ACS Nano,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 7, 2024
Flash
Joule
heating
has
been
used
as
a
versatile
solid-state
synthesis
method
in
the
production
of
wide
range
products,
including
organic,
inorganic,
and
ceramic
products.
Conventional
flash
systems
are
large
customized,
presenting
significant
barriers
cost
assembly,
expertise
needed
to
operate,
uniformity
results
between
different
systems.
Even
laboratory-scale
struggle
operate
above
10
g
capacity,
they
suffer
from
poor
temperature
controllability.
We
present
here
use
commercial
off-the-shelf
arc
welders
superior
alternative
standard
due
their
low
($120),
ease
use,
compact
size,
high
controllability,
tunability.
demonstrate
gram-scale
variety
organic
species
using
these
With
addition
another
reactor
configuration
for
only
$260,
we
scale
up
products
record
rates
laboratory
scale,
achieving
rate
3
kg/h
graphene
kilogram-per-day
SiC,
carbon
nanotubes,
SnSe2,
SnS2.
Metal–support
interactions
(MSI)
play
a
crucial
role
in
enhancing
the
catalytic
activity
and
stability
of
metal
catalysts
by
establishing
stable
metal-oxide
interface.
However,
precisely
controlling
MSI
at
atomic
scale
remains
significant
challenge,
as
how
to
construct
an
optimal
is
still
not
fully
understood:
Both
insufficient
excessive
showed
inferior
performance.
In
this
study,
we
propose
finely
tuning
using
temporal-precise
transient
high-temperature
pulse
heating.
Using
Pt/CeO2
model
system,
systematically
investigate
variations
duration
atmosphere
influence
reconstruction
metal–support
interface
MSIs.
This
leads
formation
two
distinct
types
MSI:
(1)
strong
(SMSI,
Pt@CeO2)
(2)
reactive
(RMSI,
Pt5Ce@CeO2),
each
with
unique
compositions,
structures,
electrochemical
behaviors.
Notably,
Pt5Ce@CeO2
RMSI
exhibits
remarkable
performance
alkaline
hydrogen
evolution,
showing
overpotential
−29
mV
operation
for
over
300
h
−10
mA·cm–2.
Theoretical
studies
reveal
that
alloying
Pt
Ce
form
Pt5Ce
modifies
electronic
structure
Pt,
shifting
d-band
center
optimize
adsorption
dissociation
intermediates,
thereby
reducing
reaction
energy
barrier.
Moreover,
intimate
interaction
CeO2
further
improves
stability.
Our
strategy
enables
precise,
stepwise,
controllable
regulation
MSIs,
providing
insights
development
highly
efficient
durable
heterostructured
wide
range
applications.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 1, 2025
Abstract
Developing
catalysts
for
purifying
organic
pollutants
in
wastewater
is
significant
environmental
remediation.
Herein,
a
high‐temperature
(1000
K)
thermal
shock
(HTS)
method
employed
to
rapidly
synthesize
self‐supporting
catalyst
consisting
of
cobalt
(Co)
nanoparticles
(NPs)
and
carbonized
wood
(CW)
within
2
s.
Thanks
the
porous
structure
uniformly
distributed
Co
NPs,
exhibits
excellent
catalytic
activity,
achieving
over
99%
removal
25
mg
L
−1
Rhodamine
B
(RhB)
10
min
using
activated
peroxymonosulfate
advanced
oxidation
processes,
while
leaching
rate
ions
less
than
1
.
As
proof
concept,
continuous
filter
constructed
based
on
CW
efficient
RhB
degradation
flowing
water.
With
flow
20
mL
,
it
maintains
90%
from
duration
h.
Benefiting
rapid
synthesis
HTS
method,
“deactivation‐regeneration”
strategy
proposed
that
extends
recycling
cycles
times,
surpassing
most
reported
Co‐based
catalysts.
Derived
renewable
materials,
this
offers
advantages
high
efficiency,
low
cost,
simple
synthesis,
durability,
showing
great
potential
application
various
fields
including
water
treatment,
electrocatalytic
conversion,
energy
storage.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 8, 2025
Abstract
Approximately
4%
of
global
carbon
dioxide
emissions
originate
from
methane‐to‐hydrogen
technologies
used
in
industrial
hydrogenation
reactions.
Therefore,
electrocatalytic
(ECH)
utilizing
green
hydrogen
sources
are
gradually
receiving
widespread
attention.
How
to
inhibit
the
evolution
reaction
(HER)
by
regulating
microenvironment
order
enhance
ECH
efficiency
is
great
importance
for
environmental
protection
and
sustainable
development.
In
this
study,
situ
spatial
dimension
control
strategy
utilized
modulate
growth
Cobalt‐based
metal–organic
frameworks
(Co‐MOFs)
with
varied
dimensions
on
copper
foam
(CF),
thereby
vacancy
defects
carriers
optimize
electronic
state
active
sites.
Notably,
catalyst
derived
two‐dimensional
(2D
Co‐ZIF‐L
abundant
pyridinic‐N
exhibits
excellent
selectivity
(82%)
high
faradaic
(FE,
66%)
selective
biomass
molecules.
addition,
uncovering
differences
states
sites
key
achieving
targeted
adsorption
activation
ECH.
Rationally
selecting
MOF‐derived
catalysts
different
provides
an
effective
way
regulate
metal
nanoparticles
(NPs).
ACS Nano,
Journal Year:
2025,
Volume and Issue:
unknown
Published: May 4, 2025
Energy
materials
are
essential
for
addressing
global
energy
challenges,
and
their
design,
recycling,
performance
optimization
critical
sustainable
development.
To
efficiently
rise
to
this
occasion,
advanced
technology
should
be
explored
address
these
challenges.
This
review
focuses
on
the
potential
of
ultrafast
thermal
engineering
as
an
innovative
approach
design
recycling
systematically
examines
ultrahigh
temperature
shock's
origins,
mechanisms,
developmental
progress,
clarifying
fundamental
differences
between
Joule
heating
carbothermal
shock
modes.
Recent
advancements
in
lithium/sodium
battery
electrode
fabrication,
catalyst
synthesis,
by
comprehensively
summarized
highlight
processing
parameters,
structural
modulation
underlying
principles.
The
also
explores
mechanisms
processes,
scalability,
environmental
economic
implications.
Notably,
a
mechanistic
insight
into
dynamic
coexistence
UTS
is
proposed,
which
may
synergistically
govern
evolution
poor
conductivity/insulating
materials.
ultimately
aims
drive
development
application
field.
