Developing
energy
production,
storage,
and
conversion
technologies
based
on
sustainable
or
renewable
is
essential
to
address
the
environmental
crisis.
Electrochemical
water
splitting
one
of
most
promising
approaches
realize
production
green
hydrogen.
The
design
catalytic
materials
with
low
cost,
high
activity,
long‐term
stability
exploration
specific
reaction
mechanisms
are
key
focus
for
involved
electrochemical
hydrogen
evolution
(HER).
Recently,
substantial
efforts
have
been
devoted
rational
synthesis
non‐noble
metallic
heterostructures
fascinating
synergistic
effects
among
different
components.
These
heterostructured
demonstrate
comprehensive
properties
exceeding
estimations
by
rule
mixtures
display
activity
in
industrial
conditions
HER.
Herein,
mechanism
parameters
improving
performance
HER
process
discussed
detail.
latest
advances
synthetic
methods
electrocatalytic
characteristics
from
experimental
computational
perspectives
summarized
according
role
various
insights
provided
this
review
into
an
in‐depth
understanding
as
electrocatalysts,
opportunities
challenges
scale
up
future‐oriented
developments
highlighted.
Energy & Environmental Science,
Год журнала:
2023,
Номер
16(3), С. 1100 - 1110
Опубликована: Янв. 1, 2023
The
ultrafast
solution
combustion
synthesis
of
heterogeneous
interface
is
developed
to
boost
anodic
organic
upgrading
reaction,
which
exhibits
remarkable
current
density
and
faradaic
efficiency
benefiting
from
the
strong
electronic
interaction.
Advanced Materials,
Год журнала:
2023,
Номер
35(48)
Опубликована: Сен. 6, 2023
The
continuous
oxidation
and
leachability
of
active
sites
in
Ru-based
catalysts
hinder
practical
application
proton-exchange
membrane
water
electrolyzers
(PEMWE).
Herein,
robust
inter-doped
tungsten-ruthenium
oxide
heterostructures
[(Ru-W)Ox
]
fabricated
by
sequential
rapid
metal
thermomigration
processes
are
proposed
to
enhance
the
activity
stability
acidic
oxygen
evolution
reaction
(OER).
introduction
high-valent
W
species
induces
valence
oscillation
Ru
during
OER,
facilitating
cyclic
transition
states
maintaining
operation
sites.
preferential
electronic
gain
heterostructure
significantly
stabilize
RuOx
on
WOx
substrates
beyond
Pourbaix
limit
bare
RuO2
.
Furthermore,
asymmetric
Ru-O-W
units
generated
around
interface
adsorb
intermediates
synergistically,
enhancing
intrinsic
OER
activity.
Consequently,
(Ru-W)Ox
not
only
demonstrate
an
overpotential
170
mV
at
10
mA
cm-2
excellent
300
h
electrolytes
but
also
exhibit
potential
for
applications,
as
evidenced
stable
0.5
A
PEMWE.
Abstract
The
hydrogen
energy
generated
by
the
electrocatalytic
water
splitting
reaction
has
been
established
as
a
renewable
and
clean
carrier
with
ultra‐high
density,
which
can
well
make
up
for
shortcomings
of
conventional
sources,
such
geographical
limitations,
climatic
dependence,
wastage.
Notably,
introduction
electrocatalysts
enhance
efficiency
process
to
generate
hydrogen.
Particularly,
heterostructure
constructed
coupling
multiple
components
(or
phases)
have
emerged
most
promising
option
due
well‐known
electronic
synergistic
effects.
existing
reviews
on
interface
engineering
electrocatalyst
design
mostly
focus
relationship
between
heterostructures
specific
reactions.
However,
comprehensive
overview
integration
model
building,
directional
synthesis,
mechanism
rarely
reported.
To
this
end,
in
review,
development
catalysts
is
systematically
introduced
from
perspective
classification,
growth
regulation
performance
based
interfacial
microenvironment
(bonding,
configuration,
lattice
strain,
etc.),
thereby
offering
useful
insights
construction
models.
Besides,
combined
current
applications
strategies,
challenges
future
are
discussed
relevant
solutions
proposed.
Overall,
review
serve
theoretical
reference
mechanism,
further
promote
production
technologies
low
consumption
high
yield.
image
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(12)
Опубликована: Янв. 8, 2023
Abstract
Coupling
urea
oxidation
reaction
(UOR)
with
hydrogen
evolution
(HER)
is
an
effective
energy‐saving
technique
for
generation.
However,
exploring
efficient
bifunctional
electrocatalysts
under
high
current
density
still
challenging.
Herein,
hierarchical
Fe
doped
cobalt
selenide
coupled
FeCo
layered
double
hydroxide
(Fe‐Co
0.85
Se/FeCo
LDH)
array
as
a
self‐supported
superior
heterojunction
electrode
rationally
designed
both
UOR
and
HER.
The
unique
heterostructure
facilitates
electron
transfer
interface
interactions
through
local
interfacial
Co‐Se/O‐Fe
bonding
environment
modulation,
improving
kinetics
intrinsic
activity.
