Nano Letters,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 28, 2025
Tellurium
(Te)
is
attractive
for
p-channel
transistors
due
to
its
high
hole
mobility.
Despite
having
a
low
thermal
budget
suitable
back-end-of-line
(BEOL)
monolithic
integration,
the
practical
realization
of
Te
hindered
by
stability.
In
this
work,
we
investigate
stability
thin
films
grown
via
scalable
evaporation.
Our
findings
identify
ruthenium
as
more
thermally
stable
contact
p-type
transistors,
capable
withstanding
temperatures
up
250
°C.
Ruthenium
exhibits
significantly
lower
diffusivity
in
compared
other
metals
commonly
used
such
nickel
and
palladium.
Using
transfer-length
method,
measured
resistance
1.25
kΩ·μm
at
ruthenium–tellurium
interface.
Additionally,
incorporation
high-κ
ZrO2
encapsulation
not
only
suppresses
sublimation
channel
elevated
but
also
serves
gate
dielectric
top-gate
devices
operating
1
V,
achieving
an
on/off
current
ratio
105.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 10, 2024
Abstract
The
rationalization
of
pH‐robust
catalysis
is
highly
desired
but
challengeable
for
overall
water
electrolysis
(WE).
It
requests
a
metal
active
site
that
can
make
an
efficient
adaption
with
both
cathodic
hydrogen
and
anodic
oxygen
evolution
reactions
(HER/OER).
Herein,
RuO
2‐x
/RuSe
2
heterostructure
electrocatalyst
profiled
interfacial
Se─Ru─O
bridge
the
splitting
studies.
An
asymmetric
bond
delta‐polarization
(Δp)
found
at
bridge,
including
Δp
>
0
Ru─O
part
<
Ru─Se
side
by
experiment
calculation
results.
enlarged
polarizability
(Δp
0)
in
principle
trigger
lattice
mediated
(LOM)
pathway
OER;
meanwhile,
reduced
benefit
HER
due
to
strengthened
d‐p
band
hybridization.
Resultantly,
deliver
ultralow
overpotentials
25/10
mV
Pt‐beyond
210/255
OER
10
mA
cm
−2
acidic/alkaline
media,
respectively.
In
especial,
acidic
WE
be
stably
operated
200
h
low
cell
voltage
1.478
V
.
This
research
clarifies
polarization
as
criterion
rational
design
catalysts.
Advanced Powder Materials,
Journal Year:
2024,
Volume and Issue:
3(5), P. 100224 - 100224
Published: July 27, 2024
Tuning
the
surface
properties
of
catalysts
is
an
effective
method
for
accelerating
water
electrolysis.
Herein,
we
propose
a
directional
doping
and
interfacial
coupling
strategy
to
design
two
surface-functionalized
Schottky
junction
coordinating
hydrogen
evolution
reaction
(HER)
oxygen
(OER).
Directional
with
B/S
atoms
endows
amphiphilic
g-C3N4
significant
n-/p-type
semiconductor
properties.
Further
Fe3C
modulates
energy
band
levels
B–C3N4
S–C3N4,
thus
resulting
in
functionalized
specific
surface-adsorption
The
space-charge
region
generated
by
dual
modulation
induces
local
"OH−-
H+-enriched"
environment,
selectively
promoting
kinetic
behavior
OER/HER.
Impressively,
designed
B–C3N4@Fe3C||S–C3N4@Fe3C
pair
requires
only
low
voltage
1.52
V
achieve
efficient
electrolysis
at
10
mA
cm−2.
This
work
highlights
potential
redox
reactions
electrolysis,
thereby
resolving
trade-off
between
catalytic
activity
stability.
Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 10, 2025
Abstract
Designing
heterogeneous
interface
to
enhance
the
kinetics
for
electrocatalysts
is
a
highly
efficient
but
challenging
pathway
toward
hydrogen
evolution
reaction
(HER)
in
water
electrolysis.
Herein,
coupling
of
CeO
2
quantum
dots
onto
porous
Ru
aerogel
through
interfacial
Ru‐O‐Ce
bridge
proposed
construct
‐Ru
as
superior
HER
electrocatalyst
with
ultra‐low
overpotentials.
In
situ
characterizations
and
theoretical
calculations
reveal
electron
distribution
at
boost
bonding
sites,
faster
adsorption
dissociation
sites
kinetics.
Furthermore,
employed
excellent
cathodes
both
acidic
alkaline
electrolyzers
ampere‐level
current
density
stably
operated
over
500
hours.
Thus,
synergistic
effect
tunes
catalytic
mechanism
reinforces
activity,
realizing
generation
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(29)
Published: May 25, 2024
Abstract
Efficient
and
durable
electrocatalysts
toward
alkaline
hydrogen
evolution
reaction
(HER)
are
of
great
significance
for
the
widespread
application
anion‐exchange
membrane
water
electrolyzer
(AEMWE).
Numerous
single‐phase
catalysts,
such
as
Ru
2
P,
have
been
explored
efficient
HER
catalysts;
however,
many
failed
to
overcome
inherent
sluggish
kinetics
two
separate
steps
involved
in
HER:
dissociation
production.
In
this
study,
density
functional
theory
calculations
conducted
identify
promising
combinations
Ir
P
materials
that
promote
fast
cascade
H
production
via
kinetically
favorable
spillover
from
surface
adjacent
P.
An
unprecedented
construction
cluster‐decorated
hollow
nanotubes
(
c
‐RP/IP
HNTs),
which
feature
a
cooperative
heterostructural
synergy
developed.
This
configuration
shows
greater
performance
than
commercial
Pt/C,
achieving
an
overpotential
23.2
mV
at
10
mA
cm
−
maintaining
long‐term
stability
55
h
half‐cell
tests.
Furthermore,
practical
AEMWE
test,
incorporating
HNTs,
demonstrated
remarkable
single‐cell
12.23
A
−2
2.0
V
operated
stably
under
1.0
over
250
h.
surpasses
state‐of‐the‐art
proton‐exchange
WE.
Materials Horizons,
Journal Year:
2025,
Volume and Issue:
12(6), P. 1757 - 1795
Published: Jan. 1, 2025
Noble
metal-based
oxide
electrocatalysts
are
essential
for
the
development
of
H
2
production
technology
by
water
electrolysis,
and
this
review
summarises
recent
research
progress
noble
metal
oxides
in
field
electrolysis.
