Chemical Society Reviews,
Journal Year:
2023,
Volume and Issue:
52(23), P. 8319 - 8373
Published: Jan. 1, 2023
In
this
review,
we
provide
a
comprehensive
summary
of
recent
advances
in
the
synthesis
strategies,
design
principles,
and
characterization
technologies
high
entropy
alloys,
their
applications
various
electrocatalytic
conversion
reactions.
ACS Nano,
Journal Year:
2021,
Volume and Issue:
16(1), P. 1072 - 1081
Published: Dec. 17, 2021
Ammonia
(NH3)
is
an
essential
ingredient
in
agriculture
and
a
promising
source
of
clean
energy
as
hydrogen
carrier.
The
current
major
method
for
ammonia
production,
however,
the
Haber-Bosch
process
that
leads
to
massive
consumption
severe
environmental
issues.
Compared
with
nitrogen
(N2)
reduction,
electrochemical
nitrate
reduction
reaction
(NO3RR),
higher
NH3
yield
rate
Faradaic
efficiency,
holds
promise
efficient
production
under
ambient
conditions.
To
achieve
NO3RR,
electrocatalysts
should
exhibit
high
selectivity
efficiency
rate.
In
this
work,
we
developed
two-dimensional
(2D)
iron-based
cyano-coordination
polymer
nanosheets
(Fe-cyano
NSs)
following
situ
treatment
high-rate
NO3RR.
Owing
strong
adsorption
on
Fe0
active
sites
generated
via
topotactic
conversion
electroreduction,
2D
Fe-cyano
electrocatalyst
exhibits
catalytic
activity
42.1
mg
h-1
mgcat-1
over
90%
toward
at
-0.5
V
(vs
reversible
electrode,
RHE).
Further
characterizations
revealed
superhydrophilic
surface
enhanced
area
porous
nanostructures
also
contributed
NO3RR
activity.
An
electrolyzer
oxygen
evolution
(OER)
two-electrode
configuration
constructed
based
Fe-cyano,
achieving
26.2%.
This
work
provides
alternative
methodology
transition
metal
reveals
often-overlooked
contribution
hydrophilicity
catalysts
electrocatalysis.
Nano-Micro Letters,
Journal Year:
2023,
Volume and Issue:
15(1)
Published: Feb. 16, 2023
The
electrocatalytic
water
splitting
technology
can
generate
high-purity
hydrogen
without
emitting
carbon
dioxide,
which
is
in
favor
of
relieving
environmental
pollution
and
energy
crisis
achieving
neutrality.
Electrocatalysts
effectively
reduce
the
reaction
barrier
increase
efficiency.
Facet
engineering
considered
as
a
promising
strategy
controlling
ratio
desired
crystal
planes
on
surface.
Owing
to
anisotropy,
with
different
orientations
usually
feature
facet-dependent
physical
chemical
properties,
leading
differences
adsorption
energies
oxygen
or
intermediates,
thus
exhibit
varied
activity
toward
evolution
(HER)
(OER).
In
this
review,
brief
introduction
basic
concepts,
fundamental
understanding
mechanisms
well
key
evaluating
parameters
for
both
HER
OER
are
provided.
formation
facets
comprehensively
overviewed
aiming
give
scientific
theory
guides
realize
dominant
planes.
Subsequently,
three
strategies
selective
capping
agent,
etching
coordination
modulation
tune
summarized.
Then,
we
present
an
overview
significant
contributions
facet-engineered
catalysts
HER,
OER,
overall
splitting.
particular,
highlight
that
density
functional
calculations
play
indispensable
role
unveiling
structure–activity
correlation
between
plane
catalytic
activity.
Finally,
remaining
challenges
provided
future
prospects
designing
advanced
electrocatalysts
discussed.
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(20)
Published: March 20, 2022
Developing
an
efficient
and
non-precious
pH-universal
hydrogen
evolution
reaction
electrocatalyst
is
highly
desirable
for
production
by
electrochemical
water
splitting
but
remains
a
significant
challenge.
Herein,
hierarchical
structure
composed
of
heterostructured
Ni2
P-Ni12
P5
nanorod
arrays
rooted
on
Ni3
S2
film
(Ni2
@Ni3
)
via
simultaneous
corrosion
sulfidation
built
followed
phosphidation
treatment
toward
the
metallic
nickel
foam.
The
combination
theoretical
calculations
with
in/ex
situ
characterizations
unveils
that
such
unique
sequential
phase
conversion
strategy
ensures
strong
interfacial
coupling
between
P
Ni12
as
well
robust
stabilization
1D
heteronanorod
film,
resulting
in
promoted
adsorption/dissociation
energy,
optimized
adsorption
enhanced
electron/proton
transfer
ability
accompanied
excellent
stability.
