ChemNanoMat,
Journal Year:
2023,
Volume and Issue:
10(2)
Published: Nov. 30, 2023
Abstract
The
cathodic
two‐electron
(2e
−
)
oxygen
reduction
reaction
(ORR)
has
garnered
much
attention
for
electrosynthesis
of
hydrogen
peroxide
(H
2
O
).
transition
metal
single‐atom
catalysts
(SACs)
with
tunable
geometry
structure
and
electron
layout
have
displayed
promising
potential
in
this
process.
Notably,
atomically
dispersed
Fe−based
electrocatalysts
been
recognized
as
high‐activity
yet
poor‐selectivity
2e
ORR
due
to
the
high
binding
energy
intermediates
break
peroxy
bond
into
H
O.
In
Concept
,
we
briefly
review
Fe
SAC
production
by
introducing
their
fundamental
mechanism,
chemical
process,
experimental
advancements,
practical
applications.
issues
encountered
corresponding
suggestions
are
discussed.
customized
tailored
isolated
motif
could
fulfill
activity,
selectivity
stability
system
synthesis.
EES Catalysis,
Journal Year:
2023,
Volume and Issue:
1(6), P. 892 - 920
Published: Jan. 1, 2023
This
review
draws
the
similarities
between
electroreforming
of
biomass
and
plastic
derivatives
highlights
pretreatment
raw
solid
waste,
innovation
in
catalyst
design,
mechanism
investigation
waste
derivative
conversion.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(17)
Published: Dec. 22, 2023
Abstract
Miniature
batteries
with
programmable
shape
and
scalable
functions
can
provide
new
opportunities
in
the
design
of
highly
compatible
integrated
circuits
flexible
microelectronics.
However,
achieving
these
energy
supply
devices
requires
precise
formation
active
electrode
materials
a
high‐resolution
patterned
area
using
appropriate
construction
protocols.
Here,
shape‐customizable
zinc‐based
microbatteries
(MBs)
an
all‐direct
laser
patterning
(DLP)
technique
is
demonstrated.
Unlike
conventional
processing
approaches,
DLP
high
spatial‐resolution
not
only
enable
template‐free
efficient
arbitrary
customizable
fabrication
geometry
patterns,
such
as
circular,
papercut,
tropical
fish,
house
shapes,
among
others,
but
also
spontaneously
create
oxygen
vacancies
within
micro‐electrode
that
are
beneficial
to
increasing
electrochemical
sites.
The
resultant
Zn//MnO
2
MBs
deliver
areal
capacity
0.57
mAh
cm
−2
density
0.75
mWh
,
surpassing
most
available
aqueous
Zn‐based
Li/Na‐based
MBs.
This
strategy
be
extended
other
battery
systems,
Zn//Co
Zn//Ag
More
importantly,
micro‐batteries
easily
into
on‐chip
electronic
systems
built‐in
power
multiple
sensing
functionalities,
which
showcase
accurately
monitoring
wrist
bending,
pulse
beating,
temperature,
moisture
signals
humans.
Chemistry of Materials,
Journal Year:
2024,
Volume and Issue:
36(9), P. 4262 - 4274
Published: April 16, 2024
Nitrogen
doping
has
become
a
fundamental
approach
to
enhance
the
catalytic
performance
of
carbon
materials
across
various
applications.
The
introduction
nitrogen
creates
defects
and
active
sites,
promoting
formation
small
metal
particles
strengthening
metal–support
interaction
within
materials.
However,
challenge
lies
in
developing
sustainable
cost-effective
methods
for
synthesizing
nitrogen-doped
In
this
study,
we
present
synthesis
ruthenium
on
catalysts
(Ru-CCP)
using
chitosan
as
source.
Unlike
traditional
methods,
our
process
avoids
use
additional
precursors
templates,
streamlining
while
renewable
resource.
synthesized
material
exhibits
an
exceptional
electrochemical
hydrogen
evolution
reaction
(HER)
alkaline
conditions
by
achieving
current
density
25
mA
cm–2
at
impressively
low
overpotential
46
mV,
outperforming
Pt/C
under
similar
conditions.
detailed
studies
structural
electronic
properties
X-ray
absorption
spectroscopy
(XAS),
photoelectron
(XPS),
diffraction
(XRD),
transmission
electron
microscopy
(TEM)
revealed
that
remarkable
activity
is
upheld
unique
interplay
between
Ruδ+
surface
moieties,
notably
pyridinic
pyrrolic
nitrogen.
Here,
demonstrate
control
particle
size
environment
around
atom
via
unravel
role
tuning
performance.
addition,
work
offers
insights
into
efficient
HER
catalyst
design
emphasizes
potential
biomass-derived
like
advancing
clean
production
energy
