Angewandte Chemie International Edition,
Год журнала:
2022,
Номер
61(27)
Опубликована: Апрель 25, 2022
Developing
new
strategies
to
advance
the
fundamental
understanding
of
electrochemistry
is
crucial
mitigating
multiple
contemporary
technological
challenges.
In
this
regard,
magnetoelectrochemistry
offers
many
strategic
advantages
in
controlling
and
electrochemical
reactions
that
might
be
tricky
regulate
conventional
fields.
However,
topic
highly
interdisciplinary,
combining
concepts
from
electrochemistry,
hydrodynamics,
magnetism
with
experimental
outcomes
are
sometimes
unexpected.
Review,
we
survey
recent
advances
using
a
magnetic
field
different
applications
organized
by
effect
generated
forces
on
principles
focus
how
leads
observed
results.
Finally,
discuss
challenges
remain
addressed
establish
robust
capable
meeting
present
needs.
Energy & environment materials,
Год журнала:
2022,
Номер
6(5)
Опубликована: Май 28, 2022
Electrochemical
water
splitting
represents
one
of
the
most
promising
technologies
to
produce
green
hydrogen,
which
can
help
realize
goal
achieving
carbon
neutrality.
While
substantial
efforts
on
a
laboratory
scale
have
been
made
for
understanding
fundamental
catalysis
and
developing
high‐performance
electrocatalysts
two
half‐reactions
involved
in
electrocatalysis,
much
less
attention
has
paid
doing
relevant
research
larger
scale.
For
example,
few
such
researches
done
an
industrial
Herein,
we
review
very
recent
endeavors
bridge
gaps
between
applications
electrolysis.
We
begin
by
introducing
fundamentals
electrochemical
then
present
comparisons
testing
protocol,
figure
merit,
catalyst
interest,
manufacturing
cost
industry‐based
water‐electrolysis
research.
Special
is
tracking
surface
reconstruction
process
identifying
real
catalytic
species
under
different
conditions,
highlight
significant
distinctions
corresponding
mechanisms.
Advances
designs
industry‐relevant
electrolysis
are
also
summarized,
reveal
progress
moving
practical
forward
accelerating
synergies
material
science
engineering.
Perspectives
challenges
electrocatalyst
design
strategies
proposed
finally
further
lab‐scale
large‐scale
electrocatalysis
applications.
Deleted Journal,
Год журнала:
2022,
Номер
1, С. e9120032 - e9120032
Опубликована: Сен. 8, 2022
Proton
exchange
membrane
water
electrolyzer
(PEMWE)
represents
a
promising
technology
for
the
sustainable
production
of
hydrogen,
which
is
capable
efficiently
coupling
to
intermittent
electricity
from
renewable
energy
sources
(e.g.,
solar
and
wind).
The
with
compact
stack
structure
has
many
notable
advantages,
including
large
current
density,
high
hydrogen
purity,
great
conversion
efficiency.
However,
use
expensive
electrocatalysts
construction
materials
leads
costs
limited
application.
In
this
review,
recent
advances
made
in
key
PEMWE
are
summarized.
First,
we
present
brief
overview
about
basic
principles,
thermodynamics,
reaction
kinetics
PEMWE.
We
then
describe
cell
components
their
respective
functions,
as
well
discuss
research
status
such
membrane,
electrocatalysts,
electrode
assemblies,
gas
diffusion
layer,
bipolar
plate.
also
attempt
clarify
degradation
mechanisms
under
real
operating
environment,
catalyst
degradation,
plate
layer
degradation.
finally
propose
several
future
directions
developing
through
devoting
more
efforts
materials.
Advanced Materials,
Год журнала:
2022,
Номер
34(21)
Опубликована: Апрель 1, 2022
Achieving
efficient
and
durable
nonprecious
hydrogen
evolution
reaction
(HER)
catalysts
for
scaling
up
alkaline
water/seawater
electrolysis
is
desirable
but
remains
a
significant
challenge.
Here,
heterogeneous
Ni-MoN
catalyst
consisting
of
Ni
MoN
nanoparticles
on
amorphous
nanorods
that
can
sustain
large-current-density
HER
with
outstanding
performance
demonstrated.
The
hierarchical
nanorod-nanoparticle
structure,
along
large
surface
area
multidimensional
boundaries/defects
endows
the
abundant
active
sites.
hydrophilic
helps
to
achieve
accelerated
gas-release
capabilities
effective
in
preventing
degradation
during
water
electrolysis.
