iScience,
Год журнала:
2024,
Номер
27(5), С. 109715 - 109715
Опубликована: Апрель 10, 2024
Hydrogen
generation
from
boron
hydride
is
important
for
the
development
of
hydrogen
economy.
Cobalt
(Co)
element
has
been
widely
used
in
hydrolysis
hydride.
Pyrolysis
a
common
method
materials
synthesis
catalytic
fields.
Herein,
Co-based
nanocomposites
derived
pyrolysis
organic
metal
precursors
and
are
summarized
discussed.
The
different
consisting
MOF,
supported,
metal,
phosphide
summarized.
mechanism
dissociation
based
on
oxidative
addition-reduction
elimination,
pre-activation
mechanism,
SN2
four-membered
ring
acid-base
intensively
Finally,
conclusions
outlooks
conveyed
design
high-efficiency
catalysts,
characterization
catalyst
structure,
enhancement
activities,
investigation
stability
active
structure.
This
review
can
provide
guidance
designing
catalysts
boosting
Science,
Год журнала:
2025,
Номер
387(6735), С. 769 - 775
Опубликована: Янв. 2, 2025
Carbon-neutral
hydrogen
production
is
of
key
importance
for
the
chemical
industry
future.
We
demonstrate
a
new
thermal
catalytic
route
partial
reforming
ethanol
into
and
acetic
acid
with
near-zero
carbon
dioxide
emissions.
This
reaction
enabled
by
catalyst
containing
high
density
atomic
Pt
1
Ir
species
supported
on
reactive
alpha-molybdenum
carbide
substrate,
achieving
rate
331.3
millimoles
per
gram
hour
an
selectivity
84.5%
at
270°C,
therefore
more
energy-efficient
compared
standard
reforming.
Techno-economic
analysis
demonstrates
potential
profitability
operation
industrial
scale,
presenting
opportunity
to
produce
substantially
reduced
footprint.
ACS Catalysis,
Год журнала:
2023,
Номер
13(24), С. 15730 - 15745
Опубликована: Ноя. 22, 2023
In2O3
is
a
promising
catalyst
for
the
hydrogenation
of
CO2
to
methanol,
relevant
renewable
energy
storage
in
chemicals.
Herein,
we
investigated
promoting
role
Al
on
using
flame
spray
pyrolysis
prepare
series
In2O3–Al2O3
samples
single
step
(0–20
mol
%
Al).
promoted
methanol
yield,
with
an
optimum
being
observed
at
content
5
%.
Extensive
characterization
showed
that
can
dope
into
lattice
(maximum
∼
1.2
%),
leading
formation
more
oxygen
vacancies
involved
adsorption
and
formation.
The
rest
present
as
small
Al2O3
domains
surface,
blocking
active
sites
contributing
higher
CO
selectivity.
At
(≥10
Al),
particle
size
decreases
due
stabilizing
effect
Al2O3.
Nevertheless,
these
smaller
particles
are
prone
sintering
during
since
they
appear
be
easily
reduced.
These
findings
show
subtle
effects
structural
promoter
such
reducibility
texture
catalyst.
Angewandte Chemie International Edition,
Год журнала:
2023,
Номер
63(2)
Опубликована: Дек. 8, 2023
Abstract
Zn‐based
catalysts
hold
great
potential
to
replace
the
noble
metal‐based
ones
for
CO
2
reduction
reaction
(CO
RR).
Undercoordinated
Zn
(Zn
δ+
)
sites
may
serve
as
active
enhanced
production
by
optimizing
binding
energy
of
*COOH
intermediates.
However,
there
is
relatively
less
exploration
into
dynamic
evolution
and
stability
during
process.
Herein,
we
present
ZnO,
/ZnO
varying
applied
potential.
Theoretical
studies
reveal
that
could
suppress
HER
HCOOH
induce
generation.
And
presents
highest
selectivity
(FE
70.9
%
at
−1.48
V
vs.
RHE)
compared
ZnO.
Furthermore,
propose
a
CeO
nanotube
with
confinement
effect
Ce
3+
/Ce
4+
redox
stabilize
species.
The
hollow
core–shell
structure
/ZnO/CeO
catalyst
enables
extremely
expose
electrochemically
area
while
maintaining
long‐time
stability.
Certainly,
target
affords
FE
76.9
−1.08
RHE
no
significant
decay
in
excess
18
h.
Journal of the American Chemical Society,
Год журнала:
2024,
Номер
146(11), С. 7467 - 7479
Опубликована: Март 6, 2024
Interfacial
interaction
dictates
the
overall
catalytic
performance
and
behavior
rules
of
composite
catalyst.
However,
understanding
interfacial
active
sites
at
microscopic
scale
is
still
limited.
Importantly,
identifying
dynamic
action
mechanism
"real"
site
interface
necessitates
nanoscale,
high
spatial-time-resolved
complementary-operando
techniques.
