ACS Catalysis,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1206 - 1216
Published: Jan. 6, 2025
Aqueous-phase
tandem
reactions,
as
a
fundamental
aspect
of
green
chemistry,
hold
crucial
position
in
the
contemporary
synthesis
fine
chemicals,
wherein
advancement
high-performance
heterogeneous
catalysts
remains
formidable
challenge.
Herein,
we
report
Pt1Con
single-atom
alloy
(SAA)
catalyst
which
Pt
single
atoms
are
immobilized
onto
surface
Co
nanoparticles
through
Pt–Co
coordination.
The
SAA
exhibits
high
chemoselectivity
for
aqueous-phase
hydrogenation–rearrangement
reaction
furfural
(FAL)
to
cyclopentanol
(CPL)
(yield:
>93%,
considering
carbon
loss),
with
TOF
value
2257
h–1
(based
on
Pt).
A
joint
investigation
based
dynamics,
isotope-label
tracing
experiments,
EPR,
and
situ
FT-IR
verifies
five-step
consecutive
pathway
formation
CPL.
Notably,
during
reaction,
rapid
exchange
hydrogen
would
occur
between
activated
species
water
solvent.
Furthermore,
molecule
does
not
serve
H-donor
but
is
involved
rearrangement
side
chain
furan
ring.
Kinetic
studies
combined
DFT
calculations
substantiate
that
interface
sites
effectively
lower
energy
barrier
cyclopentanone
(CPO)
hydrogenation
step
via
facilitating
activation
adsorption
carbonyl
group,
accounting
largely
enhanced
catalytic
behavior.
This
study
sheds
light
highly
efficient
stable
biomass
upgrading
aqueous
phase.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(14), P. 4847 - 4870
Published: Jan. 1, 2024
Based
on
the
advancements
in
atomically
dispersed
multi-site
catalysts
for
FZABs,
this
review
discusses
design
methodologies
to
regulate
performance
of
bifunctional
oxygen
electrocatalysts
from
electronic
and
geometric
structures.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(45)
Published: May 28, 2024
Abstract
The
past
decades
have
seen
considerable
imbalances
in
the
nitrogen
cycle
due
to
excessive
use
of
nitrate
agriculture
and
industry.
Electrocatalytic
reduction
(NO
3
RR)
(N
2
)
holds
significant
potential
for
addressing
pollution
wastewater
but
suffers
from
nitrite
formation
sluggish
hydrogeneration
process.
Here
a
single
atom
alloy
(SAA)
catalyst
featuring
atomically
dispersed
Ru
on
2D
Ni
metal
(Ru
1
Ni),
proving
remarkable
performance
−
–N
conversion
(≈93%)
N
selectivity
(≈99%))
through
co‐catalytic
metal‐support
interactions
(CMSI)
effect
is
reported.
Significantly,
SAA
achieves
NO
RR
removal
capacity
as
high
11.1
mg
L
−1
h
cm
−2
with
20
cycles
stability
(9
per
cycle),
surpassing
most
previously
reported
works.
core
boosting
lies
synergistically
promoted
activation
accelerated
hydrogenation
oxide
intermediates
site
substrate,
respectively,
revealed
by
various
situ
experiments
theoretical
simulations.
DFT
calculations
indicate
electron
transfer
substrate
more
robust
interaction
between
Ru–Ni
comparison
that
Ni–Ni.
This
work
offers
resilient
methodology
rational
design
highly
efficient
electrocatalysts
CMSI
modulation
RR,
illuminating
arena
treatment
cycle.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 10, 2024
Abstract
Developing
highly
efficient
and
low‐cost
catalysts
is
an
endless
challenge
in
the
field
of
producing
H
2
from
ammonia
borane
(AB).
Herein,
manufacture
yolk‐shell
CuO‐Co
3
O
4
@Co
nanocomposites
are
reported
by
using
Cu
O@CuO
as
a
template,
which
encapsulated
into
Co
hollow
nanocubes.
Due
to
unique
morphology
built‐in
electric
(BIEF)
induced
interface,
display
remarkable
catalytic
activity
AB
methanolysis.
The
turnover
frequency
(TOF)
24.8
min
‐1
absence
light
significantly
increases
33.9
when
exposed
visible
light.
experimental
theoretical
calculations
demonstrate
that
charge
migration
CuO
results
formation
dual
active
sites
(Cu
sites)
adsorption
activation
CH
OH
AB,
respectively.
Visible
light‐induced
acceleration
likely
caused
type‐II
heterojunction,
allows
large
number
photogenerated
electrons
accumulate
conduction
band.
This
effectively
activates
adsorbed
on
site,
rendering
it
easier
break
O−H
bond.
A
plausible
reaction
mechanism
involved
bond
OH,
RDS
proposed
according
FT‐IR
kinetic
isotope
effect
(KIE)
experiments.
work
offers
avenue
rationally
design
high‐performance
catalyst
for
rapid
hydrogen
production
methanolysis
under
Advanced Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 19, 2025
Abstract
Numerous
in
situ
characterization
studies
have
focused
on
revealing
the
catalytic
mechanisms
of
single‐atom
catalysts
(SACs),
providing
a
theoretical
basis
for
their
rational
design.
Although
research
is
relatively
limited,
stability
SACs
under
long‐term
operating
conditions
equally
important
and
prerequisite
real‐world
energy
applications,
such
as
fuel
cells
water
electrolyzers.
Recently,
there
has
been
rise
destabilization
regeneration
SACs;
however,
timely
comprehensive
summaries
that
provide
catalysis
community
with
valuable
insights
directions
are
still
lacking.
This
review
summarizes
recent
advances
strategies
SACs,
specifically
highlighting
various
state‐of‐the‐art
techniques
employed
studies.
The
factors
induce
identified
by
discussing
failure
active
sites,
coordination
environments,
supports,
reaction
scenarios.
Next,
primary
introduced,
including
redispersion,
surface
poison
desorption,
exposure
subsurface
sites.
Additionally,
advantages
limitations
both
ex
discussed.
Finally,
future
proposed,
aimed
at
constructing
structure–stability
relationships
guiding
design
more
stable
SACs.
Journal of Materials Chemistry A,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
We
introduce
high-entropy
single-atom
catalysts
(HESACs)
from
FeRuPtNiCoPd
HEA
on
GO
via
pulsed
laser
irradiation
in
liquids.
Synergistic
interactions
and
rapid
Fe
2+
photoreduction
enhance
active
sites,
achieving
superior
overall
water
splitting.
