ACS Applied Nano Materials,
Год журнала:
2023,
Номер
7(1), С. 951 - 956
Опубликована: Дек. 18, 2023
Room-temperature
nitrate
electroreduction
can
simultaneously
synthesize
ammonia
and
eliminate
N-contaminants,
which
has
attracted
a
lot
of
interest
but
still
needs
efficient
electrocatalysts.
Here,
we
report
the
in
situ
derivation
an
amorphous
cobalt
borate
(CoBi)
film
on
Co3O4
nanoarray
carbon
cloth
(Co3O4@CoBi/CC)
for
generation
via
selective
at
room
temperature
atmospheric
pressure.
In
neutral
phosphate-buffered
electrolyte
containing
0.1
M
NaNO3,
such
catalyst
exhibits
maximum
yield
rate
6.80
mg/h/cm2
(−1.0
V
vs
RHE)
high
Faradaic
efficiency
up
to
97%
(−0.7
RHE).
Besides,
its
catalytic
activity
remains
stable
recycling
tests
long-term
electrolysis.
An
aqueous
Zn
battery
with
Co3O4@CoBi/CC
as
cathode
shows
performance
well.
Advanced Materials,
Год журнала:
2024,
Номер
36(21)
Опубликована: Фев. 11, 2024
Abstract
Photoelectrochemical
(PEC)
catalysis
provides
the
most
promising
avenue
for
producing
value‐added
chemicals
and
consumables
from
renewable
precursors.
Over
last
decades,
PEC
catalysis,
including
reduction
of
feedstock,
oxidation
organics,
activation
functionalization
C─C
C─H
bonds,
are
extensively
investigated,
opening
new
opportunities
employing
technology
in
upgrading
readily
available
resources.
However,
several
challenges
still
remain
unsolved,
hindering
commercialization
process.
This
review
offers
an
overview
targeted
at
synthesis
high‐value
sustainable
First,
fundamentals
evaluating
reactions
context
product
both
anode
cathode
recalled.
Then,
common
photoelectrode
fabrication
methods
that
have
been
employed
to
produce
thin‐film
photoelectrodes
highlighted.
Next,
advancements
systematically
reviewed
discussed
conversion
various
feedstocks
highly
valued
chemicals.
Finally,
prospects
field
presented.
aims
facilitating
further
development
precursors
products
other
pharmaceuticals.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Июнь 27, 2024
Abstract
Ammonia
(NH
3
)
is
a
carbon-free,
hydrogen-rich
chemical
related
to
global
food
safety,
clean
energy,
and
environmental
protection.
As
an
essential
technology
for
meeting
the
requirements
raised
by
such
issues,
NH
capture
has
been
intensively
explored
researchers
in
both
fundamental
applied
fields.
The
four
typical
methods
used
are
(1)
solvent
absorption
ionic
liquids
their
derivatives,
(2)
adsorption
porous
solids,
(3)
ab-adsorption
liquids,
(4)
membrane
separation.
Rooted
development
of
advanced
materials
capture,
we
conducted
coherent
review
design
different
materials,
mainly
past
5
years,
interactions
with
molecules
construction
transport
pathways,
as
well
structure–property
relationship,
specific
examples
discussed.
Finally,
challenges
current
research
future
worthwhile
directions
proposed.
Advanced Materials,
Год журнала:
2023,
Номер
35(44)
Опубликована: Авг. 19, 2023
The
efficient
catalysis
of
nitrogen
(N2
)
into
high-value
N-containing
products
plays
a
crucial
role
in
the
N
economic
cycle.
However,
weak
N2
adsorption
and
invalid
activation
remain
two
major
bottlenecks
rate-determining
steps,
leading
to
low
fixation
performance.
