The
search
for
green
energy
is
still
pursued
by
many
researchers,
with
promising
examples
including
dye-sensitized
solar
cells
(DSSCs)
and
hydrogen
derived
from
evolution
reactions
(HERs).
Among
the
various
non-precious
metal
catalysts
that
drive
DSSCs
HERs,
transition
selenides
(TMSs)
have
received
extensive
attention
due
to
their
unique
electronic
properties
tunable
morphology.
Herein,
using
CuCo-LDH
(copper-cobalt
hydroxide)
as
a
template,
doped
element
vanadium
selenized
through
hydrothermal
reaction,
hollow
structure
CuSe-Co3Se4@VSe2
was
synthesized
successfully
used
bifunctional
catalyst
alkaline
HER
DSSCs.
It
characterized
presents
dandelion-like
clusters
composed
of
nanotubes
VSe2
nanoparticles
adsorbed
on
surface.
Due
synergistic
effect
elements,
showed
excellent
(76
mV@10
mA
cm–2)
performances
(power
conversion
efficiency,
PCE
=
9.64%).
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 28, 2024
Abstract
Metal–organic
frameworks
(MOFs)
are
excellent
precursors
for
preparing
transition
metal
and
nitrogen
co‐doped
carbon
catalysts,
which
have
been
widely
utilized
in
the
field
of
electrocatalysis
since
their
initial
development.
However,
original
MOFs
derived
catalysts
greatly
limited
development
application
due
to
disadvantages
such
as
atom
aggregation,
structural
collapse,
narrow
pore
channels.
Recently,
surfactants‐assisted
attracted
much
attention
from
researchers
advantages
hierarchical
porous
structure,
increased
specific
surface
area,
many
exposed
active
sites.
This
review
mainly
focuses
on
synthesis
methods
comprehensively
introduces
action
surfactants
materials
structure‐activity
relationship
between
oxygen
reduction
reaction,
evolution
hydrogen
reaction
performance.
Apparently,
aims
this
not
only
introduce
status
but
also
contribute
rational
design
fuel
cells,
metal–air
electrolysis
water
toward
production.
Journal of Alloys and Compounds,
Journal Year:
2024,
Volume and Issue:
995, P. 174799 - 174799
Published: May 11, 2024
In
this
study,
a
two-step
surfactant
sol-gel
strategy
is
developed
to
synthesize
Co
particles
with
confined
sizes
in
the
nanoscale
using
organic
precursors.
This
approach
does
not
require
use
of
vacuum
techniques
or
strong
reducing
atmospheres,
making
it
simple
economically
attractive.
The
involves
generation
few-layered
graphene
shells
provide
chemical
stability,
prevent
oxidation
and
aggregation
tendencies.
Additionally,
study
investigates
precursors
based
on
nitrates
acetates,
exploring
their
structural
magnetic
properties
densified
samples.
Remarkably,
are
competitive
for
both
approaches,
coercivities
reaching
up
300
Oe
saturation
magnetization
∼60
∼80
emu/g
samples
acetates
prepared
at
650
°C,
respectively.
However,
observed
that
smaller
more
uniformly
sized
nanoparticles
(around
∼10
nm)
obtained
nitrate-based
due
an
effective
ligand
decomposition
process.
Therefore,
offers
confinement
intriguing
through
cost-effective
reproducible
synthesis.
