Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 14, 2025
Abstract
Flexible
solid‐state
supercapacitors
(SCs)
are
crucial
for
wearable
electronics,
offering
high
safety
and
outstanding
cycling
stability.
However,
conventional
hydrogel
electrolytes
suffer
from
poor
mechanical
strength,
weak
electrode
adhesion,
low
voltage
windows,
instability
under
extreme
conditions,
limiting
their
applications.
Herein,
this
study
presents
sustainable
eco‐friendly
cellulose
nanofibers
(CNF)‐reinforced
polyacrylic
acid/deep
eutectic
solvents/CNF
(PAA/DES/CNF)
ion‐gel
with
all‐round
properties.
The
PAA/DES/CNF
electrolyte
exhibits
exceptional
ionic
conductivity
(45.5
mS
cm
−1
),
a
broad
electrochemical
stability
window
(0–1.6
V)
over
wide
temperature
range
(−20–60
°C).
These
enhanced
properties
attributed
to
the
dynamic
ion
transport
pathways
facilitated
by
interactions
between
CNF,
PAA,
DES.
abundant
interaction
sites
on
CNF
impart
superior
robust
excellent
self‐healing
capabilities.
Based
these
characteristics,
assembled
supercapacitor
specific
capacitance
94.4
F
g
at
current
density
of
1
A
,
maintains
93%
capacity
deformation
temperatures,
alongside
retention
(up
90.1%)
5000
cycles.
This
work
provides
valuable
insights
into
design
development
sustainable,
environmentally
adaptable,
highly
flexible
energy
storage
devices.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(10), P. 7907 - 7916
Published: May 6, 2024
Electrochemical
nitrate
reduction
(NO3RR)
offers
an
ecofriendly
way
for
ammonia
production.
However,
improving
the
sluggish
kinetics
of
such
a
multistep
reaction
still
remains
challenging.
Herein,
asymmetry
strategy
is
proposed
to
adjust
charge
distribution
active
centers
on
metallene
by
presenting
novel
symmetry-broken
medium-entropy-alloy
(MEA)
via
heteroatom
alloying.
Benefiting
from
maximized
exposure
well-regulated
sites,
proof-of-concept
PdCuCo
MEA
delivers
near
100%
NH3
Faradaic
efficiency
in
both
neutral
and
alkaline
electrolytes,
along
with
record-high
yield
rate
over
532.5
mg
h–1
mgcat–1.
Moreover,
it
enables
99.7%
conversion
industrial
wastewater
level
6200
ppm
drinkable
water
level.
Detailed
studies
further
revealed
that
redistribution
induced
elemental
electronegativity
difference
metallene,
which
will
weaken
N–O
bond
*NO,
thus
reducing
energy
barrier
rate-determining
step.
Meanwhile,
competitive
HER
formation
NO2–
are
also
hindered.
We
believe
our
this
work
shed
light
design
efficient
NO3RR
catalysts
more
practical
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 10, 2024
Abstract
The
preparation
of
high‐performance
and
fire‐safe
electrolytes
for
flexible
quasi‐solid‐state
supercapacitors
is
challenging.
In
this
work,
a
novel
multifunctional
deep
eutectic
solvent
gel
(DESG)
fabricated
using
acrylic
acid
urea
as
hydrogen
bond
donors
choline
chloride
acceptor.
DESG
shows
high
ionic
conductivity
(0.552
S
m
−1
),
good
electrochemical
performance
(specific
capacitance:
106.8
F
g
wide
operating
temperature
range
(−20–90
°C),
being
promising
candidate
solid‐state
supercapacitors.
Furthermore,
it
exhibits
thermoelectric
conversion
capability
(Seebeck
coefficient:
1.56
mV
K
ideal
capacitors
fire‐warning
sensors.
prepared
rapidly
self‐extinguishes
after
removal
from
fire,
reaching
limiting
oxygen
index
value
38.0%
demonstrating
its
excellent
flame
retardancy.
addition,
has
self‐healing
(healing
efficiency
84.3%).
work
provides
new
insights
into
the
application
fire‐safety
eutectogels
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(9)
Published: Nov. 21, 2023
Abstract
Photocatalytic
reduction
of
CO
2
with
H
O
provides
a
promising
and
sustainable
pathway
to
produce
valuable
chemicals
fuels.
However,
the
low
efficiency
concomitant
competition
evolution
pose
serious
challenges
practical
applications.
Herein,
novel
approach
is
proposed
modulate
surface
microenvironment
photocatalysts
by
utilizing
hydrogen
peroxide
(H
).
