Crystal Growth & Design,
Год журнала:
2024,
Номер
25(1), С. 158 - 170
Опубликована: Дек. 11, 2024
Copper-based
binary
and
ternary
sulfides
have
attracted
significant
attention
due
to
their
excellent
photophysical
properties,
making
them
highly
promising
for
high-performance
photovoltaic
devices.
This
study
focuses
on
the
synthesis
structural
characterization
of
an
air-stable
binuclear
Cu-pyrazinethiolate-phosphine
complex,
which
serves
as
efficient
single-source
molecular
precursor
preparation
CuS
nanoplatelets.
Furthermore,
utility
this
complex
a
versatile
copper-based
sulfides,
such
CuInS2,
Cu2SnS3,
CuSbS2,
has
been
demonstrated.
A
plausible
mechanism
facile
formation
these
materials
is
proposed
based
presence
disulfide
(S–S)
linkages
in
CuS.
The
crystal
structure,
phase
purity,
compositions
nanoparticles
were
confirmed
using
powder
X-ray
diffraction
(PXRD),
photoelectron
spectroscopy
(XPS),
energy-dispersive
(EDS),
area
elemental
mapping.
Electron
microscopic
studies
revealed
two-dimensional
(2D)
nanoplatelet
morphology
with
varied
shapes
sizes.
Ultraviolet–visible
(UV–vis)
diffuse
reflectance
showed
slight
blue
shift
band
gap
compared
bulk
counterparts,
can
be
attributed
quantum
confinement
or
surface
lattice
distortion
effects.
pristine
found
blue-shifted
material.
Prototype
photoelectrochemical
cells,
fabricated
nanoparticles,
exhibit
nice
photocurrent
generation
along
optimum
photoswitching,
poses
suitable
clean-energy
applications.
The Innovation Materials,
Год журнала:
2024,
Номер
2(1), С. 100060 - 100060
Опубликована: Янв. 1, 2024
<p>Inorganic,
organic,
and
hybrid
two-dimensional
(2D)
materials
are
being
developed
for
ever-expanding
numbers
of
applications,
though
energy
catalysis
remain
the
main
drivers
their
development.
We
present
overviews
bottom-up
top-down
synthetic
strategies
such
examine
manufacturing
scalability
issues.
Mechanical,
electrical,
thermal
properties
modulation
highlighted
because
they
fundamental
to
above-mentioned
drivers.
The
burgeoning
importance
heterostructures
in
materials,
particularly
electrode
design
function
is
stressed.
Detailed
attention
given
applications
2D
electrocatalysis
reactions:
oxygen
reduction,
evolution,
hydrogen
carbon
dioxide
nitrogen
reduction.
Water
splitting,
reduction
by
photocatalysis
also
examined.
A
perspective
expected
advances
expansion
types
with
a
focus
on
heterostructure
development,
presented
conclusion.</p>
Journal of Materials Chemistry A,
Год журнала:
2023,
Номер
11(17), С. 9300 - 9332
Опубликована: Янв. 1, 2023
This
review
provides
a
comprehensive
overview
of
various
advanced
modification
strategies
metal-sulfide
based
nanomaterials
for
electrochemical
CO
2
reduction
to
valuable
products.
Abstract
Electrochemical
CO
2
reduction
(ECR)
to
value-added
products
is
regarded
as
a
sustainable
strategy
mitigate
global
warming
and
energy
crisis,
designing
highly
efficient
robust
catalysts
essential.
In
this
work,
transition
metal
sulfides
(TMS)-decorated
CuS
microflower-like
structures
were
prepared
via
the
one-pot
hydrothermal
synthesis
method
for
ECR
CO,
influence
of
TMS
doping
on
performance
was
demonstrated.
Characterization
performed
using
XRD,
FESEM-EDS,
N
physisorption,
XPS,
revealing
successful
loading
TMS,
formation
architectures
generation
sulfur
vacancies.
tests
demonstrated
that
ZnS,
Bi
S
3
,
CdS
MoS
improved
intrinsic
activity
catalyst.
Particularly,
-CuS
composite
catalyst
with
imperfect
petal-like
structure
showed
uniform
distribution
edge
Mo
sites,
which
worked
synergistically
formed
grain
boundaries
(GBs)
undercoordinated
vacancy
sites
in
promoting
activation,
stabilizing
*
COOH
adsorption,
facilitating
desorption,
lowering
barrier
potential-limiting
step
selectivity.
The
achieved
maximum
selectivity
83.2%
at
–0.6
V
versus
reversible
hydrogen
electrode
(RHE)
high
cathodic
energetic
efficiency
100%.
At
potential,
maintained
stable
catalytic
during
333-min
electrolysis
process.
findings
will
offer
promising
avenue
development
production
from
ECR.
Emergent Materials,
Год журнала:
2023,
Номер
7(1), С. 1 - 16
Опубликована: Дек. 20, 2023
Abstract
The
need
to
limit
anthropogenic
CO
2
emissions
and
lower
the
atmospheric
concentration
makes
conversion
an
imminent
requirement.
Availability
of
suitable
facilities
prior
understanding
how
electro
thermal
catalysis
work
renders
them
as
appealing
platforms
for
.
Catalysts
play
a
crucial
part
in
chemicals
both
processes.
Catalysis
is
process
initiated
by
interaction
reactants,
intermediates,
products
produced
on
catalyst’s
surface.
Generally,
higher
temperatures
thermo-catalytic
or
electrical
potentials
electrocatalytic
are
used
increase
reaction
rate
get
desired
results
overcome
kinetic
barrier.
Several
studies
have
been
reported
processes
with
desire
decrease
stopping
at
site
generation
itself.
viability
catalytic
performance
situations
large-scale
still
up
debate.
In
this
review,
we
intend
focus
recent
developments
aided
diverse
catalysts
analyzing
comparing
proof-of-principle
investigations
applied
conditions,
catalyst
activity
stability
thermocatalytic
conversions.
most
common
synthesis
techniques
employed
experiments
were
analyzed.
Primary
goal
review
draw
connections
between
two
fields
order
generate
fresh
insights
that
will
lead
more
efficient
integrated
process.
Molecules,
Год журнала:
2024,
Номер
29(13), С. 2948 - 2948
Опубликована: Июнь 21, 2024
The
electrocatalytic
carbon
dioxide
(CO2)
reduction
reaction
(CO2RR)
is
extensively
regarded
as
a
promising
strategy
to
reach
neutralization.
Copper
sulfide
(CuS)
has
been
widely
studied
for
its
ability
produce
C1
products
with
high
selectivity.
However,
challenges
still
remain
owing
the
poor
selectivity
of
formate.
Here,
Bi/CeO2/CuS
composite
was
synthesized
using
simple
solvothermal
method.
Bi/CeO2–decorated
CuS
possessed
formate
selectivity,
Faraday
efficiency
and
current
density
reaching
88%
17
mA
cm−2,
respectively,
in
an
H-cell.
structure
significantly
reduces
energy
barrier
formed
by
OCHO*,
resulting
activity
CO2
conversion
Ce4+
readily
undergoes
Ce3+,
allowing
formation
conductive
network
Ce4+/Ce3+.
This
facilitates
electron
transfer,
stabilizes
Cu+
species,
enhances
adsorption
activation
CO2.
Furthermore,
sulfur
catalyzes
OCHO*
transformation
work
describes
highly
efficient
catalyst
formate,
which
will
aid
design
CO2RR
target
products.
