Catalysis Reviews,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 61
Published: May 28, 2024
Nowadays,
extensive
efforts
have
been
devoted
to
the
fabrication
and
design
of
metalbased
catalysts
with
high
activity,
selectivity,
stability.
Theoretical
experimental
investigations
empowered
construction
a
variety
techniques
tune
catalytic
efficiency
by
monitoring
their
size,
morphology,
composition,
crystal
structure.
Multimetal
(MMCs)
provide
revolutionary
synergistic
effect
between
metals,
which
is
promising
strategy
enhance
catalysts'
productivity
product
selectivity.
The
purpose
this
article
familiarize
readers
most
uptodate
information
regarding
synthesis
classification
MMCs.
key
roles
MMCs
electrocatalysts
in
applications
such
as
CO2
conversion
via
electrochemical
reduction
reaction
(ECO2RR),
H2
evolution
(HER),
O2
(OER),
(ORR),
N2
(NRR),
methanol
oxidation
(MOR),
ethanol
(EOR),
formic
acid
(FAOR),
urea
(UOR)
are
summarized.
This
review
also
addressed
challenges
prospects
for
multimetallic
catalyst
design,
characterization,
applications.
will
clear
roadmap
research
progress
electrocatalytic
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(7), P. 3694 - 3812
Published: March 22, 2024
Electrocatalytic
water
splitting
driven
by
renewable
electricity
has
been
recognized
as
a
promising
approach
for
green
hydrogen
production.
Different
from
conventional
strategies
in
developing
electrocatalysts
the
two
half-reactions
of
(e.g.,
and
oxygen
evolution
reactions,
HER
OER)
separately,
there
growing
interest
designing
bifunctional
electrocatalysts,
which
are
able
to
catalyze
both
OER.
In
addition,
considering
high
overpotentials
required
OER
while
limited
value
produced
oxygen,
is
another
rapidly
exploring
alternative
oxidation
reactions
replace
hybrid
toward
energy-efficient
generation.
This
Review
begins
with
an
introduction
on
fundamental
aspects
splitting,
followed
thorough
discussion
various
physicochemical
characterization
techniques
that
frequently
employed
probing
active
sites,
emphasis
reconstruction
during
redox
electrolysis.
The
design,
synthesis,
performance
diverse
based
noble
metals,
nonprecious
metal-free
nanocarbons,
overall
acidic
alkaline
electrolytes,
thoroughly
summarized
compared.
Next,
their
application
also
presented,
wherein
anodic
include
sacrificing
agents
oxidation,
pollutants
oxidative
degradation,
organics
upgrading.
Finally,
concise
statement
current
challenges
future
opportunities
presented
hope
guiding
endeavors
quest
sustainable
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(5), P. 1984 - 1996
Published: Jan. 1, 2024
A
urea-assisted
water
splitting
electrolyzer
based
on
Pt
nanoparticle-anchored
Ni(OH)
2
@Ni-CNF
catalyst
and
Pt@Ni-CNF
is
constructed
for
effectively
reducing
the
energy
consumption
of
H
production.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(3)
Published: Oct. 11, 2023
Abstract
Ni‐based
electrocatalysts
are
regarded
as
highly
promising
ones
for
urea‐assisted
electrolytic
water
hydrogen
production
technology.
However,
during
the
urea
oxidation
reaction
(UOR)
process,
their
activity
is
significantly
constrained
by
unavoidable
Ni
species
self‐oxidation
reaction,
and
harmful
liquid‐phase
products
(NO
x
−
)
generated
from
over‐oxidize
also
often
neglected.
Herein,
A
self‐supported
W‐doped
Ni‐C
3
S
N
‐based
coordination
polymer
electrode
(W‐NT@NF)
with
tailored
3+
active
sites
using
ligand
anchoring
high‐valence
metal
doping
strategies
synthesized,
which
certified
that
this
pyrolysis‐free
catalyst
achieves
dual‐functional
evolution
(HER)
UOR
performance
comparable
to
reported
noble
metal/non‐noble
catalysts,
both
achieving
high
current
densities
approaching
1000
mA
cm
−2
.
