Biotechnology Advances,
Journal Year:
2023,
Volume and Issue:
69, P. 108276 - 108276
Published: Nov. 1, 2023
Microbial
fermentation
processes
are
expected
to
play
an
important
role
in
reducing
dependence
on
fossil-based
raw
materials
for
the
production
of
everyday
chemicals.
In
order
meet
growing
demand
biotechnological
products
future,
alternative
carbon
sources
that
do
not
compete
with
human
nutrition
must
be
exploited.
The
chemical
conversion
industrially
emitted
greenhouse
gas
CO
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(21), P. 12006 - 12085
Published: Oct. 31, 2024
Catalytic
COx
(CO
and
CO2)
hydrogenation
to
valued
chemicals
is
one
of
the
promising
approaches
address
challenges
in
energy,
environment,
climate
change.
H2O
an
inevitable
side
product
these
reactions,
where
its
existence
effect
are
often
ignored.
In
fact,
significantly
influences
catalytic
active
centers,
reaction
mechanism,
performance,
preventing
us
from
a
definitive
deep
understanding
on
structure-performance
relationship
authentic
catalysts.
It
necessary,
although
challenging,
clarify
provide
practical
strategies
tune
concentration
distribution
optimize
influence.
this
review,
we
focus
how
induces
structural
evolution
catalysts
assists
processes,
as
well
efforts
understand
underlying
mechanism.
We
summarize
discuss
some
representative
tuning
for
realizing
rapid
removal
or
local
enrichment
around
catalysts,
along
with
brief
techno-economic
analysis
life
cycle
assessment.
These
fundamental
understandings
further
extended
reactions
CO
CO2
reduction
under
external
field
(light,
electricity,
plasma).
also
present
suggestions
prospects
deciphering
controlling
applications.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: May 31, 2024
Abstract
The
catalytic
partial
oxidation
of
methane
(POM)
presents
a
promising
technology
for
synthesizing
syngas.
However,
it
faces
severe
over-oxidation
over
catalyst
surface.
Attempts
to
modify
metal
surfaces
by
incorporating
secondary
towards
C–H
bond
activation
CH
4
with
moderate
O*
adsorption
have
remained
the
subject
intense
research
yet
challenging.
Herein,
we
report
that
high
performance
POM
can
be
achieved
regulation
occupation
in
atomically
dispersed
(AD)
MoNi
alloy,
95%
conversion
and
97%
syngas
selectivity
at
800
°C.
combination
ex-situ/in-situ
characterizations,
kinetic
analysis
DFT
(density
functional
theory)
calculations
reveal
Mo-Ni
dual
sites
AD
alloy
afford
declined
O
2
poisoning
on
Ni
rarely
weaken
pathway
following
combustion
reforming
reaction
(CRR)
mechanism.
These
results
underscore
effectiveness
turnovers
design
alloys
tunable
adsorption.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 31, 2025
Diatomic
catalysts
are
promising
for
the
electrochemical
CO2
reduction
reaction
(CO2RR)
due
to
their
maximum
atom
utilization
and
presence
of
multiple
active
sites.
However,
atomic-scale
design
diatomic
elucidation
synergistic
catalytic
mechanisms
between
centers
remain
challenging.
In
this
study,
heteronuclear
Fe─In
sites
anchored
on
nitrogen-doped
carbon
(FeIn
DA/NC)
constructed.
The
FeIn
DA/NC
electrocatalyst
achieves
a
CO
Faradaic
efficiency
exceeding
90%
across
wide
range
applied
potentials
from
-0.4
-0.7
V,
with
peak
99.1%
at
-0.5
V
versus
reversible
hydrogen
electrode.
situ,
attenuated
total
reflection
surface-enhanced
infrared
absorption
spectroscopy
density
functional
theory
calculations
reveal
that
interaction
Fe
induce
an
asymmetric
charge
distribution,
which
promote
adsorption
site
lowered
energy
barrier
formation
*COOH.
Moreover,
unique
structure
increase
*OH
through
bridging
interaction,
decrease
water
dissociation
further
promoted
CO2RR
activity.
Angewandte Chemie International Edition,
Journal Year:
2024,
Volume and Issue:
63(20)
Published: March 21, 2024
Abstract
The
electrochemical
synthesis
of
ethylene
oxide
(EO)
using
and
water
under
ambient
conditions
presents
a
low‐carbon
alternative
to
existing
industrial
production
process.
Yet,
the
electrocatalytic
epoxidation
route
is
currently
hindered
by
largely
insufficient
activity,
EO
selectivity,
long‐term
stability.
Here
we
report
single
atom
Ru‐doped
hollandite
structure
KIr
4
O
8
(KIrRuO)
nanowire
catalyst
for
efficient
via
chloride‐mediated
KIrRuO
exhibits
an
partial
current
density
up
0.7
A
cm
−2
yield
as
high
92.0
%.
impressive
performance
towards
ascribed
modulation
electronic
structures
adjacent
Ir
sites
Ru
atoms,
which
stabilizes
*CH
2
CH
OH
intermediate
facilitates
formation
active
Cl
species
during
generation
2‐chloroethanol,
precursor
EO.
This
work
provides
strategy
improving
reactivity
metal
in
heterogeneous
electrocatalysts.
