Frontiers in Chemistry,
Год журнала:
2022,
Номер
10
Опубликована: Окт. 13, 2022
Energetic
Metal
Organic
Frameworks
(EMOFs)
have
been
a
hotspot
of
research
on
solid
propellants
in
recent
years.
In
this
paper,
the
application
EMOFs-based
burning
rate
catalysts
was
reviewed
and
development
trend
these
explored.
The
analyzed
included
monometallic
organic
frameworks-based
energetic
catalysts,
bimetallic
multifunctional
carbon-supported
EMOFs
that
can
be
used
conjunction
with
EMOFs.
review
suggest
relatively
simple
catalytic
effects,
adding
metal
salts
improve
their
effect.
Bimetallic
excellent
performance
potential
for
broad
application.
investigation
is
still
at
preliminary
stage,
but
preparation
become
focus
catalyst
field.
compounded
should
promoted.
Finally,
environmental
protection,
high
energy
low
sensitivity,
nanometerization,
compounding
solvent-free
are
proposed
as
key
directions
future
research.
This
study
aims
to
provide
reference
propellants.
Abstract
Metal‐halide
perovskites
have
emerged
as
versatile
materials
for
various
electronic
and
optoelectronic
devices
such
diodes,
solar
cells,
photodetectors,
sensors
due
to
their
interesting
properties
of
high
absorption
coefficient
in
the
visible
regime,
tunable
bandgap,
power
conversion
efficiency.
Recently,
metal‐free
organic
also
a
particular
class
piezoelectric
applications.
This
broadens
chemical
variety
perovskite
structures
with
good
mechanical
adaptability,
light‐weight,
low‐cost
processability.
Despite
these
achievements,
fundamental
understanding
underlying
phenomenon
piezoelectricity
is
still
lacking.
Therefore,
this
perspective
emphasizes
overview
metal‐halide,
perovskites,
recent
progress
which
may
encourage
material
designs
enhance
applicability
towards
practical
Finally,
challenges
outlooks
are
highlighted
future
developments.
Nature Communications,
Год журнала:
2023,
Номер
14(1)
Опубликована: Ноя. 27, 2023
A
primary
explosive
is
an
ideal
chemical
substance
for
performing
ignition
in
military
and
commercial
applications.
For
over
150
years,
nearly
all
of
the
developed
explosives
have
suffered
from
various
issues,
such
as
troublesome
syntheses,
high
toxicity,
poor
stability
or/and
weak
performance.
Now
we
report
interesting
example
a
with
double
perovskite
framework,
{(C6H14N2)2[Na(NH4)(IO4)6]}n
(DPPE-1),
which
was
synthesized
using
simple
green
one-pot
method
aqueous
solution
at
room
temperature.
DPPE-1
free
heavy
metals,
toxic
organic
components,
doesn't
involve
any
precursors.
It
exhibits
good
towards
air,
moisture,
sunlight,
heat
has
acceptable
mechanical
sensitivities.
affords
performance
on
par
most
powerful
reported
to
date.
promises
meet
challenges
existing
current
explosives,
this
work
could
trigger
more
extensive
applications
perovskite.
Energetic Materials Frontiers,
Год журнала:
2020,
Номер
1(3-4), С. 123 - 135
Опубликована: Дек. 1, 2020
Molecular
perovskite
energetic
crystals,
as
an
emerging
family
of
promising
practicable
materials,
have
attracted
increasing
attentions
in
the
past
few
years.
Different
from
mainstream
strategies
focusing
on
intra-molecular
designs
and
modifications
fused-ring
molecules/ions,
molecular
perovskites
rely
self-assembly
diverse
components
into
specified
ternary
crystal
structures,
hence
generally
could
be
prepared
via
easy
scale-up
process
at
a
low
cost.
As
kind
salts,
they
some
unique
advantages
energetic-material
terms
optimizing
oxygen
balance,
pack
efficiency
(and
density),
decreasing
hygroscopicity,
achieve
improved
detonation
performances
meanwhile
overcome
technical
weaknesses
traditional
binary
salts.
In
this
review,
we
summarize
current
findings
understandings
provide
outlook
for
new
opportunities
brought
by
material
towards
advanced
multi-component
crystals.
