Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(34)
Published: July 19, 2021
Abstract
Despite
their
safety,
nontoxicity,
and
cost‐effectiveness,
zinc
aqueous
batteries
still
suffer
from
limited
rechargeability
poor
cycle
life,
largely
due
to
spontaneous
surface
corrosion
formation
of
large
Zn
dendrites
by
irregular
uneven
plating
stripping.
In
this
work,
these
untoward
effects
are
minimized
covering
electrodes
with
ultrathin
layers
covalent
organic
frameworks,
COFs.
These
nanoporous
mechanically
flexible
films
form
self‐assembly—via
the
straightforward
scalable
dip‐coating
technique—and
permit
efficient
mass
charge
transport
while
suppressing
growth
dendrites.
The
demonstrated
have
excellent
capacity
retention
stable
polarization
voltage
for
over
420
h
cycling
at
1
mA
cm
−2
.
COF
essential
improvements
can
be
readily
deposited
areas
curvilinear
supports,
enabling,
example,
foldable
wire‐type
batteries.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(4), P. 2186 - 2243
Published: Jan. 1, 2021
The
limited
resources
and
uneven
distribution
of
lithium
stimulate
strong
motivation
to
develop
new
rechargeable
potassium-ion
batteries
that
use
alternative
charge
carriers.
Acta Physico-Chimica Sinica,
Journal Year:
2021,
Volume and Issue:
0(0), P. 2108017 - 0
Published: Jan. 1, 2021
Abstract:
Research
on
two-dimensional
(2D)
materials
has
been
explosively
increasing
in
last
seventeen
years
varying
subjects
including
condensed
matter
physics,
electronic
engineering,
science,
and
chemistry
since
the
mechanical
exfoliation
of
graphene
2004.
Starting
from
graphene,
2D
now
have
become
a
big
family
with
numerous
members
diverse
categories.
The
unique
structural
features
physicochemical
properties
make
them
one
class
most
appealing
candidates
for
wide
range
potential
applications.
In
particular,
we
seen
some
major
breakthroughs
made
field
five
not
only
developing
novel
synthetic
methods
exploring
new
structures/properties
but
also
identifying
innovative
applications
pushing
forward
commercialisation.
this
review,
provide
critical
summary
recent
progress
particular
focus
years.
After
brief
background
introduction,
first
discuss
materials,
exfoliation,
liquid
vapor
phase
deposition,
wet-chemical
synthesis
as
well
engineering
belonging
to
nanomaterials
(PEN).
We
then
introduce
superconducting/optical/magnetic
chirality
along
newly
emerging
magic
angle
superlattices.
Following
that,
promising
electronics,
optoelectronics,
catalysis,
energy
storage,
solar
cells,
biomedicine,
sensors,
environments,
etc.
are
described
sequentially.
Thereafter,
present
theoretic
calculations
simulations
materials.
Finally,
after
concluding
current
progress,
personal
discussions
existing
challenges
future
outlooks
rapidly
field.
Small,
Journal Year:
2020,
Volume and Issue:
16(24)
Published: May 17, 2020
Abstract
Covalent
organic
frameworks
(COFs),
connecting
different
units
into
one
system
through
covalent
bonds,
are
crystalline
porous
materials
with
2D
or
3D
networks.
Compared
conventional
such
as
inorganic
zeolite,
active
carbon,
and
metal‐organic
frameworks,
COFs
a
new
type
of
well‐designed
pore
structure,
high
surface
area,
outstanding
stability,
easy
functionalization
at
the
molecular
level,
which
have
attracted
extensive
attention
in
various
fields,
energy
storage,
gas
separation,
sensing,
photoluminescence,
proton
conduction,
magnetic
properties,
drug
delivery,
heterogeneous
catalysis.
Herein,
recent
advances
metal‐free
versatile
platform
for
catalysis
wide
range
chemical
reactions
presented
synthetic
strategy
promising
catalytic
applications
COF‐based
catalysts
(including
photocatalysis)
summarized.
