Catalysts,
Journal Year:
2023,
Volume and Issue:
13(2), P. 279 - 279
Published: Jan. 26, 2023
Hydrogen
is
an
important
green
energy
source
and
chemical
raw
material
for
various
industrial
processes.
At
present,
the
major
technique
of
hydrogen
production
steam
methane
reforming
(SMR),
which
suffers
from
high
penalties
enormous
CO2
emissions.
As
alternative,
looping
water-splitting
(CLWS)
technology
represents
energy-efficient
environmentally
friendly
method
production.
The
key
to
CLWS
lies
in
selection
suitable
oxygen
carriers
(OCs)
that
hold
outstanding
sintering
resistance,
structural
reversibility,
capability
release
lattice
deoxygenate
generation.
Described
herein
are
recent
advances
designing
OCs,
including
simple
metal
oxides
(e.g.,
Fe,
Zn,
Ce,
Ti-based
oxides)
composite
perovskite,
spinel,
garnets),
different
processes
with
emphasis
on
crucial
parameters
determine
their
redox
performance
future
challenges.
Journal of CO2 Utilization,
Journal Year:
2024,
Volume and Issue:
84, P. 102833 - 102833
Published: June 1, 2024
As
an
eco-friendly
alternative
to
the
conventional
anthraquinone
process,
electrochemical
production
of
hydrogen
peroxide
(H2O2)
through
oxygen
reduction
reaction
has
been
attracting
attention.
The
goal
this
work
is
derive
a
carbon-based
material
from
carbon
dioxide
(CO2)
achieve
high
performance
in
H2O2
production.
Doping
heterogeneous
element
such
as
on
catalyst
mainly
explored
increase
selectivity
and
activity,
but
little
research
conducted
enhancing
catalytic
activity
with
oxidized
boron
insertion.
This
study
proposes
porous
materials
synthesized
CO2
electrocatalysts.
Polyethylene
oxide
(PEO)
was
thermally
treated
together
boron-oxygen
bonding
sites.
result,
having
functional
groups
BC2O
BCO2
showed
(1.25
mA
cm−2)
(∼90
%)
over
wide
voltage
range
two-electron
ORR
(Oxygen
Reduction
Reaction)
at
alkaline
media.
Furthermore,
H-cell
where
0.4
V
vs.
RHE
applied,
average
rate
maintained
452.96
mmol
g−1
h−1
for
four
hours
faraday
efficiency
90
%.
Journal of CO2 Utilization,
Journal Year:
2023,
Volume and Issue:
73, P. 102532 - 102532
Published: June 29, 2023
This
study
introduced
a
durable
oxygen
carrier
with
surface
enrichment
of
lanthanum
on
Co3O4
for
chemical
looping
combustion.
It
employed
the
in
order
to
optimize
usage
rare
earth
secured
stability
carriers.
The
formation
LaCoO3
perovskite
imparts
strong
durability
and
overcomes
deactivation
while
maintaining
CO2
selectivity
due
its
enhanced
sintering
resistance.
Lanthanum
dopants
were
optimized
at
10
wt%.
wt%
had
93.1%
95.4%
average
CH4
conversion
800
°C
50
cycles,
respectively.
provides
not
only
resistance
but
also
high
storage
capacity
long-term
cyclic