Materials & Design,
Год журнала:
2020,
Номер
199, С. 109426 - 109426
Опубликована: Дек. 31, 2020
In
this
paper,
we
studied
the
effect
of
M-doped
graphitic
carbon
nitride
(M-g-C3N4,
M
=
Fe,
Nd,
Ce,
Zr,
U)
as
a
catalyst
for
thermal
decomposition
ammonium
perchlorate-based
molecular
perovskite
DAP-4.
DAP-4
was
synthesized
by
assembly
strategy.
G-C3N4
and
M-g-C3N4
composite
samples
were
prepared
pyrolytic
co-sintering
methods.
X-ray
diffraction,
Fourier
transform
infrared
spectroscopy,
scanning
electron
microscopy-energy
dispersion
spectrometry,
photoelectron
spectroscopy
used
to
characterize
morphology,
structure,
element
distribution,
chemical
states
catalysts.
Differential
calorimetry
elevate
catalytic
g-C3N4
on
The
results
showed
that
have
activity
Among
tested
catalysts,
Fe-g-C3N4
had
best
DAP-4,
well
advantages
over
pure
other
Especially,
reduced
peak
temperature
75.3
°C,
increased
heat
release
464
J
g−1,
decreased
activation
energy
55.5
kJ
mol−1.
Moreover,
possible
mechanism
is
proposed.
This
work
may
offer
new
way
promote
application
in
field
solid
rocket
propellants.
ACS Applied Materials & Interfaces,
Год журнала:
2021,
Номер
13(24), С. 28390 - 28397
Опубликована: Июнь 9, 2021
The
development
of
energetic
materials
with
high
energy
and
low
sensitivity
has
attracted
immense
interests
due
to
their
widespread
applications
in
aerospace
technology
national
defense.
In
this
work,
a
promising
self-assembly
strategy
was
developed
prepare
three
high-energy
(1–3)
through
the
introduction
oxidant
molecules
into
crystal
voids
parent
materials.
structures
these
new
were
comprehensively
examined
by
infrared
spectroscopy,
nuclear
magnetic
resonance
(NMR)
single-crystal
X-ray
diffraction.
materials,
unique
layer
hcb,
sql,
interrupted
sql
topologies
observed,
which
formed
fused-ring-based
components.
Windows
hexagonal,
square,
rectangular
observed
within
structures,
occupied
H2O2,
NO3–,
ClO4–,
respectively.
Oxidant
interacted
via
hydrogen
bonds
form
Moreover,
property
estimated
computing
methods.
calculation
results
revealed
that
exhibit
excellent
properties.
highest
performance
for
compound
3.
detonation
velocity,
pressure,
specific
impulse
values
up
9339
m·s–1,
42.5
GPa,
308
s,
respectively,
greater
than
those
HMX.
Furthermore,
exhibited
good
sensitivity,
closely
related
structures.
indicated
should
be
method
novel
Inorganic Chemistry,
Год журнала:
2022,
Номер
61(9), С. 4143 - 4149
Опубликована: Фев. 22, 2022
In
recent
years,
molecular
perovskite
energetic
materials
have
attracted
more
attention
because
of
their
simple
synthesis
processes,
high
thermal
stabilities,
excellent
performances,
and
great
significance
as
a
design
platform
for
materials.
To
explore
the
possibility
application
in
heat-resistant
explosives,
four
silver(I)-based
compounds,
(H2A)[Ag(ClO4)3],
where
H2A
=
piperazine-1,4-diium
(H2pz2+)
PAP-5,
1-methyl-piperazine-1,4-diium
(H2mpz2+)
PAP-M5,
homopiperazine-1,4-diium
(H2hpz2+)
PAP-H5,
1,4-diazabicyclo[2.2.2]octane-1,4-diium
(H2dabco2+)
DAP-5,
were
synthesized
by
one-pot
self-assembly
strategy
structurally
characterized.
The
single-crystal
structures
indicated
that
DAP-5
possess
cubic
while
PAP-H5
possesses
hexagonal
structure.
Differential
analyses
showed
onset
decomposition
temperatures
are
>308.3
°C.
For
PAP-5
they
not
only
exceptional
calculated
detonation
parameters
(D
values
8.961
8.534
km
s-1
P
42.4
37.9
GPa,
respectively)
but
also
proper
mechanical
sensitivity
(impact
sensitivities
≤10
J
3
friction
≤5N
both
DAP-5)
thus
interest
potential
primary
explosive
components.