Density
functional
theory
(DFT)
calculations,
combined
spectroscopic
characterizations
record
dynamic
of
oxygen
(OER)
processes,
reveal
novel
energetically
favorable
pathway
proposed,
initiates
directly
without
involve
participation
reconstructed
NiOOH
resulting
OER.
combination
in‐line
gas
chromatography,
ion
chromatography
analysis
indicates
Faradaic
efficiency
(FE)
2
higher
(34%)
at
lower
(<100
),
FE
NO
remains
below
20%
in
long‐term
electrolysis.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: July 14, 2024
Abstract
Electrochemical
urea
oxidation
offers
a
sustainable
avenue
for
H
2
production
and
wastewater
denitrification
within
the
water-energy
nexus;
however,
its
wide
application
is
limited
by
detrimental
cyanate
or
nitrite
instead
of
innocuous
N
.
Herein
we
demonstrate
that
atomically
isolated
asymmetric
Ni–O–Ti
sites
on
Ti
foam
anode
achieve
selectivity
99%,
surpassing
connected
symmetric
Ni–O–Ni
counterparts
in
documented
Ni-based
electrocatalysts
with
below
55%,
also
deliver
evolution
rate
22.0
mL
h
–1
when
coupled
to
Pt
counter
cathode
under
213
mA
cm
–2
at
1.40
V
RHE
These
sites,
featuring
oxygenophilic
adjacent
Ni,
favor
interaction
carbonyl
over
amino
groups
urea,
thus
preventing
premature
resonant
C⎓N
bond
breakage
before
intramolecular
N–N
coupling
towards
evolution.
A
prototype
device
powered
commercial
Si
photovoltaic
cell
further
developed
solar-powered
on-site
urine
processing
decentralized
production.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(36)
Published: May 6, 2024
Abstract
The
electrooxidation
of
urea
holds
great
potential
for
converting
from
wastewater
into
hydrogen,
contributing
to
environmental
protection
and
sustainable
energy
production.
This
necessitates
the
development
highly
efficient
stable
catalysts
oxidation
reaction
(UOR).
In
this
study,
a
NiCoCr‐LDH/NF
(nickel‐cobalt‐chromium
layered
double
hydroxide/nickel
foam)
electrode
is
successfully
synthesized
via
simple
hydrothermal
method,
demonstrating
excellent
electrocatalytic
performance
with
low
work
1.38
V
at
high
current
density
100
mA
cm
−2
.
situ,
Raman
spectra
analysis
revealed
that
incorporation
chromium
(Cr)
facilitated
generation
active
γ‐NiOOH
species
catalyst
reconstruction.
Density
functional
theory
(DFT)
simulations
confirmed
lower
formation
due
weakened
interaction
O─H
bonds
because
narrow
range
hybridization
between
O‐2p
z
orbitals
H‐1s
orbitals.
introduction
Cr
also
improved
adsorption
molecules
its
intermediates,
thereby
enhancing
overall
activity
UOR.
With
performance,
unique
electronic
states,
coordination
structures,
showcases
practical
applications
in
field
catalysis.
Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(37)
Published: March 12, 2024
Abstract
Nickel
has
risen
as
a
viable
and
cost‐effective
substitute
to
noble
metal
catalysts
in
electrochemical
hydrogen
production,
yet
developing
air‐stable
highly
efficient
nanostructured
nickel‐based
remains
significant
challenge.
Here
facile
method
for
creating
nanoporous
Ni/NiO
heterostructure
electrocatalytic
production
is
reported.
The
protocol
employs
chemical
dealloying
establish
3D
bicontinuous
structure,
followed
by
controlled
oxidation
process
situ
generate
uniform
NiO
surface
layers
atop
the
metallic
nickel
matrix
self‐limiting
manner.
This
approach
not
only
yields
active
through
simple
procedure
but
also
effectively
mitigates
auto‐ignition
issue
inherent
nanosized
Ni,
thereby
enhancing
air
stability.
By
leveraging
synergistic
interaction
between
Ni‐NiO
co‐catalysis
improved
access
intensified
sites,
electrocatalysts
exhibit
superior
performance
evolution
reaction,
markedly
outperforming
Pt/C
catalysts,
high
stability
alkaline
environments.
exploration
of
transition
metals
opens
new
avenues
advanced
metal/oxide
diverse
energy
applications.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(22), P. 10628 - 10636
Published: Jan. 1, 2024
For
the
electroreduction
of
carbon
dioxide
into
high
value-added
chemicals,
highly
active
and
selective
catalysts
are
crucial,
metallic
silver
is
one
most
intriguing
candidate
materials
available
at
a
reasonable
cost.
Herein,
through
novel
two-step
operation
Ag
paste/SBA-15
coating
HF
etching,
porous
films
on
commercial
paper
with
waterproofer
(p-Ag/CP)
could
be
easily
fabricated
large
scale
as
efficient
reduction
reaction
(CO
