Four
cobalt-based
metal-organic
frameworks
(Co-MOFs)
based
on
different
ligands
with
varying
electron-donating
properties
(dpt
=
2,5-di(pyridin-4-yl)-1,3,4-thiadiazole,
NH₂bdc
5-aminoisophthalic
acid,
OHbdc
5-hydroxyisophthalic
H₂tdc
thiophene-2,5-dicarboxylic
and
hfipbb
4,4'-(hexafluoropropane-2,2-diyl)bisbenzoic
acid)
are
synthesized.
Among
them,
Co-dpt-NH₂bdc
demonstrates
the
highest
nitrogen
reduction
reaction
activity,
achieving
an
ammonia
(NH
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 15, 2024
Abstract
The
underutilization
of
active
sites
limits
the
performance
enhancement
2D
transition
metal
boride
(MBene)
in
electrocatalytic
nitrogen
reduction
reaction
(NRR).
Herein,
a
highly
efficient
NRR
electrocatalyst
with
S
atoms
bridging
Fe
and
Mo
on
surface
MBene
is
successfully
constructed
by
using
an
site
electron
optimization
strategy,
which
increases
charge
density
around
enhances
activation
ability
catalyst
to
N
2
molecules.
It
noteworthy
that
FeS
‐MBene
demonstrates
low
intrinsic
potential
for
(−0.2
V
vs
RHE).
more
favorable
adsorption
comparison
hydrogen
atoms,
thereby
it
can
effectively
inhibit
evolution
(HER).
Under
−0.2
versus
RHE,
ammonia
yield
rate
37.13
±
1.31
µg
h
−1
mg
,
FE
55.97
2.63%.
Density
functional
theory
(DFT)
calculations
demonstrate
serves
as
.
formation
heterostructure
transfer,
resulting
becoming
electron‐rich
state
favor
subsequent
hydrogenation
steps.
This
work
offers
significant
insights
into
design
utilization
MBene‐based
catalysts
NRR.
ABSTRACT
Carbon
electrocatalyst
materials
based
on
lignocellulosic
biomass
with
multi‐components,
various
dimensions,
high
carbon
content,
and
hierarchical
morphology
structures
have
gained
great
popularity
in
electrocatalytic
applications
recently.
Due
to
the
catalytic
deficiency
of
neutral
atoms,
usage
single
lignocellulosic‐based
electrocatalysis
involving
energy
storage
conversion
presents
unsatisfactory
applicability.
However,
atomic‐level
modulation
lignocellulose‐based
can
optimize
electronic
structures,
charge
separation,
transfer
processes,
so
forth,
which
results
substantially
enhanced
performance
carbon‐based
catalysts.
This
paper
reviews
recent
advances
rational
design
as
electrocatalysts
from
an
perspective,
such
self/external
heteroatom
doping
metal
modification.
Then,
through
systematic
discussion
principles
reaction
mechanisms
catalysts,
prepared
catalysts
rechargeable
batteries
are
reviewed.
Finally,
challenges
improving
prospects
diverse
review
contributes
synthesis
strategy
via
modulation,
turn
promotes
lignocellulose
valorization
for
conversion.
Chemical Communications,
Год журнала:
2024,
Номер
60(99), С. 14862 - 14865
Опубликована: Янв. 1, 2024
A
new
metal–organic
framework
with
limited
π–π
interactions
between
naphthyl
carbons
creates
efficient
charge
transport
paths,
resulting
in
semiconductive
behavior.
