Journal of Thermal Analysis and Calorimetry,
Journal Year:
2023,
Volume and Issue:
148(21), P. 11753 - 11763
Published: Sept. 7, 2023
Abstract
Advanced
energetic
metal–organic
frameworks
(MOFs)
can
expose
novel
characteristics.
Highly
crystalline
nickel
hydrazine
nitrate
(NHN)
MOF
of
50
nm
size
was
developed
via
wet
coordination.
NHN
experienced
superior
decomposition
enthalpy
3100
J
g
−1
at
222
°C
using
differential
scanning
calorimetry.
could
act
as
a
sensitizer
for
trinitrotoluene
(TNT)
and
boost
its
enthalpy,
detonation
velocity,
kinetics.
nanoparticles
were
effectively
integrated
into
TNT
matrix;
proper
particle
dispersion
verified
energy-dispersive
X-ray
analysis,
whereas
340
;
boosted
by
282%,
with
decrease
in
main
temperature
31
°C.
NHN/TNT
nanocomposite
revealed
activation
energy
−
23.5%
22%
Kissinger
KAS
models,
respectively.
The
synergistic
effect
on
ascribed
high
gaseous
products.
secure
catalytic
increase
velocity
11%;
this
to
the
release
active
hydrogen
that
support
CH-α
attack
exclusive
formation
nanocatalyst.
Journal of Materials Chemistry C,
Journal Year:
2023,
Volume and Issue:
11(26), P. 8903 - 8907
Published: Jan. 1, 2023
Herein,
we
report
two
copper-based
2D
hybrid
perovskites
(MBA)
2
CuCl
4
(1)
and
(BA)
(2).
Interestingly,
both
compounds
have
reversible
thermochromic
responses.
Frontiers in Chemistry,
Journal Year:
2022,
Volume and Issue:
10
Published: Oct. 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.
Crystal Growth & Design,
Journal Year:
2023,
Volume and Issue:
23(7), P. 4970 - 4978
Published: June 2, 2023
In
this
work,
a
combined
strategy
of
bridging
two
tetrazolo[1,5-b]pyridazine
rings
and
introducing
intramolecular
hydrogen
bonds
(N–H···O)
with
hydrazo
group
was
developed
to
construct
new
high-energy
heat-resistant
energetic
compound
named
6,6′-hydrazo-bis(8-amino-7-nitrotetrazolo[1,5-b]pyridazine)
(1).
Its
dehydrogenated
derivative
6,6′-azo-bis(8-amino-7-nitrotetrazolo[1,5-b]pyridazine)
(2),
which
had
fewer
(N–H···O),
also
synthesized
for
comparison.
Compounds
1
2
were
characterized
by
high-resolution
mass
spectrometry,
nuclear
magnetic
resonance,
single-crystal
X-ray
diffraction,
infrared
spectroscopy,
elemental
analysis.
Their
properties,
such
as
densities
(ρ:
1.87
g·cm–3
1,
1.77
2),
heat
formation
values
(ΔHf:
1079
kJ·mol–1
1235
detonation
velocities
(Dv:
9064
m·s–1
8429
pressures
(P:
35.2
GPa
27.8
decomposition
temperatures
(Td:
292
°C
260
impact
sensitivities
(IS:
16
J
4
friction
(FS:
>360
N
160
tested.
These
results
suggest
that
is
promising
thermally
stable
material.
Pure and Applied Chemistry,
Journal Year:
2024,
Volume and Issue:
96(1), P. 69 - 80
Published: Jan. 1, 2024
Abstract
A
novel
copper
iodide
hybrid
compound,
(DABCO-H)CuKI
3
,
featuring
a
perovskite
structure
is
here
reported.
Characterization
techniques,
including
single
crystal
X-ray
diffraction,
photoelectron
spectroscopy
(XPS),
and
photoluminescence
studies,
elucidate
the
structural
luminescent
properties.
The
compound
exhibits
blue
phosphorescence,
attributed
to
mixed
metal-to-ligand
halide-to-ligand
charge
transfer
transitions,
as
supported
by
density
functional
theory
(DFT)
calculations
XPS
valence
band
analysis.
Furthermore,
displays
remarkable
adsorption
capacity
towards
methylene
dye.
Kinetic
modelling
reveals
that
both
film
intra-particle
diffusion
processes
contribute
rate.
In-situ
assembly
of
three
molecular
perovskite
energetic
materials
(DAP-2,
DAP-4,
and
DAN-2)
with
ammonium
perchlorate
as
a
core-shell
eutectic
oxidizer,
the
performance
mechanism
HTPB
propellant
was
investigated.
This
comprehensive
study
examined
thermal
decomposition
behavior
combustion-agglomeration
characteristics
oxidizers
under
pressures
ranging
from
0.1
to
8.0
MPa.
Experimental
results
demonstrated
that
synthesized
exhibited
significant
redox
reactions
during
combustion
within
propellant.
The
were
accompanied
by
release
superoxide
ions,
which
notably
enhanced
energy
release.
structure
improved
interfacial
contact,
leading
increased
heat
mass
transfer
efficiency.
As
result,
shorter
times
burning
rates
observed,
DAP-4
demonstrating
best
overall
among
five
materials.
Additionally,
average
agglomerate
sizes
(D50)
for
RDX-,
HMX-,
DAP-2-,
DAP-4-,
DAN-2-based
propellants
near
surface
161.11
μm,
92.51
40.64
30.30
41.16
respectively.
agglomeration
degree
based
on
significantly
lower
than
RDX
HMX-based
propellants.
reduction
in
is
attributed
thin
molten
skeleton
layer
high-temperature
oxidizing
gases
produced
oxidizers,
effectively
suppressed
aluminum
particle
surface.
dual
ultimately
resulted
enhancement
performance.
Zeitschrift für Kristallographie - New Crystal Structures,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 6, 2025
Abstract
C
5
H
14
KN
O
9
,
orthorhombic,
Pbca
(no.
61),
a
=
10.4760(3)
Å,
b
14.0476(4)
c
17.3708(5)
V
2,556.33(13)
Å
3
Z
8,
T
100
K,
R
gt
(
F
)
0.0226,
wR
ref
2
0.0607.