Herein,
an
effective
dual
active
sites
photocatalyst
polyoxometalates
(POMs)-based
metal-organic
frameworks
(MOFs)
is
highlighted
via
altering
coordination
microenvironment
inducing
directional
shunting
photogenerated
carriers
facilitate
/catalyst
interaction
enhance
oxidation
MOFs
create
more
open
unsaturated
metal
cluster
with
unoccupied
d
orbital
possessing
Lewis
acidity
accept
electrons
from
3σg
bonding
for
storage
by
combining
POMs
replace
bidentate
linkers.
act
as
electron
sponges
donating
MOFs,
while
holes
flow
POMs.
hole-rich
strong
capacity
are
easily
involved
oxidizing
adsorbed
.
Taking
UiO-66
(C48
H28
O32
Zr6
Mo72
Fe30
([Mo72
O252
(CH3
COO)12
{Mo2
O7
(H2
O)}2
{H2
Mo2
O8
O)}(H2
O)91
]·150H2
O)
example,
@UiO-66
shows
twofold
enhanced
(250.5
cm3
g-1
than
(122.9
at
P/P0
=
1.
And,
HNO3
yield
702.4
µg
h-1
,
≈7
times
24
higher
This
work
provides
reliable
value
relaying
artificial
fixation.
Abstract
Carbon
neutrality
is
an
important
goal
for
humanity
.
As
eco‐friendly
technology,
electrocatalytic
clean
energy
conversion
technology
has
emerged
in
the
21st
century.
Currently,
metal‐organic
framework
(MOF)‐based
electrocatalysis,
including
oxygen
reduction
reaction
(ORR),
evolution
(OER),
hydrogen
(HER),
oxidation
(HOR),
carbon
dioxide
(CO
2
RR),
nitrogen
(NRR),
are
mainstream
catalytic
reactions,
which
driven
by
electrocatalysis.
In
this
paper,
current
advanced
characterizations
analyses
of
MOF‐based
reactions
have
been
described
details,
such
as
density
function
theory
(DFT),
machine
learning,
operando/in
situ
characterization,
provide
in‐depth
mechanisms
related
to
above
reported
past
years.
The
practical
applications
that
developed
some
responses
application
values,
fuel
cells,
metal‐air
batteries,
and
water
splitting
also
demonstrated.
This
paper
aims
maximize
potential
electrocatalysts
field
catalysis,
shed
light
on
development
intense
situations.
Sustainability,
Год журнала:
2023,
Номер
15(20), С. 14792 - 14792
Опубликована: Окт. 12, 2023
Drought
stress
threatens
global
food
security
and
requires
creative
agricultural
solutions.
Recently,
phyto-synthesized
nanoparticles
NPs
have
garnered
attention
as
a
way
to
reduce
crop
drought.
This
extensive
research
examines
how
improve
growth
biochemistry
in
drought-stressed
situations.
The
review
begins
with
an
introduction
highlighting
the
urgency
of
addressing
challenges
posed
by
It
also
highlights
significance
synthesized
from
photosynthesis
this
context.
Its
purpose
is
underscore
importance
sustainable
farming
practices.
approach
contrasted
conventional
methods,
elucidating
ecological
economic
advantages
NPs.
discusses
nanoparticles,
including
titanium
dioxide,
iron
oxide,
gold,
silver,
copper.
In
addition,
we
their
ability
enhance
resistance.
primary
focus
elucidate
effects
on
plant
development
under
drought
stress.
Noteworthy
outcomes
encompass
improvements
seed
germination,
seedling
growth,
water
absorption,
photosynthesis,
chlorophyll
content,
activation
antioxidant
defense
mechanisms,
modulation
hormonal
responses.
These
results
potential
agents
for
enhancing
mitigating
assesses
risks
using
agriculture.
Considerations
include
non-target
organisms,
soil,
environmental
impacts.
Further
needed
determine
long-term
effects,
dangers,
benefits
Nanoparticles
offer
targeted
improving
tolerance,
outpacing
traditional
methods
ethics
balance.
Their
mechanisms
range
nutrient
delivery
molecular
regulation.
However,
impact
remains
understudied.
critical
identifying
gaps
advancing
practices
amid
scarcity.
