Zinc‐air
batteries
(ZABs)
are
promising
electrochemical
energy
storage
devices,
but
the
inherent
semi‐open
configuration
and
catalytically
dependent
working
principle
make
their
performance
vulnerable
to
temperature.
Herein,
a
tunable
multi‐site
electrocatalyst
is
manufactured
as
cathode
for
wide‐temperature
adaptive
aqueous
ZABs,
comprising
Cu–Co
dual
metal–nitrogen–carbon‐coupled
with
metal
nanoparticles
(CuCo‐NC/NPs).
The
multi‐components
synergistically
optimize
electronic
structure
of
active
sites
in
CuCo‐NC/NPs,
which
endows
them
low
apparent
activation
(
E
)
high
activity
oxygen
reduction
reaction.
Moreover,
CuCo‐NC/NPs‐based
ZABs
demonstrate
satisfactory
stability
over
540
h,
specific
capacity
806
mAh
g
zn
−1
at
10
mA
cm
−2
room
temperature,
outperforming
that
Pt/C
many
recent
report
catalysts
based
ZABs.
Even
−30
60
°C,
assembled
can
deliver
more
than
88.1%
95.5%
its
room‐temperature
capacity,
well
superior
cycling
stability,
paving
way
practical
applications
under
extreme
conditions.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Окт. 3, 2023
Elucidating
the
synergistic
catalytic
mechanism
between
multiple
active
centers
is
of
great
significance
for
heterogeneous
catalysis;
however,
finding
corresponding
experimental
evidence
remains
challenging
owing
to
complexity
catalyst
structures
and
interface
environment.
Here
we
construct
an
asymmetric
TeN2-CuN3
double-atomic
site
catalyst,
which
analyzed
via
full-range
synchrotron
pair
distribution
function.
In
electrochemical
CO2
reduction,
features
a
with
activating
two
key
molecules:
operando
spectroscopy
confirms
that
Te
center
activates
CO2,
Cu
helps
dissociate
H2O.
The
theoretical
results
reveal
could
cooperatively
lower
energy
barriers
rate-determining
step,
promoting
proton
transfer
kinetics.
Therefore,
displays
broad
potential
range
high
CO
selectivity,
improved
kinetics
good
stability.
This
work
presents
synthesis
characterization
strategies
catalysts,
experimentally
unveils
underpinning
catalysis.
Energy & Fuels,
Год журнала:
2023,
Номер
37(3), С. 1545 - 1576
Опубликована: Янв. 13, 2023
Decarbonizing
the
chemical
industry
and
achieving
carbon-neutral
energy
is
paramount
to
sustainability
of
human
species
on
earth.
Electrocatalysis
using
transition
metal-based
catalysts
plays
a
major
role
in
this
task.
In
work,
we
present
an
overview
application
electrocatalytic
reactions.
We
particularly
focus
advancement
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
reduction
(ORR),
nitrogen
(NRR),
carbon
dioxide
(CO2RR)
metal
electrocatalysts.
also
aim
highlight
achievements
these
fields
limitations
their
large-scale
industrial
applications.
Different
are
discussed,
from
3-dimensional
1-
0-dimensional
structures.
place
special
attention
emerging
such
as
2-dimensional
carbide
nitride
MXenes
single
atom
catalysts.
Lastly,
offer
recommendation
for
future
research
directions
aforementioned
electrocatalysis
This
work
will
ultimately
help
both
existing
incoming
researchers
providing
state-of-the-art
findings
identifying
challenges
that
must
be
addressed
order
attain
energy.
Abstract
Since
the
discovery
of
graphene,
research
on
family
2D
materials
has
been
a
thriving
field.
Metal
phosphorous
chalcogenides
(MPX
3
)
have
attracted
renewed
attention
due
to
their
distinctive
physical
and
chemical
properties.
The
advantages
MPX
,
such
as
tunable
layered
structures,
unique
electronic
properties,
thermodynamically
appropriate
band
alignments
abundant
catalytic
active
sites
surface,
make
material
great
potential
in
electrocatalysis.
In
this
review,
applications
electrocatalysts
recent
years,
including
hydrogen
evolution
reaction,
oxygen
reduction
are
summarized.
Structural
regulation,
doping
multi‐material
composite
that
often
effective
practical
methods
further
optimize
properties
these
materials,
introduced.
Finally,
challenges
opportunities
for
electrocatalytic
discussed.
This
report
aims
advance
future
efforts
develop
related
ACS Catalysis,
Год журнала:
2023,
Номер
13(13), С. 9222 - 9233
Опубликована: Июнь 26, 2023
Cu
is
considered
as
the
most
promising
catalyst
for
electrochemical
carbon
dioxide
reduction
reaction
(CO2RR)
to
produce
C2+
hydrocarbons,
but
achieving
high
product
selectivity
and
efficiency
with
long-term
stability
remains
one
of
great
challenges.
Herein,
we
report
a
strategy
realize
CO2RR
allowing
stable
catalytic
properties
by
utilizing
benefits
oxygen-plasma-assisted
nitrogen
doping
on
CuO.
It
exhibited
that
defects
such
oxygen
vacancies
grain
boundaries
suitable
are
generated
N2
plasma
radicals
Also,
oxidation
state
maintained
without
O2
plasma.
Indeed,
ON–CuO
synthesized
through
demonstrated
enable
77%
(including
C2H4
56%)
current
density
−34.6
mA/cm2
at
−1.1
V
vs
RHE,
well
22
h
performance
degradation.
High
performances
ascribed
increased
CO
binding
energy
sites
in
N-doped
Furthermore,
an
situ
X-ray
absorption
near-edge
structure
analysis
reveals
favorable
C–C
coupling
leading
products.
Advanced Functional Materials,
Год журнала:
2023,
Номер
33(13)
Опубликована: Фев. 7, 2023
Abstract
The
precise
coordination
environment
manipulation
and
interfacial
electron
redistribution
are
significant
strategies
for
the
modulation
of
electronic
configuration
intermediates
adsorption
behaviors,
while
complex
synergistic
effect
is
yet
to
materialize
due
lack
catalyst
platform.
Herein,
an
atomic‐scale
platform
containing
single
Cu
site
with
tunable
(Cu‐N
4
or
Cu‐S
1
N
3
)
easy
decoration
cluster
(Cu
x
electrochemical
O
2
reduction
reaction
(ORR)
reported.
Theoretical
analysis
shows
that
charge
up‐shifting
d
‐band
center
induced
by
asymmetrical
effectively
strength
*OOH
adsorption.
in
enables
/Cu
a
superior
ORR
performance
compared
samples
without
S
atom
and/or
.
Moreover,
behavior
tuned
interactions
correlated
linearly
catalytic
potential,
e.g.,
half‐wave
potential
kinetic,
Tafel
slope
ORR,
indicating
high
applicability
intermediate
as
indicators
performance.
This
study
provides
comprehensive
strategy
can
be
extended
facilitate
other
proton‐coupled
transfer
reactions.