A
bronze‐phase
TiO
(TB)
composed
ultrathin
nanosheet
thickness
∼3
nm
fabricated
employed
as
model
catalyst
for
photocatalytic
reduction.
molecules
are
presumed
be
bonded
TB
form
TB‐H
(TBHO)
active
specie.
The
newly
generated
TBHO
enhances
adsorption
accelerates
mass
transfer,
weakly
acidic
serves
purpose
mediating
proton‐coupled
electron
transfer
path.
Consequently,
nanosheets
assisted
show
an
excellent
generation
rate
29.1
µmol
−1
g
h
(which
11.2‐fold
higher
than
that
pure
TB)
in
water,
selectivity
toward
nearly
100%.
This
work
underscores
importance
tailoring
promote
while
minimizing
water.
Carbon Energy,
Journal Year:
2023,
Volume and Issue:
6(3)
Published: Sept. 6, 2023
Abstract
The
electrochemical
reduction
of
carbon
dioxide
offers
a
sound
and
economically
viable
technology
for
the
electrification
decarbonization
chemical
fuel
industries.
In
this
technology,
an
electrocatalytic
material
renewable
energy‐generated
electricity
drive
conversion
into
high‐value
chemicals
carbon‐neutral
fuels.
Over
past
few
years,
single‐atom
catalysts
have
been
intensively
studied
as
they
could
provide
near‐unity
atom
utilization
unique
catalytic
performance.
Single‐atom
become
one
state‐of‐the‐art
catalyst
materials
monoxide.
However,
it
remains
challenge
to
facilitate
efficient
products
beyond
review,
we
summarize
present
important
findings
critical
insights
from
studies
on
reaction
hydrocarbons
oxygenates
using
catalysts.
It
is
hoped
that
review
gives
thorough
recapitulation
analysis
science
behind
catalysis
more
reduced
through
so
can
be
guide
future
research
development
with
industry‐ready
performance
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(25)
Published: Feb. 4, 2024
Abstract
The
covalent
organic
frameworks/polymers
configurated
with
metal‐N
4
conjugated
structures
offer
an
exceptional
platform
for
efficient
electrochemical
CO
2
reduction
reaction
(eCO
RR).
However,
understanding
the
impact
of
structure‐mediated
local
microenvironment
and
integrating
electroreduction
follow‐up
utilization
toward
extending
chemical
valorization
are
still
far
from
sufficient.
Herein,
a
set
phenanthroline‐porphyrin
polymers
designed
to
decode
modulation
originating
built‐in
structures,
optimized
one
delivered
extraordinary
performance
eCO
RR
≈100%
Faradaic
efficiency
under
stabilized
‐electrolysis
70
h.
experimental
theoretical
analyses
suggest
that
regulation
Co‐N
electronic
convoys
formation
key
intermediate
*
COOH.
Furthermore,
through
CO‐mediated
electro/thermocatalytic
tandem
processes,
aminocarbonylation
aryl
iodides
amines
high
yields
has
been
convincingly
implemented
over
coordinated
Pd
sites,
which
is
remarkably
helpful
propel
.
ACS Materials Letters,
Journal Year:
2023,
Volume and Issue:
5(12), P. 3347 - 3363
Published: Nov. 21, 2023
The
global
nitrogen
cycle
has
been
destroyed
by
the
quickly
growing
anthropogenic
emissions
of
nitrite-containing
pollutants
during
past
decades,
which
causes
numerous
unexpected
environmental
side
effects
and
threatens
human
health.
Compared
with
conventional
nitrite
removal
methods
featuring
low
efficiency,
high
cost,
secondary
pollution,
electrocatalytic
reduction
reaction
garnered
significant
attention
offers
an
appealing
solution
for
recovering
balance.
Moreover,
it
takes
a
step
further
to
convert
into
recyclable
nitrogen-containing
fertilizer
including
ammonia
urea.
However,
materials
design
mechanistic
aspects
such
emerging
complex
reactions
are
yet
be
explored
compared
other
well-studied
primary
as
oxygen
water
splitting.
To
address
this
challenge,
review
provides
comprehensive
account
sustainable
electrosynthesis
urea
from
ambient
C–N
coupling.
two
key
reactions,
namely
production
synthesis
coreduction
carbon
dioxide,
elaborated
in
detail,
available
catalysts
focus
discussion.
current
technical
barriers
potential
research
prospects
domain,
exploring
excellent
electrocatalysts
activity
selectivity,
precisely
controlling
interfacial
microenvironment,
understanding
in-depth
mechanism,
highlighted.