Consequently,
/NF
requires
only
32,
46,
34
mV
overpotentials
to
drive
10
mA
cm-2
1.0
m
KOH,
0.5
H2
SO4
,
phosphate-buffered
saline
electrolytes,
respectively,
exceeding
almost
all
previously
reported
non-noble
metal-based
electrocatalysts.
This
work
may
pave
new
avenue
rational
design
electrocatalysts
catalysis.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(16)
Published: March 9, 2023
Abstract
Solar‐driven
water
electrolysis
has
been
considered
to
be
a
promising
route
produce
green
hydrogen,
because
the
conventional
system
is
not
completely
renewable
as
it
requires
power
from
nonrenewable
fossil
fuel
sources.
This
review
emphasizes
strategies
for
solar‐driven
electrolysis,
including
construction
of
photovoltaic
(PV)‐water
electrolyzer
systems,
PV‐rechargeable
energy
storage
device‐water
systems
with
solar
sole
input
energy,
and
photoelectrochemical
splitting
systems.
The
basic
discussions
above
are
first
presented.
Meanwhile,
replacing
oxygen
evolution
reaction
electrooxidation
organic
compounds
can
effectively
improve
efficiency
splitting.
Also,
seawater
greatly
broadens
practical
applications
due
abundant
reserves
seawater.
Recent
years
have
witnessed
great
development
in
field
electrolysis.
recent
research
area
subsequently
reviewed.
Finally,
perspectives
on
existing
challenges
along
some
opportunities
further
provided.
Angewandte Chemie International Edition,
Journal Year:
2022,
Volume and Issue:
62(3)
Published: Nov. 18, 2022
Nano
and
single-atom
catalysis
open
new
possibilities
of
producing
green
hydrogen
(H2
)
by
water
electrolysis.
However,
for
the
evolution
reaction
(HER)
which
occurs
at
a
characteristic
rate
proportional
to
potential,
fast
generation
H2
nanobubbles
atomic-scale
interfaces
often
leads
blockage
active
sites.
Herein,
nanoscale
grade-separation
strategy
is
proposed
tackle
mass-transport
problem
utilizing
ordered
three-dimensional
(3d)
interconnected
sub-5
nm
pores.
The
results
reveal
that
3d
criss-crossing
mesopores
with
grade
separation
allow
efficient
diffusion
bubbles
along
channels.
After
support
ultrafine
ruthenium
(Ru),
are
on
superior
level
two-dimensional
system
maximizing
catalyst
performance
obtained
Ru
outperforms
most
other
HER
catalysts.
This
work
provides
potential
route
fine-tuning
few-nanometer
mass
transport
during
Carbon Energy,
Journal Year:
2022,
Volume and Issue:
5(2)
Published: Sept. 26, 2022
Abstract
The
establishment
of
efficient
oxygen
evolution
electrocatalysts
is
great
value
but
also
challenging.
Herein,
a
durable
metal–organic
framework
(MOF)
with
minor
atomically
dispersed
ruthenium
and
an
optimized
electronic
structure
constructed
as
electrocatalyst.
Significantly,
the
obtained
NiRu
0.08
‐MOF
doping
Ru
only
needs
overpotential
187
mV
at
10
mA
cm
−2
Tafel
slop
40
dec
−1
in
0.1
M
KOH
for
reaction,
can
work
continuously
more
than
300
h.
Ultrahigh
mass
activity
achieved,
reaching
56.7
A
g
200
mV,
which
36
times
higher
that
commercial
RuO
2
.
X‐ray
adsorption
spectroscopy
density
function
theory
calculations
reveal
on
metal
sites
MOFs
expected
to
optimize
nickel
sites,
thus
improving
conductivity
catalyst
optimizing
energy
intermediates,
resulting
significant
optimization
electrocatalytic
performance.
This
study
could
provide
new
avenue
design
stable
MOF
electrocatalysts.
Journal of Materials Chemistry A,
Journal Year:
2021,
Volume and Issue:
9(28), P. 15506 - 15521
Published: Jan. 1, 2021
Recent
progress
in
doped
ruthenium
oxides
as
high-efficiency
electrocatalysts
for
the
OER,
which
various
types
of
dopants
and
design
strategies
are
summarized,
with
an
emphasis
on
establishment
structure–activity
relationship.
Energy & Environmental Science,
Journal Year:
2022,
Volume and Issue:
15(5), P. 1882 - 1892
Published: Jan. 1, 2022
A
novel
three-dimensionally
(3D)-ordered
membrane
electrode
assembly
(MEA)
based
on
highly
porous
catalyst
layers
with
unique
vertical
channels,
an
ultrathin
layer
and
3D
interface
structures
was
nanoengineered
for
alkaline
electrolyzers.
Advanced Functional Materials,
Journal Year:
2022,
Volume and Issue:
32(47)
Published: Sept. 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.