Theoretical
calculations
further
prove
combination
effectively
modulates
electron
redistribution
at
their
interface
promotes
sluggish
water-dissociation
kinetics
Mo
Consequently,
this
requires
low
overpotentials
61
136
mV
drive
current
densities
100
1000
mA
cm-2
,
respectively,
1
m
KOH
stable
operation
200
h
constant
density
or
500
.
This
good
also
works
well
seawater
electrolyte
shows
toward
overall
ultralow
cell
voltages.
Abstract
Hydrogen,
a
new
energy
carrier
that
can
replace
traditional
fossil
fuels,
is
seen
as
one
of
the
most
promising
clean
sources.
The
use
renewable
electricity
to
drive
hydrogen
production
has
very
broad
prospects
for
addressing
and
environmental
problems.
Therefore,
many
researchers
favor
electrolytic
water
due
its
green
low‐cost
advantages.
reaction
comprises
oxygen
evolution
(OER)
(HER).
Understanding
OER
HER
mechanisms
in
acidic
alkaline
processes
contributes
further
studying
design
surface
regulation
catalysts.
catalysts
are
mainly
reviewed
defects,
doping,
alloying,
reconstruction,
crystal
structure,
heterostructures.
Besides,
recent
overall
splitting
also
reviewed.
Finally,
this
review
paves
way
rational
synthesis
materials
highly
efficient
electrocatalysis.
Chemical Society Reviews,
Год журнала:
2023,
Номер
52(16), С. 5652 - 5683
Опубликована: Янв. 1, 2023
This
review
scrutinizes
recent
progress
in
PEMWE
system
including
mechanisms,
the
correlation
among
structure-composition–performance,
manufacturing,
design
and
operation
protocols.
The
challenges
perspectives
for
applications
are
proposed.
Chemical Reviews,
Год журнала:
2024,
Номер
124(7), С. 3694 - 3812
Опубликована: Март 22, 2024
Electrocatalytic
water
splitting
driven
by
renewable
electricity
has
been
recognized
as
a
promising
approach
for
green
hydrogen
production.
Different
from
conventional
strategies
in
developing
electrocatalysts
the
two
half-reactions
of
(e.g.,
and
oxygen
evolution
reactions,
HER
OER)
separately,
there
growing
interest
designing
bifunctional
electrocatalysts,
which
are
able
to
catalyze
both
OER.
In
addition,
considering
high
overpotentials
required
OER
while
limited
value
produced
oxygen,
is
another
rapidly
exploring
alternative
oxidation
reactions
replace
hybrid
toward
energy-efficient
generation.
This
Review
begins
with
an
introduction
on
fundamental
aspects
splitting,
followed
thorough
discussion
various
physicochemical
characterization
techniques
that
frequently
employed
probing
active
sites,
emphasis
reconstruction
during
redox
electrolysis.
The
design,
synthesis,
performance
diverse
based
noble
metals,
nonprecious
metal-free
nanocarbons,
overall
acidic
alkaline
electrolytes,
thoroughly
summarized
compared.
Next,
their
application
also
presented,
wherein
anodic
include
sacrificing
agents
oxidation,
pollutants
oxidative
degradation,
organics
upgrading.
Finally,
concise
statement
current
challenges
future
opportunities
presented
hope
guiding
endeavors
quest
sustainable
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Март 14, 2023
Exploring
durable
electrocatalysts
with
high
activity
for
oxygen
evolution
reaction
(OER)
in
acidic
media
is
of
paramount
importance
H2
production
via
polymer
electrolyte
membrane
electrolyzers,
yet
it
remains
urgently
challenging.
Herein,
we
report
a
synergistic
strategy
Rh
doping
and
surface
vacancies
to
precisely
regulate
unconventional
OER
path
the
Ru-O-Rh
active
sites
Rh-RuO2,
simultaneously
boosting
intrinsic
stability.
The
stabilized
low-valent
catalyst
exhibits
remarkable
performance,
an
overpotential
161
mV
at
10
mA
cm-2
retention
99.2%
exceeding
700
h
50
cm-2.
Quasi
situ/operando
characterizations
demonstrate
recurrence
reversible
species
under
working
potentials
enhanced
durability.
It
theoretically
revealed
that
Rh-RuO2
passes
through
more
optimal
lattice
mediated
mechanism-oxygen
vacancy
site
mechanism
induced
by
interaction
defects
rate-determining
step
*O
formation,
breaking
barrier
limitation
(*OOH)
traditional
adsorption
mechanism.
