Chemical Society Reviews,
Год журнала:
2023,
Номер
52(15), С. 5088 - 5134
Опубликована: Янв. 1, 2023
Sensors,
the
underlying
technology
that
supports
Internet
of
Things,
are
undergoing
multi-disciplinary
integration
development
to
constantly
improve
efficiency
human
production
and
life.
Simultaneously,
application
scenarios
in
emerging
fields
such
as
medical
diagnosis,
environmental
monitoring
industrial
safety
put
forward
higher
requirements
for
sensing
capabilities.
Over
last
decade,
single-atom
catalysts
(SACs)
have
attracted
tremendous
attention
environment
energy
due
their
high
atom
utilization
efficiencies,
controllable
active
sites,
tailorable
coordination
environments
structural/chemical
stability.
These
extraordinary
characteristics
extend
sensitivity
selectivity
sensors
beyond
current
limitations.
Here,
we
start
with
working
principles
SAC-based
sensors,
summarize
relationship
between
sensor
performance
intrinsic
properties
SACs,
followed
by
an
overview
design
strategy
development.
We
then
review
recent
advances
different
highlight
future
opportunities
challenges
exciting
applications.
Current Opinion in Chemical Engineering,
Год журнала:
2023,
Номер
42, С. 100981 - 100981
Опубликована: Ноя. 3, 2023
The
presence
of
iron
in
the
electrolyte
has
a
significant
impact
on
performance
electrodes
alkaline
water
electrolysis.
For
nickel-based
anodes,
is
needed
to
achieve
and
maintain
low
overpotentials
oxygen
evolution
reaction
(OER).
In
contrast,
hydrogen
evolution,
can
lead
deactivation
noble
metal-based
cathodes,
which
are
more
active
than
non-noble
metal
cathodes.
Since
catholyte
anolyte
mix
through
porous
separator,
stack
developers
need
decide
optimal
content
their
system.
It
seems
most
promising
focus
further
development
'iron-rich'
system,
also
considering
costs
construction
materials
purification.
Abstract
The
development
of
efficient
and
economical
electrocatalysts
for
oxygen
evolution
reaction
(OER)
is
paramount
importance
the
sustainable
production
renewable
fuels
energy
storage
systems;
however,
sluggish
OER
kinetics
involving
multistep
four
proton‐coupled
electron
transfer
hampers
progress
in
these
systems.
Fortunately,
surface
reconstruction
offers
promising
potential
to
improve
catalyst
design.
Anion
modulation
plays
a
crucial
role
controlling
extent
positively
persuading
reconstructed
species'
performances.
This
review
starts
by
providing
general
explanation
how
various
types
anions
can
trigger
dynamic
create
different
combinations
with
pre‐catalysts.
Next,
influences
anion
on
manipulating
process
are
discussed
based
situ
advanced
characterization
techniques.
Furthermore,
effects
survived
anionic
groups
species
water
oxidation
activity
further
discussed.
Finally,
challenges
prospects
future
directions
redirecting
construct
highly
practical
catalysts
proposed.
Single-atom
catalysts
(SACs)
hold
immense
promise
in
facilitating
the
rational
use
of
metal
resources
and
achieving
atomic
economy
due
to
their
exceptional
atom-utilization
efficiency
distinct
characteristics.
Despite
growing
interest
SACs,
only
limited
reviews
have
holistically
summarized
advancements
centering
on
performance
metrics.
In
this
review,
first,
a
thorough
overview
research
progress
SACs
is
presented
from
perspective
strategies,
advancements,
intriguing
approaches
employed
enhance
critical
attributes
are
discussed.
Subsequently,
comprehensive
summary
analysis
electrochemical
applications
provided,
with
particular
focus
efficacy
oxygen
reduction
reaction
,
evolution
reaction,
hydrogen
CO
National Science Review,
Год журнала:
2024,
Номер
11(11)
Опубликована: Окт. 15, 2024
ABSTRACT
An
in-depth
understanding
of
electrocatalytic
mechanisms
is
essential
for
advancing
electrocatalysts
the
oxygen
evolution
reaction
(OER).
The
emerging
oxide
pathway
mechanism
(OPM)
streamlines
direct
O–O
radical
coupling,
circumventing
formation
vacancy
defects
featured
in
lattice
(LOM)
and
bypassing
additional
intermediates
(*OOH)
inherent
to
adsorbate
(AEM).
