Microscale structure optimization of catalyst layer for comprehensive performance enhancement in proton exchange membrane fuel cell
Energy,
Journal Year:
2024,
Volume and Issue:
301, P. 131738 - 131738
Published: May 24, 2024
Language: Английский
Mechanistic study of the competition between carbon dioxide reduction and hydrogen evolution reaction and selectivity tuning via loading single-atom catalysts on graphitic carbon nitride
Joel Jie Foo,
No information about this author
Sue‐Faye Ng,
No information about this author
Mo Xiong
No information about this author
et al.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(34), P. 16015 - 16025
Published: Jan. 1, 2024
We
computationally
screened
metal-single-atom
catalysts
(M-SAC)
on
carbon
nitride
for
selective
CO
2
reduction.
NiCN
significantly
lowered
the
rate-determining
potential
conversion
to
formic
acid
via
*OCHO
key
intermediate.
Language: Английский
Fueling the future of clean energy with self‐supported layered double hydroxides‐based electrocatalysts: A step toward sustainability
Man‐Kei Wong,
No information about this author
Jian Yiing Loh,
No information about this author
Feng Ming Yap
No information about this author
et al.
InfoMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 5, 2024
Abstract
Amid
the
ongoing
transition
toward
renewable
fuels,
self‐supported
layered
double
hydroxides
(LDHs)
are
envisioned
as
propitious
electrocatalysts
for
reinvigorating
electrocatalysis
realm,
thereby
facilitating
environmental
remediation
and
bolstering
sustainable
global
energy
security.
Exploiting
appealing
attributes
such
unique
lamellar
structure,
abundant
active
sites,
tunable
intercalation
spacing
compositional
flexibility,
LDHs
boast
remarkable
activity,
selectivity
stability
across
diverse
energy‐related
applications.
By
virtue
of
addressing
technological
time
prominence
excavating
their
renaissance,
this
review
first
encompasses
facile
state‐of‐the‐art
synthetic
approaches
alongside
intriguing
modification
strategies,
deciphering
authentic
structure–performance
correlations
advancing
more
robust
precise
catalyst
design.
Aside
from
this,
heterostructure
engineering
employing
diversified
ranges
coupling
materials
is
highlighted,
to
construct
ground‐breaking
binder‐free
LDHs‐based
heterostructures
endowing
with
unprecedented
activity
stability.
Subsequently,
milestone
gained
experimental
research
theoretical
modeling
frontier
in
multifarious
electrocatalytic
applications,
including
HER,
OER,
UOR,
AOR,
seawater
splitting
other
fundamental
conversion
reactions
rigorously
unveiled.
As
a
final
note,
brief
conclusion
presented
an
outline
future
prospects.
Essentially,
aspires
offer
enlightenment
incite
wise
inspiration
evolution
innovative
resilient
next‐generation
catalysts.
image
Language: Английский
Orientation-Dependent Oxygen Evolution Catalytic Performance and Mechanistic Insights of Epitaxial Co9S8 Thin Films
Inorganic Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 4, 2025
Cobalt
sulfide
(Co9S8)
nanomaterials
exhibit
an
efficient
electrochemical
catalytic
performance
due
to
their
unique
properties
and
electronic
structure.
The
preparation
of
epitaxial
Co9S8
thin
films
with
varying
crystal
orientations
the
study
kinetics
mechanisms
remain
significant
gaps.
This
addresses
(100),
(110),
(111)
on
yttrium-doped
zirconia
(YSZ)
substrates
using
pulsed
laser
deposition.
Characterization
confirmed
single-crystalline
nature
consistent
thickness.
Electrochemical
measurements
revealed
a
similar
hydrogen
evolution
reaction
(HER)
across
all
but
differences
in
oxygen
(OER)
performance.
orientation
showed
best
OER
activity,
current
density
24.2
mA
cm-2
at
1.8
V
vs
RHE,
outperforming
(100)
(110)
orientations,
which
achieved
14.5
6.7
cm-2,
respectively.
Density
functional
theory
(DFT)
calculations
indicated
that
favored
traditional
four-electron
transfer
mechanism,
lower
theoretical
overpotential
(0.37
V).
In
contrast,
demonstrated
more
complex
adsorption
behaviors,
resulting
higher
0.49
0.29
V,
These
results
highlight
reactivity
different
provide
valuable
insights
for
optimizing
catalyst
design
enhance
Language: Английский
Tailoring g-C3N4 properties through P and K co-doping: advancing photocatalytic CO2 reduction to CH4
Chemical Engineering Journal,
Journal Year:
2025,
Volume and Issue:
unknown, P. 163023 - 163023
Published: April 1, 2025
Language: Английский
Cyclo[16]carbon through the lens of density functional theory: Role of impurity decoration in hydrogen evolution reaction
Ashvin Kanzariya,
No information about this author
Shardul Vadalkar,
No information about this author
L. K. Saini
No information about this author
et al.
International Journal of Hydrogen Energy,
Journal Year:
2024,
Volume and Issue:
71, P. 400 - 410
Published: May 22, 2024
Language: Английский
Strategic facet engineering of bismuth‐based photocatalysts for the applications in solar‐to‐chemical conversion
Joel Jie Foo,
No information about this author
Zi‐Jing Chiah,
No information about this author
Sue‐Faye Ng
No information about this author
et al.
