The Journal of Physical Chemistry C,
Journal Year:
2024,
Volume and Issue:
128(45), P. 19109 - 19121
Published: Oct. 30, 2024
With
the
continuous
consumption
of
fossil
energy,
global
environment
faces
severe
problems
such
as
energy
consumption,
climate
change,
and
intensification
greenhouse
effect.
Whereas,
carbon
dioxide
electrochemical
reduction
(CO2RR)
can
transform
CO2
into
fuels
chemicals
high
value
via
catalytic
processes,
conditions
are
mild,
reaction
is
controllable,
environmentally
friendly,
there
many
products.
As
a
result,
CO2RR
technology
has
become
promising
way
to
address
these
achieve
sustainable
development.
Nonetheless,
inadequate
comprehension
electrocatalytic
kinetic
mechanism
continues
impede
logical
creation
electrocatalysts.
Utilizing
in
situ
infrared
spectroscopy,
Raman
X-ray
absorption
spectroscopy
proves
highly
effective
for
comprehensively
grasping
dynamic
dynamics
molecular
reactions.
This
knowledge
aids
uncovering
mechanisms
behind
reactions,
including
strength
binding
bond,
variations
atomic
vibration
peaks,
shifts
valence.
According
spectroscopic
principle
obtaining
catalyst
surface
information,
each
operation
derives
different
detection
methods,
suitable
various
materials
forms
catalysts.
review
summarizes
recent
advances
fields
spectroscopy.
Finally,
difficulties
prospects
research
discussed.
RSC Advances,
Journal Year:
2025,
Volume and Issue:
15(6), P. 4562 - 4572
Published: Jan. 1, 2025
In
this
study,
high
temperature
pyrolytic
carbon
materials
were
used
to
introduce
defect
sites.
At
the
same
time,
oxygen
vacancies
on
surface
of
cerium
enhance
adsorption
CO
2
and
electrocatalytic
activity.
Catalysts,
Journal Year:
2025,
Volume and Issue:
15(3), P. 255 - 255
Published: March 7, 2025
To
overcome
the
limitations
of
conventional
catalysts
in
sterically
hindered
esterification
reactions,
a
radio
frequency
(RF)
plasma-modified
SO42−/S2O82−/SnO2-Al2O₃
solid
superacid
catalyst
was
synthesized
via
sol-gel
and
impregnation,
followed
by
RF
plasma
treatment
calcination.
Comprehensive
characterization
revealed
that
modification
endowed
with
uniform
particle
distribution
(4.32
nm
average
size),
larger
specific
surface
area
(104.44
m2·g−1),
elevated
total
acid
content
(142.86
μmol·g−1),
increased
oxygen
vacancy
concentration
(16.4%),
compared
to
sol-gel–impregnation–calcination-prepared
catalyst.
The
SO42−-S2O82−/SnO2-Al2O3
subsequently
applied
perform
reaction
Tyr,
higher
steric
hindrance.
Mechanistic
studies
indicated
plasma-induced
etching
electronic
redistribution/intensified
electron-withdrawing
capability
SO42−/S2O82−
groups
synergistically
strengthened
Brønsted/Lewis
acidity.
For
tyrosine—a
demanding
substrate—the
modified
achieved
92.1%
methyl
tyrosine
yield
under
optimized
conditions
(180
°C,
0.8
MPa
N2,
6
h),
where
exhibited
better
mechanical
strength
lifetime
five
cycles.
This
work
not
only
provides
scalable
plasma-assisted
strategy
for
tuning
superacids
but
also
establishes
an
eco-friendly
alternative
traditional
catalysts,
reactions
some
high-steric-hindrance
substrates.
ABSTRACT
The
continuous
increase
in
the
concentration
of
carbon
dioxide
(CO
2
)
atmosphere
is
a
wake‐up
call
for
global
environmental
problems.
In
recent
years,
more
and
electrochemical,
photochemical,
thermochemical,
other
means
have
been
applied
to
use
converting
CO
into
value‐added
chemicals
or
fuels,
leveraging
characteristics
material
nanostructures
catalyze
reduction
,
reduce
atmosphere,
facilitate
balanced
carbon‐neutral
energy
cycle,
generate
renewable
human
use.
Among
options
available,
copper‐based
materials
established
as
sole
category
capable
variety
products,
including
16
hydrocarbons,
such
monoxide
(CO)
well
widely
used
alcohols.
This
paper
outlines
various
synthesis
approaches
nanostructured
catalysts
explores
their
applications
electrocatalytic,
photocatalytic,
thermocatalytic
.
Finally,
it
discusses
current
challenges
summarizes
potential
solutions
strategies
future
advancement
conversion
technology.
