Energy & environment materials,
Год журнала:
2024,
Номер
7(6)
Опубликована: Май 21, 2024
Transition
metal
phosphides
(TMPs)
have
emerged
as
an
alternative
to
precious
metals
efficient
and
low‐cost
catalysts
for
water
electrolysis.
Elemental
doping
morphology
control
are
effective
approaches
further
improve
the
performance
of
TMPs.
Herein,
Fe‐doped
CoP
nanoframes
(Fe‐CoP
NFs)
with
specific
open
cage
configuration
were
designed
synthesized.
The
unique
nano‐framework
structured
Fe‐CoP
material
shows
overpotentials
only
255
122
mV
at
10
mA
cm
−2
oxygen
evolution
reaction
(OER)
hydrogen
(HER),
respectively,
overwhelming
most
transition
phosphides.
For
overall
splitting,
cell
voltage
is
1.65
V
NFs
a
current
density
,
much
superior
what
observed
classical
nanocubic
structures.
show
no
activity
degradation
up
100
h
which
contrasts
sharply
rapidly
decaying
noble
catalyst
reference.
electrocatalytic
due
abundant
accessible
active
sites,
reduced
kinetic
energy
barrier,
preferable
*O‐containing
intermediate
adsorption
demonstrated
through
experimental
observations
theoretical
calculations.
Our
findings
could
provide
potential
method
preparation
multifunctional
hollow
structures
offer
more
hopeful
prospects
obtaining
earth‐abundant
splitting.
Energy & Fuels,
Год журнала:
2024,
Номер
38(8), С. 6659 - 6678
Опубликована: Апрель 2, 2024
Equimolar
or
nearly
molar
mixtures
of
five
more
metals
are
used
to
create
high-entropy
oxides
(HEOs).
HEOs
also
possess
the
kinetic
slow
diffusion
effect,
structural
lattice
distortion,
thermodynamic
and
cocktail
effect.
Consequently,
a
growing
number
scientists
investigating
oxides.
High
active
site
density,
low
overpotential,
entropic
stabilization
effects
main
reasons
why
now
show
good
electrocatalytic
oxygen
evolution
reaction.
However,
complexity
elemental
composition,
organization,
surface
morphology
limits
use
HEOs.
The
development
mechanisms
behind
OER
reviewed
in
this
work,
along
with
description
response
pathways
evaluation
standards.
performance
diverse
organizational
structures
is
research
because
come
variety
kinds.
Additionally,
when
utilized
as
carriers,
trend
examined.
Lastly,
potential
future
problems
opportunities
for
HEO
electrocatalysts
discussed.
Chemical Science,
Год журнала:
2024,
Номер
15(38), С. 15540 - 15564
Опубликована: Янв. 1, 2024
This
review
summarizes
recent
advances
in
MXene
and
transition
metal
oxide
(TMO)
electrocatalysts
for
enhancing
oxygen
evolution
reaction
(OER),
concluding
with
key
findings
future
research
directions
further
improvements.
Abstract
Cu(OH)
2
has
the
advantages
of
ease
structural
regulation,
good
conductivity,
and
relatively
low
cost,
making
it
a
suitable
candidate
material
for
use
as
an
electrocatalyst.
However,
its
catalytic
efficiency
stability
still
need
to
be
improved
further.
Therefore,
/Cu
S
was
successfully
prepared
on
copper
foam
(CF)
using
in
situ
growth
hydrothermal
method.
The
characterization
showed
that
sulfidation
treatment
induced
transformation
/CF
from
smooth
nanorods
into
coral‐like
structure,
which
exposed
more
active
sites
enhanced
performance
electrocatalytic
hydrogen
evolution
reaction
(HER).
Compared
with
,
better
alkaline
HER
performance,
especially
when
vulcanization
concentration
0.1
M,
overpotential
174
mV,
kinetics
64
mv
dec
−1
at
current
density
10
mA
cm
−2
.
In
this
work,
morphology
electronic
structure
copper‐based
metal
sulfide
electrocatalysts
were
adjusted
by
treatment,
provided
new
reference
improving
performance.
Energy & environment materials,
Год журнала:
2024,
Номер
7(6)
Опубликована: Май 21, 2024
Transition
metal
phosphides
(TMPs)
have
emerged
as
an
alternative
to
precious
metals
efficient
and
low‐cost
catalysts
for
water
electrolysis.
Elemental
doping
morphology
control
are
effective
approaches
further
improve
the
performance
of
TMPs.
Herein,
Fe‐doped
CoP
nanoframes
(Fe‐CoP
NFs)
with
specific
open
cage
configuration
were
designed
synthesized.
The
unique
nano‐framework
structured
Fe‐CoP
material
shows
overpotentials
only
255
122
mV
at
10
mA
cm
−2
oxygen
evolution
reaction
(OER)
hydrogen
(HER),
respectively,
overwhelming
most
transition
phosphides.
For
overall
splitting,
cell
voltage
is
1.65
V
NFs
a
current
density
,
much
superior
what
observed
classical
nanocubic
structures.
show
no
activity
degradation
up
100
h
which
contrasts
sharply
rapidly
decaying
noble
catalyst
reference.
electrocatalytic
due
abundant
accessible
active
sites,
reduced
kinetic
energy
barrier,
preferable
*O‐containing
intermediate
adsorption
demonstrated
through
experimental
observations
theoretical
calculations.
Our
findings
could
provide
potential
method
preparation
multifunctional
hollow
structures
offer
more
hopeful
prospects
obtaining
earth‐abundant
splitting.
