Artificial photosynthesis.,
Год журнала:
2025,
Номер
unknown
Опубликована: Май 16, 2025
Hydrogen
is
difficult
to
store
and
carry
because
hydrogen
a
gas
under
ambient
conditions.
Thus,
storage
in
liquid
or
solid
form
has
attracted
significant
attention.
converted
peroxide
by
reaction
with
dioxygen
an
appropriate
catalyst.
used
as
fuel
membraneless
one-compartment
cell.
On
the
other
hand,
hydrogenation
of
CO2
produces
formic
acid,
carbon
monoxide,
formaldehyde,
methanol
methane
depending
on
can
reduce
NAD+
NADH
homogeneous
catalysts.
thus
produced
catalysed
NADH-dependent
enzymes.
Abstract
The
use
of
methanol
as
a
chemical
precursor
and
fuel
additive
has
increased
recently
on
global
scale.
Hence,
this
study
combined
bibliometric
traditional
review
methods
to
assess
the
recent
trends
evolution
production,
well
its
use.
According
study,
producing
large
scale
from
renewable
sources
is
still
hampered
by
immature
technologies
used
in
production.
For
instance,
production
via
process
biochemical
conversion
remains
at
laboratory
level
even
though
it
proven
be
promising
option.
Cu-based
catalysts,
especially
Cu-Zn-based
were
found
most
frequently
catalysts
for
hydrogenation
CO
2
due
their
superior
activity.
shows
an
annual
growth
rate
3.63%
research
within
last
decade,
with
867
authors
involved.
China
leads
globally
consumption
research.
highest
collaboration
occurred
between
United
States
America
frequency
six.
proposed
future
directions,
including
evaluation
environmental
impact
methanol,
focusing
entire
life
cycle,
comparing
approaches,
streamlining
procedures.
It
also
recommended
conduct
flow
chemistry
novel
reactor
designs
that
enhance
mass
heat
transfer
catalytic
reactors.
Graphical
ACS Applied Materials & Interfaces,
Год журнала:
2024,
Номер
unknown
Опубликована: Март 29, 2024
The
conversion
of
CO2
into
value-added
chemicals
and
fuels
using
stable,
cost-effective,
eco-friendly
metal-free
catalysts
is
a
promising
technology
to
mitigate
the
global
environmental
crisis.
In
Calvin
cycle
natural
photosynthesis,
reduction
(CO2R)
achieved
cofactor
NADPH
as
reducing
agent
through
2e–/1H+
or
H–
transfer.
Consequently,
inspired
by
NAD(P)H,
series
organohydrides
with
adjustable
reducibility
show
remarkable
potential
for
efficient
CO2R.
this
review,
we
first
summarize
photosensitizers
NAD(P)H
regeneration
list
representative
photoenzyme
CO2R
system.
Then,
introduce
NAD(P)H-inspired
their
applications
in
redox
reactions.
Furthermore,
discuss
recent
progress
breakthroughs
utilizing
catalysts.
Moreover,
delve
reaction
mechanisms
these
organohydrides,
shedding
light
on
sustainable
alternatives
metal-based
Finally,
offer
insights
prospects
directions
advancing
intriguing
avenue
organohydride-based
Applied Organometallic Chemistry,
Год журнала:
2023,
Номер
37(7)
Опубликована: Апрель 26, 2023
Two
porphyrins,
named
H
2
TEtImP
and
DEtImP,
with
the
four
two
N‐ethylated
imidazole
groups,
respectively,
as
well
their
metalloporphyrins,
M‐TEtImP
(M
=
Zn,
Mn,
Co,
Mg)
Zn‐DEtImP,
were
synthesized
characterized
by
ultraviolet–visible
(UV–Vis),
mass
spectrometry
(MS),
proton
nuclear
magnetic
resonance
(
1
NMR),
Fourier
transform
infrared
(FTIR)
successfully.
The
catalytic
activity
of
these
newly
porphyrins
metal
centers
halogen
ions
variables
on
cycloaddition
reaction
between
carbon
dioxide
(CO
)
epoxides
was
investigated
under
solvent‐free
conditions.
experimental
results
strongly
verified
that
both
indispensable
active
sites.
increased
in
order
Co
<
Mn
Mg
Zn.
turnover
frequency
(TOF)
Zn‐TEtImP
for
CO
epichlorohydrin
high
2213
h
−1
(120°C,
MPa
,
6
h).
Moreover,
wide
applicability
to
this
demonstrated
substrate
extension
experiments,
excellent
recyclability
confirmed.
Finally,
synergistic
mechanism
Lewis
acid
(metal
center)
nucleophile
(Br
−
proposed
based
results.
Energies,
Год журнала:
2024,
Номер
17(16), С. 3934 - 3934
Опубликована: Авг. 8, 2024
Two
types
of
iron-based
catalysts,
[Fe/SiO2@iProPNP/PP3]
and
[Fe/SiO2@tBuPNP/PP3],
for
the
dehydrogenation
formic
acid
(FADH),
were
synthesized.
These
catalysts
developed
using
a
double-ligand
approach
combining
PNP
ligand
PP3
ligand,
demonstrating
functionality
without
need
additional
cocatalysts
or
additives.
Furthermore,
hybrid
[Fe/SiO2@tBuPNP/PP3]
created
by
covalently
grafting
ligands
onto
SiO2
particles.
The
exhibited
enhanced
recyclability,
with
turnover
numbers
(TONs)
exceeding
74,000.
In
situ
ATR-FTIR
UV-Vis
spectroscopies
used
to
monitor
structure
dynamics
under
catalytic
conditions,
revealing
formation
active
through
involvement
all
components:
[Fe
(metal)/PNP
(first
ligand)/PP3
(second
ligand)/FA
(substrate)],
which
are
crucial
FADH
catalysis.
An
Arrhenius
study
revealed
that
had
lower
activation
energy
(Ea
=
42.5
kJ/mol)
compared
its
homogeneous
counterpart
48.2
kJ/mol),
indicating
superior
performance.
Conversely,
showed
an
increased
48.3
form
46.4
kJ/mol).
This
discusses
differing
roles
tBuPNP
iProPNP
in
catalyst
configuration,
highlighting
potential
enhance
performance
recyclability
FADH,
offering
significant
implications
development
efficient
reusable
systems.
