ACS Applied Nano Materials,
Год журнала:
2024,
Номер
7(8), С. 8914 - 8925
Опубликована: Апрель 10, 2024
The
nickel
phosphides
have
garnered
increasing
attention
as
an
excellent
catalytic
site
in
the
fields
of
electrocatalysis
and
hydrotreating,
but
their
application
organic
synthesis
remains
infrequent.
In
this
study,
ammonium
phosphate
chloride
were
employed
doping
sources
for
first
time
to
synthesize
Ni-based
ZIF-8
precursor
via
host–guest
method.
Subsequently,
was
pyrolyzed
obtain
Ni2P
nanoparticles
(NPs)
supported
on
N,
P
co-doped
carbon.
composite
materials
exhibit
elevated
metal
loading
effective
dispersion
due
synergistic
combination
phosphorus
nickel.
Specifically,
compared
with
Ni-NC,
optimal
Ni2P-NCP-1
exhibits
enhanced
activity
α-alkylation
arylacetonitriles
alcohols
using
KOH
base.
It
shows
a
wide
broad
substrate
scope
at
140
°C
12
h
n-octane
hydrogen
borrowing
strategy.
Through
characterizations
mechanistic
studies,
it
has
been
discovered
that
introduction
source
not
only
provides
more
basic
sites
carbon
matrix
also
leads
formation
NPs,
which
facilitates
efficiency
by
modifying
electronic
structure
Ni.
Compared
metallic
Ni
species,
effect
between
acid-basic
significantly
influences
dehydrogenation
generate
Ni–H
species.
This
study
successfully
achieves
simultaneous
phosphating
both
support,
demonstrates
N2P-NCP-1
catalyst
significant
potential
heterogeneous
transformation
field.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Фев. 28, 2024
Abstract
Nowadays,
many
researchers
aim
to
fill
polymer
materials
with
inorganic
nanoparticles
enhance
the
properties
and
gain
merits
of
polymeric
host
matrix.
Sol–gel
synthesized
Co
3
O
4
are
subjected
different
doses
electron
beam
(10,
20,
30
kGy)
study
their
physiochemical
choose
optimized
our
Crosslinked
polyethylene
(XLPE)
has
been
filled
5
wt
%
un-irradiated
cobalt
oxide
using
melt
extruder
method.
The
structural,
optical,
magnetic,
electrical
XLPE/Co
nanocomposite
before
after
exposure
radiation
have
characterized.
crystallite
size
face-centered
cubic
spinel
confirmed
by
XRD
whereas
unique
truncated
octahedral
shape
obviously
appears
in
SEM
micrographs.
decreased
from
47.5
31.5
nm
upon
irradiation
at
a
dose
kGy,
significantly
18.5
filling
inside
XLPE
Related
oxidation
effect
beam,
2+
/Co
3+
ratio
on
surface
as
verified
XPS
technique.
This
consequently
caused
partial
elimination
oxygen
vacancies,
mainly
responsible
for
weak
ferromagnetic
behavior
its
nanoscale.
saturation
magnetization
depicted
VSM.
also
shown
but
coercive
field
(H
c
)
increased
112.57
175.72
G
matrix
135.18
irradiating
kGy.
ionic
conductivity
0.133
×
10
–7
2.198
–3
S/cm
while
slight
increase
is
observed
irradiation.
ACS Sustainable Chemistry & Engineering,
Год журнала:
2024,
Номер
12(16), С. 6376 - 6388
Опубликована: Апрель 6, 2024
The
engineering
of
polymorph
heterojunctions
is
an
essential
approach
for
improving
the
catalytic
kinetics
water
electrolysis.
Yet,
efficient
tailoring
tactics
with
component
regulation
and
optimization
in
microenvironment
are
highly
desired
but
a
huge
challenge.
Herein,
design
construction
kind
nickel
phosphide
heterojunction
(Ni2P/Ni3P)
by
situ
Cr-induced
structural
transition
method
presented,
which
needs
overpotentials
only
108
270
mV
to
reach
10
mA
cm–2
hydrogen
evolution
reactions
(HER)
oxygen
(OER),
respectively.
It
exhibits
superior
bifunctional
activity
overall
splitting,
reaches
current
density
at
cell
voltage
1.56
V.
above
9.1
times
higher
than
that
Pt/C@NF(−)//RuO2@NF(+)
pair
same
voltage.
induced
phase
beneficial
Cr–Ni2P/Ni3P@NF
strong
interfacial
coupling
more
active
sites
constructed
amorphous
region,
optimize
d-band
center
electrocatalyst
lead
charge
redistribution
interfaces
Ni2P/Ni3P,
regulating
adsorption
H*
OOH*
intermediation.
This
work
provides
inspiration
optimizing
through
metal-induced
metal
compound
electrocatalysts.
