Tungsten,
Год журнала:
2024,
Номер
6(4), С. 675 - 695
Опубликована: Март 16, 2024
Abstract
Hydrogen
fuel
is
recognized
as
a
promising
energy
carrier
for
the
sustainable
development
of
global
system
and
green
hydrogen
production
via
water
electrolysis
attracts
great
interest.
The
cost-effective
electrocatalysts
important
enhancing
efficiency.
Recently,
tungsten
pnictides
(phosphides
nitrides)
have
emerged
catalysts
electrolysis,
efficient
pnictide-based
with
different
nanostructures,
compositions,
surface
chemical
properties
been
developed.
In
this
review,
recent
progress
in
design
comprehensively
analyzed.
synthesis
are
discussed
briefly.
Then,
current
achievements
developing
pnictide
detailed,
four
key
catalyst
strategies
(i.e.,
nanostructure
control,
heteroatom
doping,
defect
engineering,
heterostructure
design)
outlined.
physicochemical
properties-catalytic
performance
relationship
also
discussed.
At
last,
perspectives
field
put
forward
guiding
further
research
on
application
high-performance
electrocatalysts.
Energy & Fuels,
Год журнала:
2024,
Номер
38(9), С. 8249 - 8261
Опубликована: Апрель 11, 2024
Water
is
the
most
convenient
and
facile
fossil-free
source
for
production
of
hydrogen
(H2).
Electrochemical
water
splitting
considered
a
promising
potential
approach
accomplishing
frugality.
Although
water-splitting
reaction
versatile
green
technique,
it
accounts
only
4%
universal
H2
production.
The
main
hindrance
in
large-scale
sluggish
kinetics
reaction,
which
employs
costlier
precious
catalysts.
In
addition,
half-cell
reactions
evolution
(HER)
oxygen
(OER)
require
two
different
types
catalysts,
not
increases
cost
but
also
decreases
efficiency
due
to
enhanced
complexity
system.
Hence,
designing
an
efficient,
robust,
nonprecious,
earth-abundant,
low-cost
electrocatalyst
capable
catalyzing
both
HER
OER
during
overall
urgent
requirement
meet
energy
demand
sustainable
growth.
Here,
highly
bifunctional
fabricated
using
quinone-substituted
cobalt(II)
phthalocyanine
(HQCoPc)
with
carbon
nanoparticles
(Ketjen
black,
KB).
organic
hybrid
HQCoPc
+
KB
modified
on
GCE
Ni
foam
showed
remarkable
electrocatalytic
performance
acidic
basic
conditions,
respectively.
composite
affords
lower
onset
76
mV
overpotential
234
360
at
10
mA·cm–2
OER,
respectively,
superior
stability
more
than
40,000
s.
designed
offers
better
catalyst
addressing
provides
cost-effectiveness
good
chemical
technology.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Июнь 26, 2024
Abstract
Electrocatalysis
represents
an
efficient
and
eco‐friendly
approach
to
energy
conversion,
enabling
the
sustainable
synthesis
of
valuable
chemicals
fuels.
The
deliberate
engineering
electrocatalysts
is
crucial
improving
efficacy
scalability
electrocatalysis.
Notably,
occurrence
in
situ
amorphization
within
has
been
observed
during
various
electrochemical
processes,
influencing
conversion
efficiency
catalytic
mechanism
understanding.
Of
note,
dynamic
transformation
catalysts
into
amorphous
structures
complex,
often
leading
configurations.
Therefore,
revealing
this
process
understanding
function
species
are
pivotal
for
elucidating
structure‐activity
relationship
electrocatalysts,
which
will
direct
creation
highly
catalysts.
This
review
examines
mechanisms
behind
structure
formation,
summarizes
characterization
methods
detecting
species,
discusses
strategies
controlling
(pre)catalyst
properties
conditions
that
influence
amorphization.
It
also
emphasizes
importance
spontaneously
formed
oxidation
reduction
reactions.
Finally,
it
addresses
challenges
electrocatalysts.
aiming
guide
efficient,
selective,
stable
reactions,
inspire
future
advancements
field.
Molecules,
Год журнала:
2024,
Номер
29(2), С. 465 - 465
Опубликована: Янв. 17, 2024
The
high
electrons
and
holes
recombination
rate
of
ZnIn2S4
significantly
limits
its
photocatalytic
performance.
Herein,
a
simple
in
situ
photodeposition
strategy
is
adopted
to
introduce
the
cocatalyst
cobalt
phosphate
(Co-Pi)
on
ZnIn2S4,
aiming
at
facilitating
separation
electron–hole
by
promoting
transfer
photogenerated
ZnIn2S4.
study
reveals
that
composite
catalyst
has
superior
performance
than
blank
In
particular,
loaded
with
5%
Co-Pi
(ZnIn2S4/5%Co-Pi)
best
activity,
H2
production
reaches
3593
μmol·g−1·h−1,
approximately
double
alone.
Subsequent
characterization
data
demonstrate
introduction
facilitates
holes,
thus
improving
efficiency
carrier
separation.
This
investigation
focuses
rational
utilization
high-content
rich
cocatalysts
earth
design
low-cost
efficient
catalysts
achieve
sustainable
hydrogen
evolution.