InfoScience.,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 5, 2024
Abstract
Semiconductor
photocatalysis
is
a
promising
tactic
to
simultaneously
overcome
global
warming
and
the
energy
crisis
as
it
can
directly
convert
inexhaustible
solar
into
clean
fuels
valuable
chemicals,
hence
being
employed
in
various
applications.
However,
current
performance
of
largely
impeded
by
fast
recombination
photogenerated
charge
carriers
insufficient
light
absorption.
Among
materials,
bismuth‐based
photocatalysts
have
stood
out
excellent
candidates
for
efficient
due
their
unique
controllable
crystal
structures
relatively
narrow
band
gap.
These
features
endow
selective
exposure
active
facets
(facet
engineering)
wide
absorption
range,
resulting
tunable
photocatalytic
activity,
selectivity,
stability.
Therefore,
great
potential
use
facet‐engineered
applications
(e.g.,
water
splitting,
CO
2
reduction,
N
fixation,
H
O
production)
achieve
sustainable
development.
Herein,
introduction
provides
overview
this
research,
while
synthesis,
modification
strategy,
latest
progress
application
were
summarized
highlighted
review
paper.
Lastly,
conclusion
outlooks
topic
concluded
give
some
insights
direction
focus
future
research.
Language: Английский
Review of 2-D support-based nanocomposites for electrocatalytic detection of pharmaceutical drugs
Chellapandi Bhuvaneswari,
No information about this author
Sundaram Ganesh Babu
No information about this author
Journal of Materials Science,
Journal Year:
2024,
Volume and Issue:
59(26), P. 11687 - 11717
Published: June 20, 2024
Language: Английский
Ampere‐Level Hydrogen Generation via 1000 H Stable Seawater Electrolysis Catalyzed by Pt‐Cluster‐Loaded NiFeCo Phosphide
Linlin Zhou,
No information about this author
Tong Wan,
No information about this author
Zhong Yang
No information about this author
et al.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 17, 2024
Abstract
Seawater
electrolysis
can
generate
carbon‐neutral
hydrogen
but
its
efficiency
is
hindered
by
the
low
mass
activity
and
poor
stability
of
commercial
catalysts
at
industrial
current
densities.
Herein,
Pt
nanoclusters
are
loaded
on
nickel‐iron‐cobalt
phosphide
nanosheets,
with
obtained
Pt@NiFeCo‐P
electrocatalyst
exhibiting
excellent
evolution
reaction
(HER)
in
alkaline
seawater
ampere‐level
The
catalyst
delivers
an
ultralow
HER
overpotential
19.7
mV
−10
mA
cm
−2
seawater‐simulating
solutions,
along
a
Pt‐mass
20.8
times
higher
than
Pt/C
under
same
conditions,
while
dropping
to
8.3
upon
five‐fold
NaCl
concentrated
natural
seawater.
Remarkably,
offers
stable
operation
for
over
1000
h
1
A
brine
electrolyte,
demonstrating
potential
efficient
long‐term
electrolysis.
X‐ray
photoelectron
spectroscopy
(XPS),
situ
electrochemical
impedance
(EIS),
Raman
studies
revealed
fast
electron
charge
transfer
from
NiFeCo‐P
substrate
enabled
strong
metal‐support
interaction,
which
increased
coverage
H
*
accelerated
water
dissociation
high
valent
Co
sites.
This
study
represents
significant
advancement
development
electrocatalysts
sustainable
generation
Language: Английский
Plastic‐to‐Treasure: Innovative advances in photo/electro‐catalytic upcycling technologies for commodity chemicals and fuels
Yu Xuan Leiu,
No information about this author
Kelvin O. Lim,
No information about this author
Zi‐Jing Chiah
No information about this author
et al.
EcoEnergy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 27, 2024
Abstract
Plastics
are
one
of
the
greatest
inventions
20
th
century
that
bring
convenience
to
mankind.
Owing
commercialization
plastics,
plastic
pollution
has
become
a
petrifying
environmental
issue
as
demand
for
products
overwhelms
recycling
rates.
However,
conventional
methods
(i.e.,
pyrolysis
and
gasification)
require
high
pressure
temperature
treat
waste
plastic,
resulting
in
ineluctably
energy‐waste
secondary
pollution.
On
contrary,
selective
catalylic
technologies
provide
green
approach
degrade
plastics
whilst
also
reforming
them
into
value‐added
chemicals
fuels.
In
this
review,
innovative
approaches,
including
photocatalysis,
electrocatalysis,
photoelectrocatalysis,
have
been
comprehensively
reviewed
from
perspective
sustainable
use
resources.
Distinctive
emphasis
is
placed
on
highlighting
merits
each
technology
enlightening
state‐of‐the‐art
modification
strategies
strengthen
pillars
catalytic
activities.
The
transformation
with
above
techniques
elaborated
terms
reaction
conditions
various
substrates.
With
feasibility
breakdown
displayed
study,
insights
challenges
prospects
upcycling
underscored
well
facilitate
society
moving
toward
circular
economy.
Language: Английский