In
this
work,
a
Co3O4
homojunction
with
well-defined
effect
developed
as
model
system
to
explore
spatial-correlation
response
toward
oxygen
evolution
reaction.
Quasi
in
situ
scanning
transmission
electron
microscopy–electron
energy-loss
spectroscopy
spatial
resolution
visually
confirms
size
characteristics
dimension,
showing
that
activation
originates
from
strong
interactions
3
nm.
Multiple
time-resolved
operando
techniques
explicitly
capture
changes
adsorption
for
key
reaction
intermediates.
Combined
density
functional
theory
calculations,
we
reveal
adjustment
multiple
configurations
intermediates
by
highly
activated
facilitates
O–O
coupling
*OOH
deprotonation
processes.
The
dual
regulation
accelerates
kinetics
serves
pivotal
factor
promoting
activity
structure.
resulting
catalyst
(Co–B@Co3O4/Co3O4
NSs)
exhibits
an
approximately
70-fold
turnover
frequency
20-fold
mass
than
monomer
structure
(Co3O4
leads
significant
(η10
∼257
mV).
visual
complementary
analysis
multimodal
operando/in
provides
us
powerful
platform
advance
our
fundamental
structure–activity
relationships
structured
catalysts.
ACS Catalysis,
Год журнала:
2024,
Номер
14(3), С. 1862 - 1873
Опубликована: Янв. 19, 2024
As
a
potential
alternative
to
petroleum-derived
terephthalic
acid
(TPA),
the
general
production
of
2,5-furandicarboxylic
(FDCA)
through
5-hydroxymethylfurfural
(HMF)
oxidation
has
fallen
short
industrial
expectations
due
HMF's
storage
instability
and
cost.
Here,
we
propose
strategy
involving
Ru
cation
coordination
manipulation
achieve
efficient
5-methoxymethylfurfural
(MMF)
FDCA
by
constructing
Ru–Ce
paired
site
on
CeO2-doped
hydroxyapatite
precursor
(CeO2–HAP).
By
optimizing
reaction
conditions,
RuOx/CeO2–HAP
catalyst
demonstrated
complete
MMF
conversion
100%
high
yield
83.7%
under
base-free
conditions
(130
°C,
5
bar
O2
pressure,
15
h).
Hydrogen
temperature-programmed
reduction
(H2-TPR)
X-ray
photoelectron
spectroscopy
(XPS)
revealed
strong
interaction
between
Ce
with
electron
transfer
from
Ru.
Density
functional
theory
(DFT)
computations
indicated
that
d–d
π
σ
orbital
interactions
provided
sufficient
electrons
for
vacant
orbitals
Ru,
dispersing
density
states
(DOS)
around
low
energy
level
facilitate
adsorption
appropriate
strength,
thereby
enhancing
process.
This
study
not
only
provides
an
activity
but
also
conducts
comprehensive
investigation
into
impact
oxidation,
offering
insights
subsequent
high-value-added
products
such
as
FDCA.
Advanced Functional Materials,
Год журнала:
2024,
Номер
34(34)
Опубликована: Апрель 13, 2024
Abstract
The
peroxidase
(POD)‐mimic
nanozymes
can
be
a
potential
tool
for
point‐of‐care
(POC)
diseases
diagnosis.
However,
the
complex
sample
matrix
and
unspecific
multiple‐enzyme
activities
of
nanozyme
generate
false
background
signal
decrease
diagnostic
accuracy.
Here,
magnetic
POD‐specific
covalent
organic
framework
(COF)
confined
osmium
(Os)
nanoclusterzyme
Fe
3
O
4
@COF@Os
is
developed
biomarkers
biosensing.
First,
found
that
catalytic
activity
specificity
regulated
by
deoxidizers
functional
groups
COF
ligands.
By
using
ascorbic
acid
as
deoxidizer
F
ligands,
displayed
superior
negligible
oxidase
(OXD)
catalase
(CAT)
mimic
activity.
Therefore,
separate
analyze
targets
in
bio‐matrix
without
interference.
For
application,
based
lateral
flow
assay
established
serum
cancer
biomarker
prostate‐specific
antigen,
detection
limit
3.83
pg
mL
−1
.
clinical
prostatic
samples,
accuracy
100%
with
correlation
coefficient
0.998
commercial
ELISA
kit.
chronic
disease
sensing,
salivary
glucose
quantified
low
0.1
µ
m
,
interference
favorable
recyclability.
This
specific
offer
promising
pretreatment‐free
POC
strategy
rapid
accurate
Angewandte Chemie International Edition,
Год журнала:
2024,
Номер
63(34)
Опубликована: Май 31, 2024
Dispersion
of
single
atoms
(SAs)
in
the
host
is
important
for
optimizing
catalytic
activity.
Herein,
we
propose
a
novel
strategy
to
tune
oxygen
vacancies
CeO
