Organic Chemistry Frontiers,
Год журнала:
2020,
Номер
8(2), С. 384 - 414
Опубликована: Ноя. 11, 2020
Some
of
the
most
prominent
and
promising
catalysts
in
organic
synthesis
for
requisite
construction
C–C
C–N
bonds
are
palladium
(Pd)
catalysts,
which
play
a
pivotal
role
pharmaceutical
medicinal
chemistry.
Advanced Functional Materials,
Год журнала:
2023,
Номер
34(12)
Опубликована: Дек. 13, 2023
Abstract
Developing
efficient
catalysts
for
facilitating
organic
synthesis
processes
is
a
popular
but
challenging
topic
in
modern
chemical
industries.
A
combination
of
active
metals
and
an
support
structure
is,
theory,
effective
strategy
boosting
catalytic
activity
such
combinations
have
been
rarely
explored.
Herein,
fabricating
highly
dual‐active‐component
(DACCs)
presented
by
anchoring
single‐atom
(M
1;
e.g.,
Pd
1
,
Ni
Co
Zn
)
or
double‐atomic
(e.g.,
‐Co
‐Ru
‐Ni
on
nitrogen‐doped
holey
graphene
(NHG).
Among
the
resultant
DACCs,
/NHG,
which
combines
atomically
dispersed
metal
species
NHG
carbocatalyst,
has
shown
to
display
enhanced
performance
toward
nitroarene
reduction
.
In
particular,
its
efficiency
reducing
4‐nitrophenol
corresponds
turnover
frequency
2.0
min
−1
97
times
higher
than
benchmark
set
commercial
Pd/C
(5.0
wt.%),
vastly
superior
those
counterparts
carbocatalyst
supported
clusters.
Notably,
four
intermediates
two
components
(i.e.,
Pd)
process
identified.
This
study
presents
versatile
synthetic
prepare
DACCs
through
metallic
substrate.
Applied Surface Science,
Год журнала:
2022,
Номер
597, С. 153727 - 153727
Опубликована: Май 20, 2022
Effective
catalytic
removal
of
4-nitrophenol
(4-NP)
in
industrial
wastewater
remains
a
significant
challenge
due
to
the
lack
highly
efficient
and
stable
catalysts.
Herein,
we
demonstrated
promising
plasma
method
for
facile,
ultra-fast
low-temperature
synthesis
graphite
oxide
(GO)-supported
palladium
catalyst
(Pd/GO-P)
rich
oxygen-containing
groups
(OCGs)
defects
with
smaller
Pd
nanoparticles
(NPs)
4-NP
reduction.
The
limited
damage
OCGs
retained
more
(mainly
alkoxy
hydroxyl
groups)
on
GO
surface.
In
addition,
treatment
can
increase
active
sites
density
surface
defects.
These
promoted
adsorption
improved
dispersion
aqueous
solution
4-NP,
thereby
enhancing
reduction
performance.
Pd/GO-P
showed
highest
reported
thus
far,
concentration-normalized
rate
constant
5576
min−1
g−1
L.
This
value
was
51.6
20.5
times
greater
than
that
using
Pd/rGO-H
prepared
by
traditional
thermal
commercial
Pd/AC
catalyst,
respectively.
work
opens
avenue
exploring
use
rational
design
supported
catalysts
superior
performance
recycling
wastewater.
