Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
urea
oxidation
reaction
(UOR)
presents
a
more
favorable
alternative
to
the
conventional
oxygen
evolution
(OER)
for
hydrogen
production
due
its
lower
thermodynamic
potential.
This
method
offers
advantages
over
traditional
approaches
operating
conditions
and
potentially
costs.
However,
complex
6-electron
transfer
process
in
UOR
limits
performance.
Researchers
are
tackling
this
challenge
by
designing
advanced
electrocatalysts
with
optimized
properties,
such
as
porosity,
heterostructures,
controlled
defects,
surface
functionalization,
fine-tuned
electronic
structures.
significant
progress
catalyst
design
holds
promise
future
of
clean
energy
technologies.
In
view
this,
layered
double
hydroxides
(LDHs)
attracting
interest
their
potential
role
electrolysis
synergistic
cooperation
metals,
flexible
configuration,
tunable
composition
unique
structure.
review
examines
recent
advancements
synthesis
LDH-based
catalysts.
Beyond
highlighting
breakthroughs
catalysts,
critically
stresses
strategies
challenges
towards
conversion.
Moreover,
comprehensive
approach
provides
valuable
forward-looking
perspective
on
research
directions.
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.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(47), С. 17263 - 17271
Опубликована: Ноя. 11, 2024
To
align
with
the
high-energy
conversion
efficiency
in
electrochemical
synthesis
of
hydrogen
carriers,
it
is
pivotal
to
boost
reaction
kinetics
anode
electrolytic
cell.
Electrocatalytic
urea
oxidation
(UOR)
has
gained
attention
as
a
promising
alternative
water
due
its
small
theoretical
potential.
However,
application
UOR
confronted
great
challenges
unsatisfactory
current
under
low
Herein,
we
developed
self-supported
electrode,
heterogeneous
cobalt
phosphide,
and
nickel
phosphide-modified
nickel–cobalt
alloy
nanotube
arrays
foam
skeleton
support
(CoP3–Ni2P–CoxNi1–x
NTAs/NF)
improve
performance
by
optimizing
local
charge
distribution
active
Ni
sites.
The
CoP3–Ni2P–CoxNi1–x
NTAs/NF
electrode
exhibited
excellent
activity
potential
1.36
V
(vs
RHE)
at
100
mA
cm–2.
Surface
structure
analysis
situ
Raman
results
revealed
that
synchronous
CoNi
alloying
CoP3–Ni2P
introduction
boosted
formation
Ni3+–O
species
caused
modulated
surface
electronic
atoms,
thus
accelerating
interfacial
electrocatalysis.
This
work
presents
new
option
for
template
catalysts
efficient
reactions.
Energy-efficient
water
electrolysis
is
one
of
the
most
promising
techniques
for
generating
green
hydrogen
as
a
carbon-free
energy
source.
As
half-reaction
splitting,
oxygen
evolution
reaction
kinetically
sluggish,
leading
to
large
thermodynamic
potential
gaps
compared
reaction.
In
terms
cost-effective
generation,
mitigating
this
overpotential
challenging
obstacle,
but
it
remains
hurdle
overcome.
It
necessary
advance
energy-saving
production
by
substituting
with
an
thermodynamically
favorable
anodic
Additionally,
depending
on
specific
small
molecules
used
oxidation
reaction,
possible
reduce
environmentally
harmful
substances
and
produce
value-added
chemicals.
Nickel-based
electrocatalysts
have
received
growing
attention
their
application
in
electrochemical
reactions
due
affordability,
versatility
structural
tuning,
ability
function
active
sites
bond
formation
cleavage.
The
purpose
paper
probe
how
morphology,
structure,
composition
these
catalysts
affect
electrocatalyst
performance
molecule
oxidation.
Explaining
relationships
can
accelerate
development
sustainable
identifying
design
principles
high-performance
nickel-based
electrocatalysts.
Energy & Fuels,
Год журнала:
2024,
Номер
38(18), С. 17297 - 17308
Опубликована: Авг. 27, 2024
With
continuous
depletion
of
fossil
fuels,
a
hike
in
global
temperature
due
to
CO2
emissions,
and
increasing
population
Earth,
the
demand
for
alternative
green
renewable
energy
sources
has
become
undeniable.
Hydrogen,
potential
fuel
production,
can
be
produced
way
by
water
electrolysis
with
little
no
carbon
emissions.
As
some
parts
world
still
face
challenge
drinking
crisis,
using
clean,
drinkable
hydrogen
production
becomes
concern.
Households,
agriculture,
pharmacies,
industries
release
lot
polluted
wastewater
into
environment,
biological
oxygen
causing
ecological
imbalance.
If
is
used
as
feedstock
producing
hydrogen,
it
address
both
crisis
scarcity.
In
this
review,
from
classified
two
parts:
direct
treatment
methods
followed
generation.
The
technology,
beyond
all
doubt,
beneficial
generation,
reducing
emission
contributing
net-zero
future.
Polymers,
Год журнала:
2024,
Номер
16(17), С. 2538 - 2538
Опубликована: Сен. 7, 2024
The
amount
of
end-of-life
electrical
and
electronic
devices
has
been
widely
increased,
globally.
This
emphasizes
how
recycling
waste
electric
equipment
(WEEE)
is
essential
in
order
to
reduce
the
WEEE
that
disposed
directly
environment.
Plastics
account
for
a
big
percentage
WEEE,
almost
20%.
As
result,
application
methods
on
plastics
gathered
from
great
importance
since,
this
way,
landfill
disposal
can
be
reduced.
Nevertheless,
despite
advantages,
there
are
lot
difficulties,
such
as
variety
different
present
plastic
mix
existence
various
additives
parts,
instance,
brominated
flame
retardants
need
special
attention
during
their
treatments,
which
restricts
wide
application.
Considering
all
these,
review
aims
provide
readers
with
current
techniques
perspectives
available
both
thermal
catalytic
retrieved
WEEE.
Apart
up-to-date
information
methods,
review,
emphasis
also
given
advantages
each
method
offers
difficulties
limitations
may
prevent
them
being
applied
large
scale.
Current
challenges
critically
examined,
including
use
mechanical
or
thermo-chemical
recycling,
treatment
individual
polymers
polymer
blends
separation
harmful
before
not.
Finally,
emerging
technologies
briefly
discussed.
