
structure
(HCS)
assisted
dual
redox
mediators
(RMs)
simultaneously,
so
systemically
address
issues
diminished
discharge
capacity
reaction
kinetics.
The
HCS
constructs
more
space
accommodate
Li
O
,
increases
accessibility
active
sites,
enhances
capacity.
More
importantly,
RMs
regulate
growth
in
surface‐mediated
mode,
resulting
an
easily
decomposed
film‐like
higher
electron
transport
improving
As
result
effort,
HCS‐based
manifests
total
24580
mA
h
g
−1
prolonged
cycle
life
2500
at
current
100
.
This
design
philosophy
will
open
up
new
way
optimize
upgrade
materials
batteries.