As
result,
the
heterostructured
electrocatalyst
exhibits
ultralow
potentials
of
−0.274
1.48
V
to
reach
500
mA
cm
−2
catalyzing
HER
UOR,
respectively.
Particularly,
full
electrolysis
system
driven
by
Fe‐Co
LDH
delivers
300
at
relatively
low
potential
1.57
V,
which
150
mV
lower
than
conventional
water
electrolysis.
combination
in
situ
characterization
theoretical
analysis
reveal
that
active
sites
adjustable
electronic
are
induced
heterojunction,
facilitating
decomposition
stabilization
intermediates
UOR.
This
work
inspires
modulation
optimize
advanced
H
2
production.
Advanced Functional Materials,
Год журнала:
2022,
Номер
33(1)
Опубликована: Окт. 26, 2022
Abstract
Designing
well‐defined
interfacial
chemical
bond
bridges
is
an
effective
strategy
to
optimize
the
catalytic
activity
of
metal–organic
frameworks
(MOFs),
but
it
remains
challenging.
Herein,
a
facile
in
situ
growth
reported
for
synthesis
tightly
connected
2D/2D
heterostructures
by
coupling
MXene
with
CoBDC
nanosheets.
The
multifunctional
nanosheets
high
conductivity
and
ideal
hydrophilicity
as
bridging
carriers
can
ensure
structural
stability
sufficient
exposure
active
sites.
Moreover,
Co–O–Ti
formed
at
interface
effectively
triggers
charge
transfer
modulates
electronic
structure
Co‐active
site,
which
enhances
reaction
kinetics.
As
result,
optimized
CoBDC/MXene
exhibits
superior
hydrogen
evolution
(HER)
low
overpotentials
29,
41,
76
mV
10
mA
cm
−2
alkaline,
acidic,
neutral
electrolytes,
respectively,
comparable
commercial
Pt/C.
Theoretical
calculation
demonstrates
that
bridging‐induced
electron
redistribution
optimizes
free
energy
water
dissociation
adsorption,
resulting
improved
evolution.
This
study
not
only
provides
novel
electrocatalyst
efficient
HER
all
pH
conditions
also
opens
up
new
avenue
designing
highly
systems.
ACS Nano,
Год журнала:
2023,
Номер
17(2), С. 1701 - 1712
Опубликована: Янв. 9, 2023
The
scalable
production
of
inexpensive,
efficient,
and
robust
catalysts
for
oxygen
evolution
reaction
(OER)
that
can
deliver
high
current
densities
at
low
potentials
is
critical
the
industrial
implementation
water
splitting
technology.
Herein,
a
series
metal
oxides
coupled
with
Fe
Advanced Functional Materials,
Год журнала:
2022,
Номер
32(47)
Опубликована: Сен. 16, 2022
Abstract
High‐entropy
materials
(HEMs)
have
been
in
the
spotlight
as
emerging
catalysts
for
electrochemical
water
splitting.
In
particular,
HEM
feature
multi‐element
active
sites
and
unsaturated
coordination
well
entropy
stabilization
comparison
with
their
single‐element
counterparts.
Herein,
a
comprehensive
overview
of
used
splitting
is
provided,
covering
both
hydrogen
evolution
reaction
(HER)
oxygen
(OER).
Particularly,
review
begins
discussions
concept
structure
HEMs.
addition,
effective
strategies
rationally
designing
HEMs
on
basis
computational
techniques
experimental
aspects
described.
Importantly,
importance
computationally
aided
methods,
that
is,
density
functional
theory
calculations,
high‐throughput
screening,
machine
learning,
to
discovery
design
HEMs,
Furthermore,
applications
field
electrolysis
are
reviewed.
Eventually,
an
outlook
regarding
prospects
future
opportunities
provided.
Advanced Energy Materials,
Год журнала:
2022,
Номер
13(1)
Опубликована: Ноя. 6, 2022
Abstract
The
strategy
of
heteroatom
doping
and
metal
active
sites
can
synergistically
promote
oxygen
electrocatalysis.
Especially,
the
combination
theoretical
simulations
with
experimental
results
provides
new
opportunities
to
understand
electrocatalytic
mechanism.
Herein,
3D
carbon
nanosheets
aggregate
highly
branched
nanotubes
cobalt
(CoCNTs/PNAs)
is
prepared
via
facile
self‐assembly‐pyrolysis
strategy.
CoCNTs/PNAs
electrocatalysts
exhibit
superior
bifunctional
activities
reduction
(
E
1/2
=
0.925
V)
evolution
j
10
1.54
reactions,
surpassing
those
Pt/C‐RuO
2
catalysts.
calculations
reveal
that
electronic
interaction
nitrogen‐doped
matrix
plays
a
critical
role
in
boosting
performance.
Additionally,
rechargeable
Zn‐Air
battery
(ZAB)
assembled
aqueous
electrolyte
exhibits
largest
power
density
371.6
mW
cm
−2
outstanding
cycling
durability
(over
2000
h).
Furthermore,
all‐solid‐state
cable‐type
ZAB
delivers
high
flexibility
good
stability
energy
efficiency
(76.5%).
This
work
will
open
avenue
adjust
metal‐carbon
support
for
functional
electrocatalysis
hierarchical
porous
structure
design.