Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
Abstract
As
the
demand
for
cleaner
energy
becomes
a
paramount
objective
of
sustainable
development,
advancement
cutting‐edge
engineered
materials
wide
range
applications
increasingly
vital.
Tailoring
catalyst
properties
through
precise
design
and
electronic
state
tuning
is
essential
adapting
these
to
large‐scale
applications.
Given
this,
an
effective
fine‐tuning
(EFT)
strategy
presented
optimize
structures
single‐atom
Zn
site
Ru
species,
synergistically
enhancing
both
electrocatalytic
oxygen
reduction
reaction
(ORR)
hydrogen
evolution
(HER).
Benefiting
from
interaction
between
species
anchored
on
hierarchically
layered
nanosheets
isolated
atoms
(Ru@Zn‐SAs/N‐C),
exhibits
superior
ORR
HER
activities
compared
benchmark
Pt/C
catalyst.
X‐ray
absorption
spectroscopy
density
functional
theory
(DFT)
calculations
confirm
novel
EFT
effect
single
that
enables
Ru@Zn‐SAs/N‐C
approaches
optimal
scaling
relation
*
OOH
OH,
breaking
universal
limitation.
Additionally,
G
H*
value
positions
near
apex
theoretical
volcano
model.
This
work
provides
innovative
avenue
regulating
localization
catalytic
active
centers
by
virtue
carbon
substrate
offers
valuable
insights
designing
high‐efficiency
electrocatalysts.
Molecules,
Год журнала:
2024,
Номер
29(21), С. 5208 - 5208
Опубликована: Ноя. 4, 2024
Metal
ion
intercalation
into
van
der
Waals
gaps
of
layered
materials
is
vital
for
large-scale
electrochemical
energy
storage.
Transition-metal
sulfides,
ABS4
(where
A
and
B
represent
Zr,
Hf,
Ti
as
monolayers
anodes),
are
examined
lithium
sodium
Our
study
reveals
that
these
offer
exceptional
performance
The
low
diffusion
barriers
enable
efficient
bonding
rapid
separation
while
all
phases
remain
semiconducting
before
lithiation
transition
to
metallic
states,
ensuring
excellent
electrical
conductivity.
Notably,
the
demonstrate
impressive
capacities:
1639,
1202,
1119
mAh/g
Li-ions,
1093,
801,
671
Na-ions
in
ZrTiS4,
HfTiS4,
HfZrS4,
respectively.
Average
voltages
1.16
V,
0.9
0.94
V
Li-ions
1.17
1.02
across
materials.
Additionally,
migration
0.231
eV,
0.233
0.238
eV
Li
0.135
0.136
0.147
Na
make
highly
attractive
battery
applications.
These
findings
underscore
potential
monolayer
a
superior
electrode
material,
combining
high
adsorption
energy,
barriers,
voltage,
specific
capacity,
outstanding
Inorganic Chemistry,
Год журнала:
2024,
Номер
63(46), С. 22074 - 22087
Опубликована: Ноя. 4, 2024
Microenvironments
in
heterogeneous
catalysis
have
been
recognized
as
equally
important
the
types
and
amounts
of
active
sites
for
regulating
catalytic
activity.
Two-dimensional
(2D)
nanospaces
between
van
der
Waals
(vdW)
gaps
layered
materials
provide
an
ideal
microenvironment
to
create
novel
functionalities.
Here,
we
explore
a
facile
method
fabricating
g-C3N4/2H-MoS2
superlattice-like
heterostructures
based
on
thermochemical
intercalation
polymerization
reactions
formamide
within
enlarged
vdW
2H-MoS2
nanosheets
without
any
transfer
process.
DFT
calculations
demonstrate
that
interlayer
electron–electron
correlations
due
effect
g-C3N4,
rather
than
high-κ
dielectric
environments,
lead
improvement
intrinsic
conductivity
nanosheets.
As
proof
concept
applications
electrocatalysis
field,
heterostructure
hydrogen
electrochemical
reaction
(HER)
exhibits
high
stability
activity
both
acid
alkaline
media,
such
quite
low
onset
overpotential
98
mV,
exchange
current
density
77.6
μA
cm–2,
small
Tafel
slope
(52.9
mV
dec–1)
medium.
The
enhanced
HER
is
attributed
improved
nanoconfinement
2D
decrease
activation
energy
activate
inert
basal
planes.
Electrochemistry,
Год журнала:
2024,
Номер
unknown, С. 441 - 475
Опубликована: Ноя. 27, 2024
The
semiconductor
industry
is
playing
a
very
crucial
role
in
the
technological
advancement
field
of
electrochemical
device
fabrication,
yet
it
faces
significant
challenges
terms
environmental
sustainability.
Thus,
this
chapter
an
effort
to
bring
forward
intricate
processes
involved
chip
fabrication
by
detailing
like
lithography,
etching,
and
doping,
describes
development
micro-electro-mechanical
systems
(MEMS)
energy-efficient
Network-on-Chips
(NoCs),
along
with
history
from
early
developments
(∼1950s)
on
(present).
Finally,
main
objective
work
explore
integrating
devices
chips,
such
as
lab-on-chip
for
medical
diagnostics,
microfluidic
energy
harvesting,
storage
devices,
supercapacitors.
By
exploring
innovative
approaches
miniaturizing
integrate
microelectronic
seamlessly.
Hence
opens
new
avenues
potential
chips
real-life
applications.
also
tries
provide
basic
knowledge
budding
researchers
policymakers
understand
basics
their
integration
devices.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 23, 2024
Abstract
As
the
demand
for
cleaner
energy
becomes
a
paramount
objective
of
sustainable
development,
advancement
cutting‐edge
engineered
materials
wide
range
applications
increasingly
vital.
Tailoring
catalyst
properties
through
precise
design
and
electronic
state
tuning
is
essential
adapting
these
to
large‐scale
applications.
Given
this,
an
effective
fine‐tuning
(EFT)
strategy
presented
optimize
structures
single‐atom
Zn
site
Ru
species,
synergistically
enhancing
both
electrocatalytic
oxygen
reduction
reaction
(ORR)
hydrogen
evolution
(HER).
Benefiting
from
interaction
between
species
anchored
on
hierarchically
layered
nanosheets
isolated
atoms
(Ru@Zn‐SAs/N‐C),
exhibits
superior
ORR
HER
activities
compared
benchmark
Pt/C
catalyst.
X‐ray
absorption
spectroscopy
density
functional
theory
(DFT)
calculations
confirm
novel
EFT
effect
single
that
enables
Ru@Zn‐SAs/N‐C
approaches
optimal
scaling
relation
*
OOH
OH,
breaking
universal
limitation.
Additionally,
G
H*
value
positions
near
apex
theoretical
volcano
model.
This
work
provides
innovative
avenue
regulating
localization
catalytic
active
centers
by
virtue
carbon
substrate
offers
valuable
insights
designing
high‐efficiency
electrocatalysts.