Abstract
Developing
inexpensive
and
efficient
catalysts
for
biomass
hydrogenation
or
hydrodeoxygenation
(HDO)
is
essential
energy
conversion.
Transition
metal
phosphides
(TMPs),
with
the
merits
of
abundant
active
sites,
unique
physicochemical
properties,
tunable
component
structures,
excellent
catalytic
activities,
are
recognized
as
promising
HDO
materials.
Nevertheless,
applications
TMPs
still
limited
by
various
complexities
inherent
performance
bottlenecks,
thus
their
future
development
utilization
remain
to
be
systematically
sorted
out
further
explored.
This
review
summarizes
current
popular
strategies
preparation
TMPs.
Subsequently,
based
on
structural
electronic
properties
TMPs,
activity
origins
in
elucidated.
Additionally,
application
catalysis,
well
highly
targeted
multiscale
enhance
comprehensively
described.
Finally,
large‐scale
amplification
synthesis,
rational
construction
TMP‐based
in‐depth
study
mechanism
also
mentioned
challenges
directions
this
research
field.
Expectedly,
can
provide
professional
guidance
design
practical
catalysts.
Materials,
Год журнала:
2024,
Номер
17(1), С. 271 - 271
Опубликована: Янв. 4, 2024
The
next
step
in
nanotechnology
is
to
establish
a
methodology
assemble
new
functional
materials
based
on
the
knowledge
of
nanotechnology.
This
task
undertaken
by
nanoarchitectonics.
In
nanoarchitectonics,
we
architect
material
systems
from
nanounits
such
as
atoms,
molecules,
and
nanomaterials.
terms
hierarchy
structure
harmonization
function,
created
nanoarchitectonics
has
similar
characteristics
organization
biosystems.
Looking
at
actual
biofunctional
systems,
dynamic
properties
interfacial
environments
are
key.
other
words,
interfaces
important
for
production
bio-like
highly
systems.
this
review
paper,
will
be
discussed,
looking
recent
typical
examples.
particular,
basic
topics
“molecular
manipulation,
arrangement,
assembly”
“material
production”
discussed
first
two
sections.
Then,
following
section,
“fullerene
assembly:
zero-dimensional
unit
advanced
materials”,
discuss
how
various
structures
can
very
nanounit,
fullerene.
above
examples
demonstrate
versatile
possibilities
architectonics
interfaces.
last
these
tendencies
summarized,
future
directions
discussed.
ACS Applied Materials & Interfaces,
Год журнала:
2023,
Номер
15(7), С. 9412 - 9420
Опубликована: Фев. 13, 2023
One
of
the
important
industrial
processes
commonly
employed
in
pharmaceutical,
explosive,
and
plastic
manufacturing
industries
is
ipso-hydroxylation
arylboronic
acids.
In
this
work,
a
straightforward,
metal-free
methodology
for
synthesis
phenols
from
acids
has
been
demonstrated
using
hydroxyl
functionalized
boron
nitride
(BN–OH)
nanosheets.
The
groups
on
BN
nanosheets
act
as
active
sites
hydroxylation
reaction
to
take
place.
detailed
optimization
parameters
was
done
order
attain
high
catalytic
efficiency,
reactions
were
conducted
water,
which
eliminates
use
toxic
solvents.
as-synthesized
catalysts
exhibited
excellent
recyclability
reusability
addition
product
yields
good
turnover
numbers.
green
metrics
also
evaluated
model
examine
sustainable
nature
developed
protocol.
BN–OH
under
base-free
conditions
environmentally
benign
solvents
utmost
desired
can
pave
way
toward
organic
catalysis.
Abstract
Layered
double
hydroxides
(LDH)
have
significant
attention
in
recent
times
due
to
their
unique
characteristic
properties,
including
layered
structure,
variable
compositions,
tunable
acidity
and
basicity,
memory
effect,
ability
transform
into
various
kinds
of
catalysts,
which
make
them
desirable
for
types
catalytic
applications,
such
as
electrocatalysis,
photocatalysis,
thermocatalysis.
In
addition,
the
upcycling
lignocellulose
biomass
its
derived
compounds
has
emerged
a
promising
strategy
synthesis
valuable
products
fine
chemicals.
The
current
review
focuses
on
advancements
LDH‐based
catalysts
conversion
reactions.
Specifically,
this
highlights
structural
features
advantages
LDH
LDH‐derived
reactions,
followed
by
detailed
summary
different
methods
strategies
used
tailor
properties.
Subsequently,
hydrogenation,
oxidation,
coupling,
isomerization
reactions
biomass‐derived
molecules
are
critically
summarized
very
manner.
concludes
with
discussion
future
research
directions
field
anticipates
that
further
exploration
integration
cutting‐edge
technologies
hold
promise
addressing
energy
challenges,
potentially
leading
carbon‐neutral
or
carbon‐positive
future.
