Graphene-Supported Small-Sized FeSe2 Nanoparticles As Efficient Counter Electrode Catalysts for Dye-Sensitized Solar Cells
Xin Wen,
Jiuyi Fan,
Chunmei Lv
и другие.
Energy & Fuels,
Год журнала:
2024,
Номер
38(6), С. 5475 - 5484
Опубликована: Март 7, 2024
Designing
cost-effective
counter
electrode
(CE)
catalysts
for
the
triiodide
reduction
reaction
(IRR)
in
dye-sensitized
solar
cells
(DSSCs)
is
of
significant
importance
development
photovoltaic
technology,
yet
it
remains
a
challenge.
Herein,
FeSe2/G
composites
with
well-defined
intimate
interface
were
controllably
synthesized
by
immobilizing
small-sized
FeSe2
nanoparticles
on
graphene.
As
expected,
as-prepared
exhibited
remarkable
performance
8.69%,
superior
to
that
(6.75%),
graphene
(7.11%),
and
traditional
Pt-based
devices
(7.70%)
as
well
higher
than
most
previously
reported
works.
The
theory
calculation
work
function
results
demonstrated
accelerated
kinetics
process
due
optimized
electronic
structure
around
catalytic
active
centers
further
enhanced
interaction
between
Fe
3d
orbitals
I
5p
orbitals.
They
also
intrinsic
activity
conductive
platform
properties
endow
an
impressive
performance.
simple
synthesis
admirable
aid
not
only
achieving
substitution
Pt
but
establishing
structure–performance
relationship
guide
CE
catalysts.
Язык: Английский
N, S double-doped GQDs intercalated nanoflower-like MoS2 as an efficient counter electrode catalyst for DSSCs
Carbon,
Год журнала:
2024,
Номер
unknown, С. 119977 - 119977
Опубликована: Дек. 1, 2024
Язык: Английский
2D-Ti3C2 MXenes decorated with WO3 as counter electrode catalysts for iodide redox shuttle in dye-sensitized solar cells
Renewable Energy,
Год журнала:
2025,
Номер
unknown, С. 122858 - 122858
Опубликована: Март 1, 2025
Язык: Английский
Regulating the electronic structure of cobalt selenide by doping engineering for efficient oxygen evolution reaction
Colloids and Surfaces A Physicochemical and Engineering Aspects,
Год журнала:
2024,
Номер
704, С. 135446 - 135446
Опубликована: Сен. 26, 2024
Язык: Английский
Design highly effective B or N doped mesoporous carbon fibers catalysts for I3-/I- redox couple regeneration in carbon-based dye-sensitized solar cells
Arabian Journal of Chemistry,
Год журнала:
2024,
Номер
17(7), С. 105817 - 105817
Опубликована: Апрель 30, 2024
Construction
of
mesoporous
structure
and
improving
the
conductivity
carbon
counter
electrode
are
feasible
paths
to
enhance
catalytic
activity
in
dye-sensitized
solar
cells
(DSCs)
toward
I3-/I-
redox
couple
regenerating
(IRR).
Herein,
fiber
(PCf)
has
been
first
synthesized
DSCs
using
PCf
results
a
power
conversion
efficiency
(PCE)
7.12%,
significantly
surpassing
PCE
6.01%
generated
by
with
(Cf)
without
structure.
Additionally,
doping
heteroatoms
B
or
N
can
further
performance
PCf.
Consequently,
doped
Cf
(BPCf
NPCf)
electrode-based
achieve
high
values
8.43%
7.96%,
respectively,
demonstrating
improvements
40.3%
32.4%.
This
enhancement
for
IRR
be
attributed
increased
specific
surface
area
which
provide
more
activated
sites.
Meanwhile,
enhanced
is
also
an
important
factor
improved
activity.
work
expected
potential
path
IRR.
Язык: Английский
Preparation of high-performance asymmetric supercapacitor self-supported electrodes with (NiCoCuCrMn)Se cathode and FeSe2 anode by microwave method
Journal of Alloys and Compounds,
Год журнала:
2024,
Номер
1010, С. 178073 - 178073
Опубликована: Дек. 12, 2024
Язык: Английский
Monodisperse MnS Nanocrystals Anchored on Reduced Graphene Oxide as Catalysts for Triiodide Reduction
ACS Applied Nano Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 17, 2024
Transition
metal
sulfides
are
widely
used
in
energy
conversion
technologies
due
to
their
abundance,
low
cost,
excellent
functional
properties,
and
catalytic
activity.
However,
challenging
synthesis
moderate
conductivity
limit
practical
applications.
In
this
study,
we
employed
a
colloidal
method
using
manganese
oleate
as
precursor
successfully
grow
monodisperse,
small-sized,
uniformly
distributed,
highly
crystalline
MnS
nanocrystals
(NCs)
situ
on
the
surface
of
reduced
graphene
oxide
(rGO).
The
use
significantly
enhanced
reactivity
source,
promoting
high
dispersion
uniform
distribution
NCs
rGO
surface.
This
unique
strategy
greatly
optimized
reaction
kinetics,
ensuring
monodispersity
effectively
preventing
nanocrystal
aggregation,
resulting
monodisperse
nanostructure.
MnS/rGO
composite
material
efficiently
combines
high-density
catalytically
active
sites
with
rGO,
thereby
exhibiting
outstanding
electrocatalytic
When
tested
counter
electrode
(CE)
dye-sensitized
solar
cells
(DSSCs),
outperformed
conventional
Pt-based
electrodes.
power
efficiency
MnS/rGO-based
CE
reached
8.32%,
surpassing
7.87%
achieved
by
DSSCs.
Density
theory
(DFT)
calculations
indicated
that
superior
performance
is
attributed
its
I3–
adsorption
capacity
strong
interfacial
charge
transfer
capability.
These
results
demonstrate
promising
candidate
replace
Pt
Язык: Английский