Small,
Journal Year:
2023,
Volume and Issue:
19(45)
Published: July 11, 2023
Abstract
Compared
with
the
traditional
electrolysis
of
water
to
produce
hydrogen,
urea‐assisted
hydrogen
has
significant
advantages
and
received
extensive
attention
from
researchers.
Unfortunately,
urea
oxidation
reaction
(UOR)
involves
a
complex
six‐electron
transfer
process
leading
high
overpotential,
which
forces
researchers
develop
high‐performance
UOR
catalysts
drive
development
splitting.
Based
on
mechanism
literature
research,
this
review
summarizes
strategies
for
preparing
highly
efficient
catalysts.
First,
is
introduced
characteristics
excellent
are
pointed
out.
Aiming
at
this,
following
modulation
proposed
improve
catalytic
performance
based
summarizing
various
literature:
1)
Accelerating
active
phase
formation
reduce
initial
potential;
2)
Creating
double
sites
trigger
new
mechanism;
3)
adsorption
promoting
C─N
bond
cleavage
ensure
effective
conduct
UOR;
4)
Promoting
desorption
CO
2
stability
prevent
catalyst
poisoning;
5)
electron
overcome
inherent
slow
dynamics
6)
Increasing
or
surface
area.
Then,
application
in
electrochemical
devices
summarized.
Finally,
current
deficiencies
future
directions
discussed.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: July 5, 2021
Construction
of
Z-scheme
heterostructure
is
great
significance
for
realizing
efficient
photocatalytic
water
splitting.
However,
the
conscious
modulation
charge
transfer
still
a
challenge.
Herein,
interfacial
Mo-S
bond
and
internal
electric
field
modulated
composed
by
sulfur
vacancies-rich
ZnIn2S4
MoSe2
was
rationally
fabricated
hydrogen
evolution.
Systematic
investigations
reveal
that
induce
mechanism
as
confirmed
surface
photovoltage
spectra,
DMPO
spin-trapping
electron
paramagnetic
resonance
spectra
density
functional
theory
calculations.
Under
intense
synergy
among
bond,
S-vacancies,
optimized
photocatalyst
exhibits
high
evolution
rate
63.21
mmol∙g-1·h-1
with
an
apparent
quantum
yield
76.48%
at
420
nm
monochromatic
light,
which
about
18.8-fold
pristine
ZIS.
This
work
affords
useful
inspiration
on
consciously
modulating
atomic-level
interface
control
to
signally
promote
performance.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(22), P. 12554 - 12559
Published: March 15, 2021
Abstract
Electrochemical
reduction
of
CO
2
(CO
RR)
into
valuable
hydrocarbons
is
appealing
in
alleviating
the
excessive
level.
We
present
very
first
utilization
metallic
bismuth–tin
(Bi‐Sn)
aerogel
for
RR
with
selective
HCOOH
production.
A
non‐precious
bimetallic
Bi‐Sn
readily
prepared
at
ambient
temperature,
which
exhibits
3D
morphology
interconnected
channels,
abundant
interfaces
and
a
hydrophilic
surface.
Superior
to
Bi
Sn,
exposes
more
active
sites
it
has
favorable
mass
transfer
properties,
endow
high
FE
93.9
%.
Moreover,
achieves
ca.
90
%
that
was
maintained
10
h
flow
battery.
In
situ
ATR‐FTIR
measurements
confirmed
formation
*HCOO
rate‐determining
step
toward
formic
acid
generation.
DFT
demonstrated
coexistence
Sn
optimized
energy
barrier
production
HCOOH,
thereby
improving
catalytic
activity.
ACS Nano,
Journal Year:
2022,
Volume and Issue:
16(12), P. 19959 - 19979
Published: Dec. 15, 2022
To
utilize
intermittent
renewable
energy
as
well
achieve
the
goals
of
peak
carbon
dioxide
emissions
and
neutrality,
various
electrocatalytic
devices
have
been
developed.
However,
reactions,
e.g.,
hydrogen
evolution
reaction/oxygen
reaction
in
overall
water
splitting,
polysulfide
conversion
lithium–sulfur
batteries,
formation/decomposition
lithium
peroxide
lithium–oxygen
nitrate
reduction
to
degrade
sewage,
suffer
from
sluggish
kinetics
caused
by
multielectron
transfer
processes.
Owing
merits
accelerated
charge
transport,
optimized
adsorption/desorption
intermediates,
raised
conductivity,
regulation
microenvironment,
ease
combine
with
geometric
characteristics,
built-in
electric
field
(BIEF)
is
expected
overcome
above
problems.
Here,
we
give
a
Review
about
very
recent
progress
BIEF
for
efficient
electrocatalysis.
First,
construction
strategies
characterization
methods
(qualitative
quantitative
analysis)
are
summarized.
Then,
up-to-date
overviews
engineering
electrocatalysis,
attention
on
electron
structure
optimization
microenvironment
modulation,
analyzed
discussed
detail.
In
end,
challenges
perspectives
proposed.
This
gives
deep
understanding
design
electrocatalysts
next-generation
storage
devices.
Science Advances,
Journal Year:
2022,
Volume and Issue:
8(9)
Published: March 2, 2022
Realizing
stable
and
efficient
overall
water
splitting
is
highly
desirable
for
sustainable
hydrogen
production
yet
challenging
because
of
the
rapid
deactivation
electrocatalysts
during
acidic
oxygen
evolution
process.
Here,
we
report
that
single-site
Pt-doped
RuO
2
hollow
nanospheres
(SS
Pt-RuO
HNSs)
with
interstitial
C
can
serve
as
active
in
0.5
M
H
SO
4
.
The
performance
toward
have
surpassed
most
reported
catalysts.
Impressively,
SS
HNSs
exhibit
promising
stability
polymer
electrolyte
membrane
electrolyzer
at
100
mA
cm
−2
continuous
operation
hours.
Detailed
experiments
reveal
elongate
Ru-O
Pt-O
bonds,
presence
Pt
readily
vary
electronic
properties
improve
OER
activity
by
reducing
energy
barriers
enhancing
dissociation
*
O
species.
Energy & Environmental Science,
Journal Year:
2023,
Volume and Issue:
17(1), P. 49 - 113
Published: Nov. 7, 2023
This
perspective
highlights
recent
advancements
in
innovative
strategies
to
provide
valuable
insights
into
the
potential
for
energy-saving
hydrogen
production
through
water
electrolysis.
Advanced Energy Materials,
Journal Year:
2022,
Volume and Issue:
12(45)
Published: Sept. 30, 2022
Abstract
The
rational
design
and
development
of
highly
efficient
oxygen
evolution
reaction
(OER)
electrocatalysts
is
vital
for
the
application
renewable
energy
devices.
Recently,
strategy
defect
engineering
draws
much
attention
due
to
its
positive
effect
on
regulating
electronic
structure,
thus,
promoting
electrocatalytic
performance
various
materials.
In
this
review,
main
focus
cation
vacancy
defects
transition
metal‐based
electrocatalysts;
latest
progress
in
OER
summarized.
different
effects
are
well
discussed
together
with
mechanism,
mainly
including
improving
conductivity,
optimizing
adsorption
key
intermediates,
guiding
surface
reconstruction
form
active
species,
enhancing
long‐term
stability.
Then,
methods
construct
characterization
vacancies
systematically
introduced.
Finally,
remaining
challenges
future
prospects
further
proposed.