With
only
*O
*OH
as
intermediates,
OPM-driven
stand
out
their
ability
disrupt
traditional
scaling
relationships
while
ensuring
stability.
This
review
compiles
latest
significant
advances
OPM-based
electrocatalysis,
detailing
design
principles,
synthetic
methods,
sophisticated
techniques
identify
active
sites
pathways.
We
conclude
with
prospective
challenges
opportunities
electrocatalysts,
aiming
advance
field
into
a
new
era
by
overcoming
constraints.
Next Sustainability,
Год журнала:
2024,
Номер
3, С. 100023 - 100023
Опубликована: Янв. 1, 2024
Electrochemical
water
splitting
driven
by
renewable
energy
is
a
sustainable
and
environmentally
friendly
way
to
produce
clean
hydrogen
fuel.
Due
the
slow
reaction
kinetics,
oxygen
evolution
(OER)
occurring
in
anode
side
regarded
as
bottleneck
of
overall
can
only
take
place
at
decent
rate
presence
efficient
catalysts
containing
transition
or
noble
metals.
Given
huge
demand
for
green
decarbonize
sector
chemical
industry,
global
supply
metal
has
become
large
concern.
In
this
context,
atomically
dispersed
(ADCs)
have
been
proposed
be
promising
alternative
conventional
nanoparticulate
catalysts,
enabling
maximal
utilization
metals
meantime
good
OER
performance
aqueous
solutions
both
alkali
acid.
view
potential
application
well
splitting,
well-designed
ADCs
composing
(iron,
cobalt
nickel)
(ruthenium
iridium)
active
sites
are
summarized
firstly
current
review.
Next,
powerful
tools
investigation
structure-performance
relationship
catalytic
mechanism
elaborated,
including
various
in-situ
characterizations
theoretical
calculation.
Finally,
some
challenges
perspectives
future
development
also
listed,
such
increasing
apparent
activity,
operation
stability
possible
device
verification.
The
purpose
review
provide
recent
process
field
our
understanding
research
toward
promote
further
splitting.
Materials Horizons,
Год журнала:
2025,
Номер
12(6), С. 1757 - 1795
Опубликована: Янв. 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.
Energy & Fuels,
Год журнала:
2025,
Номер
39(6), С. 3226 - 3242
Опубликована: Янв. 31, 2025
The
development
of
carbon-based
first-row
transition
metal
single-atom
catalysts
(SACs)
for
the
electrochemical
oxygen
evolution
reaction
(OER)
has
recently
gained
tremendous
attention.
However,
synthesis
SACs
mainly
relies
on
tailored
precursors
and,
therefore,
requires
extensive
and
time-consuming
chemical
reactions.
Herein,
we
report
a
simple
process
synthesizing
mesoporous
cobalt
SAC
(CoN4@C-SAC)
by
pyrolysis
readily
available
biomolecules
without
any
template
or
acid–base
treatments.
Raman
spectroscopy
confirms
minor
structural
defects
in
CoN4@C-SAC,
exemplified
an
ID/IG
value
as
low
0.13.
Synchrotron
X-ray
total
scattering
analysis
based
atomic
pair
distribution
function
reveals
turbostratic
graphene-like
structure
predominantly
containing
sp2
carbons
with
enlarged
interlayer
spacing
3.58
Å.
photoelectron
aberration-corrected
scanning
transmission
electron
microscopy
confirm
uniform
dispersion
Co–N4-type
species
graphene
surfaces.
With
its
unique
nanostructure
high
utilization
efficiency
Co
sites,
CoN4@C-SAC
exhibits
fairly
good
OER
activity
1
M
KOH,
demonstrated
overpotential
339
mV
at
10
mA/cm2
Tafel
slope
54
mV/dec,
mass
turnover
frequency
6726
mA/mg-Co
1.06
s–1
1.65
V,
respectively.
Impedance
analyses
clarify
that
facilitates
enhanced
kinetics
lower
charge
transfer
resistances.
catalyst
manifests
long-term
stability
practical
applications,
revealed
steady
performance
over
3000
redox
cycles
65
h
chronopotentiometry
measurement.
