Chemical Society Reviews,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Advanced Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 22, 2024
Abstract
Reconstruction
of
catalysts
is
now
well
recognized
as
a
common
phenomenon
in
electrocatalysis.
As
the
reconstructed
structure
may
promote
or
hamper
electrochemical
performance,
how
to
achieve
designed
active
surface
for
highly
enhanced
catalytic
activity
through
reconstruction
needs
be
carefully
investigated.
In
this
review,
genesis
and
effects
various
processes,
such
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
carbon
dioxide
reduction
(CO
2
RR),
nitrate
(NO
3
RR)
are
first
described.
Then,
strategies
optimizing
reconstruction,
valence
states
control,
phase
retention,
engineering,
poisoning
prevention
comprehensively
discussed.
Finally,
general
rules
optimization
summarized
give
perspectives
future
study.
It
believed
that
review
shall
provide
deep
insights
into
electrocatalytic
mechanisms
guide
design
pre‐catalysts
with
improved
activity.
ACS Energy Letters,
Год журнала:
2024,
Номер
9(9), С. 4414 - 4440
Опубликована: Авг. 17, 2024
Electrochemical
reactions,
including
water
splitting,
oxygen
reduction,
hydrogen
oxidation,
carbon
dioxide
nitrogen
oxide
etc.,
are
critical
for
sustainable
energy
conversion
and
storage.
Achieving
high
efficiency
in
these
reactions
requires
catalysts
with
superior
activity,
selectivity,
stability,
often
realized
through
nanostructured
metal
catalysts.
However,
practical
challenges
such
as
low
selectivity
catalytic
degradation
persist.
In
situ
operando
characterization
techniques
offer
real-time
insights
into
catalyst
behavior
under
reaction
conditions,
enabling
a
deeper
understanding
of
structure–performance
relationships
and,
therefore,
guiding
the
design
optimization
electro-catalysts.
This
review
discusses
common
situ/operando
techniques,
highlights
their
applications
model
catalysts,
single-atom
single-crystal
further
explores
combinational
analysis
to
study
complex
nanocatalysts.
Finally,
we
provide
suggestions
perspectives
on
development
advance
field
electrochemical
catalysis.
Journal of Materials Chemistry A,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
The
degree
of
surface
reconstruction
reaction
sulfide
catalyst
is
controlled,
20
s-NMSO
could
reach
a
current
1
A
cm
−2
at
an
ultra-low
overpotential
231
mV,
and
the
voltage
only
increased
by
0.06%
after
6
days
constant
testing.
Water
splitting
for
hydrogen
production
is
limited
by
high
cell
voltage
and
low
energy
conversion
efficiencies
due
to
the
slow
kinetic
process
of
oxygen
evolution
reaction
(OER).
Here,
an
electrolytic
system
constructed
in
which
cathode
anode
co-release
H
Advanced Energy Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 4, 2024
Abstract
Heterostructured
interfaces
are
crucial
to
electrocatalysts
for
water
splitting.
Herein,
coral‐like
multiheterostructured
Ni
x
B/Mo
0.8
B
3
(NMB)
nanorods
encapsulated
by
a
boron‐rich
amorphous
layer
prepared
Density‐functional
theory
(DFT)
calculations
indicate
that
the
NMB
interface
adjusts
d
‐band
center
and
electronic
structure
of
molybdenum
sites.
Owing
strong
coupling
between
Ni,
Mo,
at
heterojunction,
large
number
exposed
catalytic
active
sites,
as
well
special
hydrophilic
characteristics
endowed
surrounding
layer,
catalyst
exhibits
remarkable
universal‐pH
hydrogen
evolution
reaction
(HER)
activity
with
low
overpotentials
(
η
)
15,
26,
83
mV
deliver
10
mA
cm
−2
in
basic,
acid,
neutral
media,
respectively,
outstanding
oxygen
(OER)
basic
medium
500
170
420
mV,
respectively.
The
unique
self‐supporting
3D
hierarchical
interconnected
facilitates
mass
transport
thus
leading
high
mechanical
stability
450
200
h
HER
OER
≈1000
.
More
importantly,
excellent
performance
toward
overall‐water
electrolysis
bifunctional
ultralow
cell
voltages
1.45/1.56/1.85
V
@
10/100/1000
,
demonstrating
potential
industrial
splitting
applications.
