Abstract
Chromic
materials
with
multi‐stimuli
responses
have
received
tremendous
attention
from
industry
and
academia
for
their
potential
applications
in
smart
windows,
data
storage,
military
camouflage,
molecular
switches,
modulators,
etc.
To
develop
multi‐stimuli‐responsive
color‐changing
high
sensitivity
stability,
a
polyoxometalate‐based
copper‐viologen
framework,
formulated
as
Cu
2
(H
O)
(L)
[PW
12
O
40
][OH
−
]·2H
(
HNU‐97,
H
L
2+
=
1,1′‐(1,4‐phenylenebis(methylene))bis(4‐carboxypyridinium)),
was
prepared
by
mild
one‐step
self‐assembly
strategy.
Structural
analysis
shows
that
HNU‐97
presents
supramolecular
structure
formed
one‐dimensional
framework
polyoxometalates
through
rich
hydrogen
bonds,
anion‐π
interactions,
Discoloration
studies
show
exhibits
reversible
rapid
response
characteristics
to
various
external
stimuli,
such
10
s
UV
radiation,
5
min
heating,
ammonium/amine
vapors.
This
mechanism
reveals
different
excitation
sources
lead
preferential
transfer
directions
of
electrons,
resulting
discoloration
phenomena.
construct
stimuli‐chromic
good
mechanical
properties,
we
successfully
introduced
into
the
poly(vinyl
alcohol)
(PVA)/glycerol
(Gly)
hydrogel
obtain
composite
HNU‐97@PVA/Gly
.
Remarkably,
combines
merits
each
component
can
achieve
significant
behavior
under
both
irradiation
ammonia
atmosphere.
work
will
provide
an
idea
construction
multiple
stimuli‐responsive
materials.
Inorganic Chemistry,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Aug. 30, 2024
In
order
to
develop
efficient
catalysts
for
the
selective
oxidation
of
sulfides,
in
this
work,
two
polyoxovanadate-based
inorganic-organic
hybrids,
[Co(H
Polyoxometalates,
Journal Year:
2024,
Volume and Issue:
3(4), P. 9140071 - 9140071
Published: June 17, 2024
The
reduced
phosphomolybdate
{P4Mo6X31}n-
(X
=
O
or
OH)
({P4Mo6})
is
an
important
member
of
polyoxometalates
(POMs)
with
fully
Mo
atoms,
multiple
oxygen
coordinate
sites,
excellent
optical
response
and
electrochemical
properties
which
have
attracted
the
extensive
interests
researchers.
In
past
few
decades,
development
{P4Mo6}-based
POMs
has
been
relatively
slow
compared
classical
most
studies
mainly
focus
on
synthesis
novel
structures,
some
property
in
fluorescent
properties,
photocatalytic
degradation
organic
dye
electrocatalytic
reduction
hydrogen
peroxide.
Recently,
received
increasing
interest
due
to
their
unique
structure
advantages
potential
applications
photocatalysis,
electrocatalysis,
sensors,
proton
conduction.
This
review
summarizes
process
nearly
ten
years,
involving
synthesis,
diverse
fields
as
well
nanocomposites
precursors
applications.
However,
there
are
still
challenges
such
improving
scalability
intensively
studying
relationship
between
structures
performances.
Future
research
will
explore
more
energy
storage
conversion
evolution
reaction
(HER),
(OER),
battery
materials.
be
helpful
for
researchers
gain
a
rapid
understanding
this
area
value
future
POMs.
Abstract
Chromic
materials
with
multi‐stimuli
responses
have
received
tremendous
attention
from
industry
and
academia
for
their
potential
applications
in
smart
windows,
data
storage,
military
camouflage,
molecular
switches,
modulators,
etc.
To
develop
multi‐stimuli‐responsive
color‐changing
high
sensitivity
stability,
a
polyoxometalate‐based
copper‐viologen
framework,
formulated
as
Cu
2
(H
O)
(L)
[PW
12
O
40
][OH
−
]·2H
(
HNU‐97,
H
L
2+
=
1,1′‐(1,4‐phenylenebis(methylene))bis(4‐carboxypyridinium)),
was
prepared
by
mild
one‐step
self‐assembly
strategy.
Structural
analysis
shows
that
HNU‐97
presents
supramolecular
structure
formed
one‐dimensional
framework
polyoxometalates
through
rich
hydrogen
bonds,
anion‐π
interactions,
Discoloration
studies
show
exhibits
reversible
rapid
response
characteristics
to
various
external
stimuli,
such
10
s
UV
radiation,
5
min
heating,
ammonium/amine
vapors.
This
mechanism
reveals
different
excitation
sources
lead
preferential
transfer
directions
of
electrons,
resulting
discoloration
phenomena.
construct
stimuli‐chromic
good
mechanical
properties,
we
successfully
introduced
into
the
poly(vinyl
alcohol)
(PVA)/glycerol
(Gly)
hydrogel
obtain
composite
HNU‐97@PVA/Gly
.
Remarkably,
combines
merits
each
component
can
achieve
significant
behavior
under
both
irradiation
ammonia
atmosphere.
work
will
provide
an
idea
construction
multiple
stimuli‐responsive
materials.