Dalton Transactions,
Journal Year:
2023,
Volume and Issue:
52(19), P. 6501 - 6514
Published: Jan. 1, 2023
Hydrogenation
of
CO2
to
formate
is
a
vital
reaction,
because
an
excellent
hydrogen
carrier,
which
yields
blue
hydrogen.
Blue
comparatively
cheaper
and
attractive
as
the
world
envisions
economy.
In
this
work,
two
isostructural
lanthanide-based
MOFs
(JMS-6
JMS-7
[Ln(bpdc)3/2(dmf)2(H2O)2]n)
were
prepared
used
support
materials
for
molecular
catalysts.
The
bipyridyl
MOF
backbone
functionalised
using
pentamethylcyclopentadienyl
iridium(III)
chloride
give
Ir(III)@JMS-6a
Ir(III)@JMS-7a.
XPS
show
downfield
shifts
in
N
1s
binding
energy
indicating
successful
grafting
complex
MOF.
experiments
presence
organic
base
showed
that
active
towards
converting
formate.
Ir(III)@JMS-7a
exhibited
highest
turnover
numbers
813
621
respectively.
ICP-OES
indicated
insignificant
leaching
during
catalysis.
TEM
images
data
recovered
catalyst
ruled
out
Ir(0),
confirming
activity
observed
was
attributed
Iridium(III)
centres.
Applied Organometallic Chemistry,
Journal Year:
2022,
Volume and Issue:
36(8)
Published: May 24, 2022
Abstract
Carbon
dioxide
(CO
2
)
is
one
of
the
culprit
causes
global
climatic
changes.
Furthermore,
efficient
separation
CO
from
other
gaseous
mixtures
using
zeolitic
imidazolate
framework
(ZIF)‐based
materials
vital
for
several
processes
such
as
flue
gas
separation,
sweetening,
and
natural
processing.
ZIF‐based
are
emerging
adsorbents
catalysts
removal
via
adsorption
conversion
into
valuable
chemicals.
with
high‐adsorption/conversion
efficiencies
tunable
properties
can
be
achieved
by
judicious
synthesis
fabrication
methods.
We
reviewed
catalysis
(e.g.,
cycloaddition,
carboxylation,
hydrogenation,
N
‐formylation,
electrocatalysis,
photocatalysis).
In
addition,
recent
development
methods
membrane
technologies
ways
to
improve
performance
ZIF
membranes
were
highlighted.
The
prospective
point
view
promote
industrial
applications
commercialization
was
briefly
discussed.
Once
challenges
low
reproducibility
solved,
scalability
cost‐effectiveness
should
not
become
issues.
ChemCatChem,
Journal Year:
2023,
Volume and Issue:
15(14)
Published: June 7, 2023
Abstract
Following
the
advances
in
capture
technologies,
CO
2
utilization
associated
with
low‐cost
renewable
H
catalytic
hydrogenation
is
a
promising
strategy
for
reducing
carbon
footprint
of
industrial
processes
by
providing
valuable
chemicals
and
fuels.
However,
scalability
economic
viability
these
will
depend
on
development
efficient
catalysts.
Noble
metal‐based
catalysts
have
been
extensively
reported
last
few
years
as
highly
effective
promoting
to
various
products.
Although
promising,
scarcity,
high
cost,
environmental
impact
mining
make
it
challenging
scale
up
materials
from
bench
plant.
Developing
advanced
synthesis
characterization
methods
essential
control
understand
active
sites’
behavior
during
reaction,
activity
durability.
This
review
carefully
summarizes
recently
noble
heterogeneous
thermocatalytic
conversion
into
methane,
monoxide,
methanol,
formic
acid,
higher
alcohols,
C
2+
hydrocarbons,
syngas
through
dry
reforming
CH
4
,
draw
state‐of‐the‐art
field.
Finally,
we
critically
discuss
elements
catalyst
properties,
challenges
related
their
implementation,
future
research
opportunities.
Sustainable Energy & Fuels,
Journal Year:
2024,
Volume and Issue:
8(4), P. 777 - 788
Published: Jan. 1, 2024
The
half-sandwich
(tetrazolylpyridyl)iridium(
iii
)
complex
shows
improved
catalytic
activity
towards
hydrogenation
of
carbon
dioxide
to
formate
when
supported
in
a
mesoporous
m-UiO-66
MOF.
Chemical Engineering Journal,
Journal Year:
2024,
Volume and Issue:
494, P. 152922 - 152922
Published: June 14, 2024
Ruthenium
catalysts
supported
on
nitrogen-doped
carbon
(NDC)
have
gained
attention
due
to
their
exceptional
catalytic
performance
for
CO2
hydrogenation
formic
acid,
a
key
solution
mitigate
emissions.
However,
conventional
methods
preparing
NDC
typically
rely
petrochemical
compounds,
which
are
not
environmentally
friendly.
Herein,
we
propose
sustainable
and
innovative
approach
by
employing
protein-rich
green
algae
as
source
prepare
Ru
catalysts.
To
maximize
the
reduction
effect,
flue
gas
exhausted
from
industrial
processes
was
utilized
feed
cultivate
in
photobioreactor.
The
harvested
were
pyrolyzed
at
800
°C
under
an
N2
atmosphere
NDC.
After
metalation
of
prepared
NDC,
exhibited
turnover
number
7,599
demonstrated
potential
raw
material
deactivated
leaching
or
agglomeration
weakly
bound
analyzed
experimental
theoretical
investigations.
We
applied
NaBH4
treatment
stabilize
active
sites,
treated
retained
99.6
%
initial
activity
after
five
recycling
tests.
Furthermore,
achieved
cumulative
16,000
24
h.
This
study
offers
eco-friendly
method
reducing
emissions,
combining
cultivation
with
waste
production
acid
via
using
improved
algae-derived
Journal of CO2 Utilization,
Journal Year:
2024,
Volume and Issue:
86, P. 102896 - 102896
Published: Aug. 1, 2024
In
this
study,
we
developed
nitrogen-doped
carbon
supporting
materials
from
biomass-derived
fertilizers,
offering
a
sustainable
and
eco-friendly
approach
to
heterogeneous
catalysis
for
CO2
hydrogenation.
Three
types
of
fertilizers
(AA50,
AA80,
FV),
derived
different
biomass
sources,
were
evaluated
there
potential
prepare
the
N-doped
structure.
The
synthesis
fertilizer-based
resulted
in
an
abundant
amount
specific
structure
doped
nitrogen,
essential
immobilizing
atomically
dispersed
Ru
catalysts
during
catalytic
performance
supported
on
optimized
fertilizer-derived
exhibited
turnover
number
2748
over
two
hours
maintaining
98
%
stability
across
five
recycling
tests.
Analysis
spent
showed
that
our
supports
effectively
prevented
sintering
leaching
catalysts.
Moreover,
capability
industrial
application
was
validated
through
continuous
flow
reactor
test,
achieving
average
formate
productivity
697
mmol•gcat−1h−1
100
hours.
These
results
highlight
synthesized
catalyst
material
as
promising
solution
hydrogenation
formic
acid.
