Coatings,
Journal Year:
2024,
Volume and Issue:
14(12), P. 1569 - 1569
Published: Dec. 15, 2024
Designing
and
developing
highly
active,
stable,
cost-effective
hydrogen
evolution
reaction
(HER)
catalysts
is
crucial
in
the
field
of
water
electrolysis.
In
this
study,
we
utilize
N-doped
porous
carbon
(CoNC)
derived
from
zeolite
imidazole
metal–organic
frameworks
(ZIF-67)
as
support
prepare
CoNC-Pt-IM-P
via
chemical
impregnation
(CoNC-Pt-IM)
plasma
treatment.
Systematic
analyses
reveal
that
calcined
CoNC
with
pyridinic
nitrogen
could
serve
a
robust
to
strongly
anchor
PtCo
nanoclusters,
while
argon
treatment
lead
noticeable
aggregation
Co
Pt
atoms
so
alter
electronic
environment
enhance
intrinsic
HER
catalytic
activity.
exhibit
outstanding
activity
toward
HER,
achieving
an
exceptionally
low
overpotential
31
mV
at
current
density
−10
mA
cm−2
Tafel
slope
36
dec−1.
At
50
mV,
its
mass
reaches
4.90
A
mgPt−1,
representing
enhancements
1.5
times
compared
CoNC-Pt-IM
12.3
commercial
20
wt%
Pt/C.
Furthermore,
it
operate
stably
for
over
110
h
cm−2,
demonstrating
exceptional
durability.
This
work
uses
achieve
controllable
their
activity,
which
has
advantage
avoiding
excessive
particle
commonly
used
method
high-temperature
calcination.
Carbon Energy,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 20, 2025
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 Science,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Through
dynamic
Se
leaching
and
phase
transition
during
HOR
process,
the
obtained
Pt–Se
catalyst
with
surface-decorated
atoms
regulates
water
structure
accelerates
OH
migration,
thereby
boosting
performance.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 13, 2025
Abstract
Electrocatalytic
hydrogenation
(ECH)
of
quinoline
provides
an
eco‐friendly
and
prospective
route
to
achieve
the
highly
value‐added
generation
1,2,3,4‐tetrahydroquinoline
(THQ).
Co
element
has
been
proven
be
efficient
catalytic
site
for
ECH
quinoline,
but
rational
regulation
electronic
structure
active
improve
activity
is
still
a
challenge.
Herein,
hierarchical
core–shell
consisting
NiCo‐MOF
nanosheets
encapsulated
Cu(OH)
2
nanorods
(Cu(OH)
@CoNi‐MOF)
constructed.
The
heterojunction
promotes
transfer
interfacial
charge
optimizes
site.
introduction
Ni
significantly
increases
binding
between
Cu,
preventing
exfoliation
sites
from
core,
reducing
reaction
energy
barrier
rate‐determining
step,
thus
resulting
in
superior
reactivity
durability.
Besides,
electrochemical
reconstruction
further
modulates
by
forming
multi‐metallic
compound
with
low
valence
state
(NiCoCu),
achieving
optimal
performance
conversion
99.5%
THQ
selectivity
100%.
A
flow‐cell
system
assembled,
demonstrating
prospect
industrial
application.
