ACS Nano,
Год журнала:
2021,
Номер
15(12), С. 18931 - 18973
Опубликована: Дек. 3, 2021
Potassium
ion
energy
storage
devices
are
competitive
candidates
for
grid-scale
applications
owing
to
the
abundancy
and
cost-effectiveness
of
potassium
(K)
resources,
low
standard
redox
potential
K/K+,
high
ionic
conductivity
in
K-salt-containing
electrolytes.
However,
sluggish
reaction
dynamics
poor
structural
instability
battery-type
anodes
caused
by
insertion/extraction
large
K+
ions
inhibit
full
K
systems.
Extensive
efforts
have
been
devoted
exploration
promising
anode
materials.
This
Review
begins
with
a
brief
introduction
operation
principles
performance
indicators
typical
systems
significant
advances
different
types
materials,
including
intercalation-,
mixed
surface-capacitive-/intercalation-,
conversion-,
alloy-,
conversion-/alloy-,
organic-type
Subsequently,
host-guest
relationships
discussed
correlation
electrochemical
properties,
underlying
mechanisms,
critical
issues
faced
each
type
material
concerning
their
implementation
Several
optimization
strategies
improve
highlighted.
Finally,
perspectives
on
future
trends
provided,
which
aimed
at
accelerating
development
ACS Energy Letters,
Год журнала:
2021,
Номер
6(11), С. 4127 - 4154
Опубликована: Ноя. 1, 2021
Sodium-
and
potassium-ion
(Na-/K-ion)
hybrid
capacitors
are
promising
electrochemical
energy
storage
systems
that
more
cost-effective
than
corresponding
lithium-based
alternatives.
Their
configuration
integrates
a
battery-type
anode
capacitor-type
cathode
affords
high
density,
power
good
cycling
stability.
However,
the
primary
issue
encountered
in
Na-/K-ion
is
lack
of
reliable
anodes
because
sluggish
reaction
kinetics
large
Na-/K-ions.
In
recent
years,
significant
advancements
have
been
achieved
carbonaceous
their
feasibility,
natural
abundance,
low
cost,
non-toxicity.
This
review
encompasses
fundamental
principles
provides
insights
into
intimate
structure–performance
relationship
anodes.
The
existing
challenges
alternative
strategies
for
improving
performance
emphasized.
Finally,
future
prospects
possible
directions
further
presented.
Advanced Functional Materials,
Год журнала:
2021,
Номер
32(14)
Опубликована: Дек. 17, 2021
Abstract
Metal
Ru
and
vacancy
engineering
play
an
important
role
in
oxygen
evolution
reaction
(OER)
hydrogen
(HER).
However,
there
are
few
reports
targeted
on
electrocatalysts
by
simultaneously
employing
these
two
strategies.
Herein,
theoretical
calculation
firstly
predicts
that
V
S
can
regulate
the
adsorption
energy
of
OER/HER
intermediates
for
NiCo
2
4
electrocatalysts.
Then,
a
facile
solvothermal‐photochemical
strategy
is
utilized
to
synthesis
series
samples:
through
filling
solvothermal‐created
4–x
with
single
atoms
(Ru‐NiCo
)
under
ultraviolet
irradiation
as
OER
catalysts.
Besides,
nanoclusters
introduced
into
without
HER.
As
result,
exchange
current
density
prominently
boosted
after
decoration
atom,
which
possesses
eminently
low
overpotential
190
mV@50
mA
cm
−2
,
while
Ru‐NiCo
shows
superior
HER
performance
(32
mV@10
compared
surpassing
most
reported
electrocatalytic
materials.
Moreover,
//Ru‐NiCo
exhibits
remarkable
stability
catalytic
overall
water
splitting,
cell
voltage
value
1.46
at
10
1.0
m
KOH.
Bader
charge
analysis
unravels
“restricted‐delocalized‐restricted”
phenomenon
between
electrons
promote
electron
interactions,
turn
improves
electrochemical
performance.
JACS Au,
Год журнала:
2023,
Номер
3(8), С. 2107 - 2116
Опубликована: Июль 25, 2023
Zn-based
aqueous
batteries
(ZABs)
hold
great
promise
for
large-scale
energy
storage
applications
due
to
the
merits
of
intrinsic
safety
and
low
cost.
Nevertheless,
thorny
issues
metallic
Zn
anodes,
including
dendrite
growth
parasitic
side
reactions,
have
severely
limited
application
ZABs.
Despite
encouraging
improvements
stabilizing
anodes
through
surface
modification,
electrolyte
optimization,
structural
design,
fundamentally
addressing
inherent
thermodynamics
kinetics
obstacles
remains
crucial
in
realizing
reliable
ZABs
with
ultrahigh
efficiency,
capacity,
cyclability.
The
target
this
perspective
is
elucidate
prominent
status
metal
anode
electrochemistry
first
from
zincophilicity
zincophobicity.
Recent
progress
critically
appraised
key
issues,
special
emphasis
on
trade-off
between
zincophilic
zincophobic
electrochemistry.
Challenges
prospects
further
exploration
a
are
presented,
which
expected
boost
in-depth
research
practical
advanced
ACS Applied Nano Materials,
Год журнала:
2023,
Номер
6(3), С. 1631 - 1647
Опубликована: Янв. 31, 2023
Increasing
energy
demand
to
find
everlasting
and
eco-friendly
resources
is
now
mainly
dependent
on
green
hydrogen
production
technology.
Water
electrolysis
has
been
regarded
as
a
clean
route
for
H2
with
zero
carbon
emission,
but
different
bottlenecks
in
the
development
of
electrodes
impeded
its
realization.
Recently,
transition
metal
oxides
(TMO)
have
gained
tremendous
attention
suitable
cathodes
anodes
due
their
sustainability
under
harsh
conditions,
high
redox
features,
maximum
supportive
capability,
easy
modulation
valence
states,
enhanced
electrical
conductivity.
In
this
review,
we
highlighted
role
active
supported
sites
electrochemical
water
splitting.
We
proposed
perspectives
rational
design
TMO-based
electrode
materials,
i.e.,
electronic
state
modulation,
modification
surface
structure
control
aerophobicity
hydrophilicity,
acceleration
charge
mass
transport,
stability
electrocatalyst
environments.
systemically
discussed
insights
into
relationship
among
catalytic
activity,
certain
specified
challenges,
research
directions,
electrocatalysis
OER
HER.
