Advanced Energy Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
Abstract
Carbon
dioxide
electroreduction
reaction
(CO
2
RR)
offers
a
pathway
to
convert
CO
into
valuable
multicarbon
products
(C
2+
),
potential
clean
energy,
and
chemical
vectors,
using
renewable
electricity.
Copper
catalysts
are,
so
far,
the
most
selective
in
this
process,
but
still
face
challenges
such
as
high
overpotentials
insufficient
selectivity
stability
when
used
alone.
One
strategy
tackle
these
is
use
of
Cu‐based
tandem
structures,
which
incorporate
tailored
sites
drive
segment
RR
reaction,
more
favorable
way,
within
same
electrode.
Recent
examples
have
shown
how
Cu‐tandem
can
lead
voltage
savings
improvements
selectivity.
This
review
analyses
various
catalysts,
focusing
on
alloys,
heterostructures
(especially
highlighting
role
polymer
coatings
achieving
effects
through
environmental
control),
metal–organic
frameworks
(MOFs).
It
covers
synthetic
strategies
achieve
tandem‐enabling
configurations
their
suggested
impact
mechanisms
performance
improvement
toward
C
electrosynthesis.
The
concludes
by
offering
roadmap
design
efficient
electrodes
for
CO₂RR
beyond.
Nano Materials Science,
Journal Year:
2024,
Volume and Issue:
6(4), P. 396 - 412
Published: Jan. 2, 2024
As
a
alternative
for
natural
enzymes,
nanozymes
has
shown
enzyme-like
activity
and
selectivity
in
the
field
of
various
kinds
biomedical
application,
which
attracted
considerable
research
interest.
Recently,
single-atom
catalysts
(SACs)
have
been
extensively
studied
due
to
their
similar
active
centers,
coordination
environment
better
stability
enzymes.
Metal-organic
frameworks
(MOFs)
demonstrated
as
highly
promising
precursors
synthesis
types
SACs.
MOF-derived
SACs
can
not
only
significantly
enhance
catalytic
activity,
but
also
improve
tunable
structure,
thereby
receiving
widespread
attention
biomedicine.
This
review
provided
an
overview
preparation
strategies
SACs,
then
detailed
latest
progress
cancer,
antibacterial,
antioxidation
biosensors.
Finally,
challenges
potential
future
opportunities
applications
are
proposed.
Inorganic Chemistry Frontiers,
Journal Year:
2024,
Volume and Issue:
11(5), P. 1479 - 1491
Published: Jan. 1, 2024
Ammonium
nickel
fluoride
(NH
4
NiF
3
)
undergoes
progressive
reconstruction
via
anodic
oxidation
in
alkaline
media
and
ultimately
transforms
into
a
F-doped
NiOOH
with
excellent
OER
activity
durability.
Chemical Engineering Journal,
Journal Year:
2023,
Volume and Issue:
476, P. 146556 - 146556
Published: Oct. 12, 2023
Single-atom
catalysts
(SACs)
have
emerged
as
attractive
materials
for
the
electrocatalytic
carbon
dioxide
reduction
(ECO2R).
Dual-atom
(DACs),
an
extension
of
SACs,
exhibit
more
compelling
functionalities
due
to
synergistic
effects
between
adjacent
metal
atoms.
However,
rational
design,
clear
coordination
mode,
and
in-depth
understanding
heteronuclear
dual-atom
mechanisms
remain
elusive.
Herein,
a
Ni-Ag
catalyst
loaded
on
defective
nitrogen-rich
porous
carbon,
denoted
Ni-Ag/PC-N,
was
synthesized
using
cascade
pyrolysis.
The
configuration
sites
is
confirmed
N3-Ni-Ag-N3.
Ni-Ag/PC-N
demonstrates
remarkable
CO
Faradaic
efficiency
(FECO)
exceeding
90%
over
broad
range
applied
potentials,
i.e.,
from
−0.7
−1.3
V
versus
reversible
hydrogen
electrode
(RHE).
peak
FECO
99.2%
observed
at
−0.8
(vs.
RHE).
Tafel
analysis
reveals
that
rate-determining
step
ECO2R-to-CO
formation
*COOH
intermediate,
exhibits
optimal
electrokinetics.
In
situ
FTIR
in
Raman
spectra
indicate
accelerated
production
intermediates
during
process.
Density
functional
theory
(DFT)
calculations
demonstrate
coordinated
Ni
atom
lowers
energy
barrier
surface,
while
Ag
mitigates
poisoning
caused
by
strong
*CO
affinity
atomic
site.
SmartMat,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 18, 2024
Abstract
Surface‐enhanced
Raman
scattering
(SERS)
has
been
visualized
as
a
promising
analytical
technique
in
marked‐molecule
detection
for
disease
diagnosis,
environmental
pollution,
and
so
on.
Noble
metal
nanoparticles,
especially
gold
nanoparticles
(AuNPs),
are
commonly
used
to
fabricate
SERS
substrates.
Herein,
we
facilely
fabricated
special
platform
improve
the
dispersity
homogeneity
of
AuNPs.
Practically,
based
on
nano‐graphene
oxide
(GO),
(s‐GO‐PEG‐R'hB)
was
prepared
through
GO
functionalization
with
biocompatible
poly(ethylene
glycol)
(PEG),
acid‐activated
fluorescence
molecule
(Rhodamine
B
lactam
derivative,
R'hB)
thiol
sites
cysteamine.
AuNPs
were
then
situ
grown
s‐GO‐PEG‐R'hB
sheets
provide
GO/AuNPs
nanocomposite
(Au@s‐GO‐PEG‐R'hB)
use
an
efficient
substrate,
which
can
exert
unique
electromagnetic
characteristics
its
dispersity.
With
systematic
morphology
composition
characterizations,
it
confirmed
that
uniform
located
multi‐functionalized
Au@s‐GO‐PEG‐R'hB
designed.
performed
well
towards
4‐aminothiophenol
(4‐ATP)
p‐phenylenediamine
(PD),
preferable
sensibility,
stability
effectiveness.
well‐knit
results,
is
indicated
could
take
advantages
inherent
electrochemical
properties
functionalized
be
potential
substrate
detection.
Thus,
foreseen
meet
diverse
sensing
demands
real
life.
Advanced Functional Materials,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 24, 2025
Abstract
Ni
single‐atoms
(SAs)
are
active
for
electrocatalytic
CO
2
reduction
reaction
(CO
RR)
to
CO,
but
their
performance
still
needs
be
further
improved
practical
implementation.
Herein,
a
strategy
of
“short‐
and
long‐range
modulation”
is
reported
synergistically
modulate
the
electronic
structure
SAs
by
constructing
nanoparticles
(NPs)
integrated
with
N,
P‐coordinated
on
N‐doped
carbon
supports
(Ni‐P
1
N
3
/Ni
NPs
@NC).
Experiments
theoretical
calculations
reveal
that
both
short‐range
modulation
involving
Ni–P
coordination
collectively
enhance
electron
localization
around
SAs,
thus
increasing
binding
strength
key
*
COOH
intermediate.
This
results
in
an
RR
lowering
energy
barrier.
Ni‐P
@NC
exhibits
Faradaic
efficiency
exceeding
99.0%
across
wide
potential
range
from
−0.5
−1.1
V
versus
reversible
hydrogen
electrode
(vs
RHE),
highest
partial
current
density
−544
mA
cm
−2
at
vs
RHE.