According
to
types
reactions,
this
review
is
divided
following
five
parts
discussion:
achiral
catalysis,
chiral
conversion,
photocatalytic
conversion
water
splitting
reduction
carbon
dioxide),
pollutant
degradation.
Furthermore,
remaining
challenges
prospects
also
presented.
Advanced Energy Materials,
Journal Year:
2020,
Volume and Issue:
10(45)
Published: Oct. 16, 2020
Abstract
Rechargeable
aqueous
zinc‐ion
batteries
(AZIBs)
have
attracted
extensive
attention
and
are
considered
to
be
promising
energy
storage
devices,
owing
their
low
cost,
eco‐friendliness,
high
security.
However,
insufficient
density
has
become
the
bottleneck
for
practical
applications,
which
is
greatly
influenced
by
cathodes
makes
exploration
of
high‐performance
still
a
great
challenge.
This
review
underscores
recent
advances
in
rational
design
advanced
AZIBs.
The
starts
with
brief
summary
evaluation
cathode
material
systems,
as
well
introduction
proposed
mechanisms.
Then,
fundamental
problems
associated
ion
electron
transport
behaviors
inside
electrode
will
pointed
out
followed
potential
solutions,
aiming
reveal
correlation
between
architecture
efficient
kinetics
through
structural
engineering.
Afterward,
engineering
designing
cathodes,
including
interlayer
intercalation,
doping
effects,
defect
engineering,
surface
coatings,
composite
formation,
morphology
control,
summarized
discussed
from
view
experimental
theoretical
results.
Finally,
critical
research
challenges
future
perspectives
on
materials
developing
directions
AZIBs
also
given.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(49)
Published: Oct. 7, 2021
Lithium-sulfur
(Li-S)
batteries
are
held
great
promise
for
next-generation
high-energy-density
devices;
however,
polysulfide
shuttle
and
Li-dendrite
growth
severely
hinders
their
commercial
production.
Herein,
a
sulfonate-rich
COF
(SCOF-2)
is
designed,
synthesized,
used
to
modify
the
separator
of
Li-S
batteries,
providing
solution
above
challenges.
It
found
that
SCOF-2
features
stronger
electronegativity
larger
interlayer
spacing
than
none/monosulfonate
COFs,
which
can
facilitate
Li+
migration
alleviate
formation
Li-dendrites.
Density
functional
theory
(DFT)
calculations
in
situ
Raman
analysis
demonstrate
possesses
narrow
bandgap
strong
interaction
on
sulfur
species,
thereby
suppressing
self-discharge
behavior.
As
result,
modified
deliver
an
ultralow
attenuation
rate
0.047%
per
cycle
over
800
cycles
at
1
C,
excellent
anti-self-discharge
performance
by
low-capacity
6.0%
one
week.
Additionally,
even
with
high-sulfur-loading
cathode
(3.2-8.2
mgs
cm-2
)
lean
electrolyte
(5
µL
mgs-1
),
still
exhibit
≈80%
capacity
retention
100
cycles,
showing
potential
practical
application.
SusMat,
Journal Year:
2021,
Volume and Issue:
1(1), P. 66 - 87
Published: March 1, 2021
Abstract
The
efficient
electrocatalysis
plays
the
key
role
in
development
of
electrochemical
energy
conversion
technologies
to
alleviate
crisis.
Given
their
multiple
active
sites
and
large
specific
surface
areas
as
electrocatalysts,
metal‐organic
frameworks
(MOFs)
derivatives
have
attracted
considerable
interests
recent
years.
Specially,
exploring
roles
enhanced
MOFs
is
significant
for
understanding
developing
new
effective
electrocatalysts.
Recently,
vital
vacancies
has
been
proven
promote
electrocatalytic
processes
(such
H
2
or
O
evolution
reactions,
reduction
N
reactions).
