ACS Omega,
Journal Year:
2025,
Volume and Issue:
10(16), P. 16993 - 17004
Published: April 15, 2025
Supported
Ni-based
catalysts
present
a
promising
alternative
to
precious
Pd-based
for
the
selective
hydrogenation
of
phenylacetylene
due
their
abundance
and
cost-effectiveness.
However,
influence
support
materials
on
catalytic
performance
has
been
insufficiently
explored.
In
this
study,
series
Ni3CuSn0.3
trimetallic
(Ni:Cu:Sn
molar
ratio
3:1:0.3;
Ni
loading
20
wt
%)
supported
various
materials,
including
SiO2,
SBA-15,
Al2O3,
MgO,
CeO2,
TiO2,
were
synthesized,
characterized,
evaluated.
general,
silica-supported
showed
higher
activity
but
lower
styrene
selectivity,
while
metal
oxide-supported
exhibited
reduced
enhanced
selectivity.
The
decreased
with
increasing
Sn
incorporation
into
Ni-Cu
alloys,
whereas
selectivity
was
affected
by
both
electronic
geometric
effects.
Among
tested,
Ni3CuSn0.3/Al2O3
demonstrated
highest
at
complete
conversion.
This
catalyst
further
prepared
via
scalable
solvent-free
ball
milling
method,
achieving
an
initial
reaction
rate
4.5
mmol/(g·min)
95%
conversion
under
60
°C
0.5
MPa.
Moreover,
it
displayed
stable
over
multiple
cycles,
properties
remaining
well-preserved.
These
results
offer
new
opportunities
developing
large-scale
processes
using
earth-abundant
catalysts.
ACS Catalysis,
Journal Year:
2024,
Volume and Issue:
14(6), P. 4211 - 4248
Published: March 5, 2024
Catalytic
transfer
hydrogenation
(CTH)
methodology
has
drawn
profound
attention
of
researchers
as
an
economical
and
environmentally
benign
alternate
to
conventional
method.
Unlike
method,
CTH
exhibits
better
reaction
efficiency
atom
economy,
it
makes
use
simple,
easily
accessible,
low-cost
hydrogen
sources.
Current
research
on
reactions
is
oriented
toward
the
development
non-noble-metal-based
catalysts
due
their
high
abundance
potential
large-scale
applicability.
In
this
Review,
different
organic
transformation
reactions,
such
nitroarenes,
nitriles,
alkenes,
alkynes,
carbonyl
compounds,
hydrogenolysis,
reductive
amination,
formylation
using
sources
have
been
summarized
comprehensively.
addition,
synthesis
strategies
heterogeneous
structure–activity
relationship
involving
metal–support
interaction,
single-atom
catalysis,
synergistic
effect
are
highlighted.
Furthermore,
optimization
parameters─such
temperature,
time,
solvents,
additives─for
enhancing
catalytic
activity
selectivity
product
discussed
in
detail.
This
Review
provides
detailed
insights
into
recent
progress
made
with
a
specific
focus
catalyst
development,
sources,
mechanistic
exploration.
AIChE Journal,
Journal Year:
2024,
Volume and Issue:
70(7)
Published: March 17, 2024
Abstract
Regulating
Ni
active
sites
toward
the
formation
of
target
product
is
great
importance
for
designing
high‐performance
cost‐effective
catalysts
catalytic
semi‐hydrogenations
but
remains
challenging.
Herein,
we
report
fabrication
NiSb
intermetallic
catalyst
via
structural
transformation
from
a
layered
double
hydroxides
precursor
boosting
propyne
semi‐hydrogenation.
Systematic
characterizations,
including
x‐ray
diffraction,
atomic‐resolution
electron
microscopy,
and
absorption
spectroscopy,
provide
evidence
P6
3
/mmc
phase
in
synthesized
catalyst.
The
host
are
demonstrated
to
be
isolated
by
high‐electronegativity
p
‐block
guest
Sb
sites,
which
deliver
remarkably
high
selectivity
propene,
that
is,
up
propene
96%
at
nearly
full
conversion.
Temperature‐programmed
surface
reaction
temperature‐programmed
desorption
measurements
combined
with
theoretical
calculations
unravel
excellent
originates
kinetically
more
favorable
than
its
hydrogenation
propane
on
regulated
sites.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 203 - 203
Published: Feb. 21, 2025
Using
anthropogenic
carbon
dioxide
(CO2)
as
a
feedstock
for
the
production
of
synthetic
fuel
has
gained
significant
attention
in
recent
years.
Among
various
CO2
conversion
pathways,
natural
gas
via
methanation
holds
promise
because
its
potential
both
recycling
and
renewable
energy
storage.
Nickel
(Ni)
ruthenium
(Ru)
are
dominant
metals
employed
catalysts
reaction.
This
review
summarizes
research
landscape
Ni-
Ru-based
over
last
ten
Bibliometric
analysis
revealed
that
China
highest
number
publications,
Chinese
Academy
Sciences
is
foremost
academic
institution,
International
Journal
Hydrogen
Energy
leading
journal
this
area
research.
The
publication
trend
on
Ni-based
published
at
almost
four
times
rate
catalysts.
Despite
growth
research,
problems
with
catalyst
stability
kinetics
still
exist.
latest
catalytic
systems,
including
supported,
bimetallic,
single-atom
fundamental
challenges
associated
process
reviewed.
provides
new
angle
future
studies
based
non-noble
Ni
noble
Ru
opens
way
additional
area.
Nano Letters,
Journal Year:
2024,
Volume and Issue:
24(17), P. 5197 - 5205
Published: April 18, 2024
Highly
active
nonprecious-metal
single-atom
catalysts
(SACs)
toward
catalytic
transfer
hydrogenation
(CTH)
of
α,β-unsaturated
aldehydes
are
great
significance
but
still
deficient.
Herein,
we
report
that
Zn–N–C
SACs
containing
Zn–N3
moieties
can
catalyze
the
conversion
cinnamaldehyde
to
cinnamyl
alcohol
with
a
95.5%
and
selectivity
95.4%
under
mild
temperature
atmospheric
pressure,
which
is
first
case
Zn-species-based
heterogeneous
for
CTH
reaction.
Isotopic
labeling,
in
situ
FT-IR
spectroscopy,
DFT
calculations
indicate
reactants,
coabsorbed
at
Zn
sites,
proceed
via
"Meerwein–Ponndorf–Verley"
mechanism.
also
reveal
high
activity
over
stems
from
suitable
adsorption
energy
favorable
reaction
rate-determining
step
sites.
Our
findings
demonstrate
hold
extraordinary
reactions
thus
provide
promising
approach
explore
advanced
high-value-added
chemicals.
