ACS Catalysis,
Год журнала:
2021,
Номер
12(1), С. 616 - 623
Опубликована: Дек. 22, 2021
Heptazine
serves
as
the
solely
repetitive
unit
of
graphitic
carbon
nitride
(g-C3N4),
which
represents
a
progressive
metal-free
photocatalyst.
However,
synthesizing
high-quality
2D
heptazine-based
covalent
organic
frameworks
(COFs)
remains
formidable
challenge,
probably
due
to
scarcity
suitable
and
ample
reactive
building
blocks.
Herein,
we
designed
synthesized
4-(methylene
diacetate)phenyl-substituted
heptazine
monomer
(HEP-OAc)
by
oxidation
tris(4-tolyl)heptazine.
Accordingly,
two
highly
ordered
N-rich
COFs
(HEP-TAPT-COF
HEP-TAPB-COF)
were
readily
prepared
direct
condensation
HEP-OAc
with
C3-symmetric
aromatic
amines
under
solvothermal
conditions.
In
comparison
pristine
g-C3N4,
HEP-TAPT-COF
exhibited
greatly
enhanced
photocatalytic
performance
for
benzylic
C–H
selective
sulfoxidation
mild
This
work
provides
meaningful
insights
into
developing
crystalline
better
capacities.
Green Chemistry,
Год журнала:
2021,
Номер
23(12), С. 4228 - 4254
Опубликована: Янв. 1, 2021
HMF
electrooxidation
is
emerging
as
a
powerful
and
promising
method
to
produce
wide
range
of
high-value
chemicals
on
account
mild
operation
conditions,
controllable
selectivity,
scalability.
Angewandte Chemie International Edition,
Год журнала:
2021,
Номер
61(15)
Опубликована: Дек. 17, 2021
Green
carbon
science
is
defined
as
the
"study
and
optimization
of
transformation
carbon-containing
compounds
relevant
processes
involved
in
entire
cycle
from
resource
processing,
energy
utilization,
CO2
fixation,
recycling
to
utilize
resources
efficiently
minimize
net
emission."[1]
related
closely
neutrality,
fields
have
developed
quickly
last
decade.
In
this
Minireview,
we
propose
concept
index,
recent
progress
petroleum
refining,
production
liquid
fuels,
chemicals,
materials
using
coal,
methane,
,
biomass,
waste
plastics
highlighted
combination
with
green
science.
An
outlook
for
these
important
provided
final
section.
Advanced Materials,
Год журнала:
2022,
Номер
34(42)
Опубликована: Авг. 29, 2022
Electrocatalytic
oxidation
of
5-hydroxymethylfurfural
(HMF)
provides
an
efficient
way
to
obtain
high-value-added
biomass-derived
chemicals.
Compared
with
other
transition
metal
oxides,
CuO
exhibits
poor
oxygen
evolution
reaction
performance,
leading
high
Faraday
efficiency
for
HMF
oxidation.
However,
the
weak
adsorption
and
activation
ability
OH-
species
restricts
its
further
development.
Herein,
CuO-PdO
heterogeneous
interface
is
successfully
constructed,
resulting
in
advanced
onset-potential
(HMFOR),
a
higher
current
density
than
CuO.
The
results
open-circuit
potential,
situ
infrared
spectroscopy,
theoretical
calculations
indicate
that
introduction
PdO
enhances
capacity
organic
molecule.
Meanwhile,
promotes
species,
as
demonstrated
by
zeta
potential
electrochemical
measurements.
This
work
elucidates
enhancement
mechanism
interfaces
constructive
guidance
designing
multicomponent
electrocatalysts
electrocatalytic
reactions.
ACS Catalysis,
Год журнала:
2021,
Номер
11(15), С. 9618 - 9678
Опубликована: Июль 17, 2021
Value-added
chemicals,
fuels,
and
pharmaceuticals
synthesized
by
organic
transformation
from
raw
materials
via
catalytic
techniques
have
attracted
enormous
attention
in
the
past
few
decades.
Heterogeneous
catalysts
with
high
stability,
long
cycling
life,
good
environmental-friendliness,
economic
efficiency
are
greatly
desired
to
accomplish
transformations.
With
advantages
of
reversible
Ce3+/Ce4+
redox
pairs,
tailorable
oxygen
vacancies,
surface
acid–base
properties,
ceria-based
been
actively
investigated
fields
synthesis.
In
this
Review,
we
summarize
fundamentals
latest
applications
heterogeneous
for
transformations
thermocatalytic
photocatalytic
routes.
The
fabricating
approaches
various
ceria
their
structure/composition–activity
relationship
discussed
prospected.
advanced
characterization
theoretical
methods
reaction
mechanism
studies
over
CeO2-based
summarized
discussed.
This
comprehensive
Review
provides
a
basic
understanding
structure–performance
relationships
addition,
it
also
some
insights
outlooks
design
research
direction
better
performance.
Molecules,
Год журнала:
2020,
Номер
25(14), С. 3191 - 3191
Опубликована: Июль 13, 2020
Our
objective
in
this
review
article
is
to
find
out
relevant
information
about
methods
of
determination
antioxidant
activity
silver
nanoparticles.
There
are
many
studies
dealing
with
mentioned
problem
and
herein
we
summarize
the
knowledge
evaluating
nanoparticles
reported
so
far.
Many
authors
declare
better
compared
extract
used
for
synthesis
them.
In
review,
focused
on
detail
novel
perspective
techniques
solve
general
problems
associated
As
a
fascinating
visible-light-responsive
photocatalyst,
zinc
indium
sulfide
(ZnIn2
S4
)
has
attracted
extensive
interdisciplinary
interest
and
is
expected
to
become
new
research
hotspot
in
the
near
future,
due
its
nontoxicity,
suitable
band
gap,
high
physicochemical
stability
durability,
ease
of
synthesis,
appealing
catalytic
activity.
This
review
provides
an
overview
on
recent
advances
ZnIn2
-based
photocatalysts.
First,
crystal
structures
are
briefly
introduced.
Then,
various
modulation
strategies
outlined
for
better
photocatalytic
performance,
which
includes
morphology
structure
engineering,
vacancy
doping
hydrogenation
construction
composites.
Thereafter,
potential
applications
energy
environmental
area
photocatalysts
summarized.
Finally,
some
personal
perspectives
about
promises
prospects
this
emerging
material
provided.
Biotechnology for Biofuels,
Год журнала:
2021,
Номер
14(1)
Опубликована: Апрель 23, 2021
Abstract
Plant
biomass
is
a
highly
abundant
renewable
resource
that
can
be
converted
into
several
types
of
high-value-added
products,
including
chemicals,
biofuels
and
advanced
materials.
In
the
last
few
decades,
an
increasing
number
species
processing
techniques
have
been
developed
to
enhance
application
plant
followed
by
industrial
some
during
which
varied
technologies
successfully
developed.
this
review,
we
summarize
different
sources
biomass,
evolving
for
treating
it,
various
products
derived
from
biomass.
Moreover,
challenges
inherent
in
valorization
used
are
also
discussed.
Overall,
with
increased
use
development
treatment
technologies,
solution
raised
valorization,
value-added
will
become
greater
more
valuable.