In
order
in‐depth
effect
classification,
synthetic
strategy,
various
are
reviewed.
Also,
perspectives
on
challenges
opportunities
presented.
SusMat,
Journal Year:
2021,
Volume and Issue:
1(1), P. 38 - 50
Published: March 1, 2021
Abstract
Lithium
ion
battery
has
achieved
great
success
in
portable
electronics
and
even
recently
electronic
vehicles
since
its
commercialization
1990s.
However,
lithium‐ion
batteries
are
confronted
with
several
issues
terms
of
the
sustainable
development
such
as
high
price
raw
materials
products,
emerging
safety
accidents,
etc.
The
recent
progresses
herein
emphasized
on
lithium
for
energy
storage
to
clearly
understand
chemistry
materials.
Perspective
presents
novel
developed
aims
enhancing
electrochemical
performance
sustainability
systems.
First,
revolutionary
material
chemistries,
including
low‐cobalt
cathode,
organic
electrode,
aqueous
electrolyte,
discussed
.
Then,
characteristics
analyzed
strategies
enhance
subsequently
evaluated.
Battery
recycling
is
considered
key
factor
a
society
related
technologies
present
well.
Finally,
conclusion
outlook
drawn
shed
lights
further
batteries.
ACS Nano,
Journal Year:
2020,
Volume and Issue:
14(9), P. 12016 - 12026
Published: Aug. 24, 2020
Redox-active
organic
cathode
materials
have
drawn
growing
attention
because
of
the
broad
availability
raw
materials,
eco-friendliness,
scalable
production,
and
diverse
structural
flexibility.
However,
commonly
suffer
from
fragile
stability
in
solvents,
poor
electrochemical
charge/discharge
processes,
insufficient
electrical
conductivity.
To
address
these
issues,
using
Cu(II)
salt
benzenehexathiolate
(BHT)
as
precursors,
we
synthesized
a
robust
redox-active
2D
metal–organic
framework
(MOF),
[Cu3(C6S6)]n,
namely,
Cu-BHT.
The
Cu-BHT
MOFs
highly
conjugated
structure,
affording
high
electronic
conductivity
231
S
cm–1,
which
could
further
be
increased
upon
lithiation
lithium-ion
battery
(LIB)
applications.
A
reversible
four-electron
reaction
reveals
Li
storage
mechanism
for
theoretical
capacity
236
mAh
g–1.
as-prepared
delivers
an
excellent
175
g–1
with
ultralow
deterioration
(0.048%
per
cycle)
500
cycles
at
current
density
300
mA
Therefore,
believe
this
work
would
provide
practical
strategy
development
high-power
energy
materials.
Advanced Materials,
Journal Year:
2021,
Volume and Issue:
33(39)
Published: Aug. 8, 2021
Abstract
Covalent
organic
frameworks
(COFs)
are
potentially
promising
electrode
materials
for
electrochemical
charge
storage
applications
thanks
to
their
pre‐designable
reticular
chemistry
with
atomic
precision,
allowing
precise
control
of
pore
size,
redox‐active
functional
moieties,
and
stable
covalent
frameworks.
However,
studies
on
the
mechanistic
practical
aspects
zinc‐ion
behavior
still
limited.
In
this
study,
a
strategy
enhance
performance
COF
cathodes
in
batteries
(ZIBs)
by
introducing
quinone
group
into
1,4,5,8,9,12‐hexaazatriphenylene‐based
COFs
is
reported.
Electrochemical
characterization
demonstrates
that
introduction
groups
significantly
pushes
up
Zn
2+
capability
against
H
+
elevates
average
(dis‐)charge
potential
aqueous
ZIBs.
Computational
experimental
analysis
further
reveals
favorable
sites
host
/H
electrodes
root
cause
enhanced
performance.
This
work
molecular
engineering
structure
an
effective
approach
achieve
