Nano Energy,
Journal Year:
2024,
Volume and Issue:
129, P. 109997 - 109997
Published: July 14, 2024
Hydrogen
holds
promise
for
slashing
emissions
in
energy
and
transportation
due
to
its
high
density
clean
combustion.
The
transition
hydrogen
fuel
encompasses
various
vehicles,
including
cars,
buses,
ships,
aircraft.
Proton
batteries
emerge
as
contenders
heavy-duty
leveraging
hydrogen's
potential
without
However,
realizing
stable,
cost-effective
generation
storage
on
an
industrial
scale
remains
a
formidable
engineering
hurdle.
In
this
review,
the
focus
is
of
two-dimensional
(2D)
materials
address
challenge.
These
offer
prospect
cost-efficient,
leak-free
even
under
atmospheric
pressure.
article
explores
recent
advancements
utilizing
2D
across
spectrum,
spanning
production,
storage,
conversion,
electrochemical
properties
relevant
proton
batteries.
Additionally,
it
delves
into
fundamental
aspects
crucial
applications
using
materials.
Noteworthy
attention
given
recently
developed
composite
exhibiting
exceptional
storage.
review
underscores
future
outlook
these
terms
large-scale
production
practical
implementation,
highlighting
their
revolutionize
technologies
renewable
sustainable
applications.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: June 24, 2023
Designing
Pt-based
electrocatalysts
with
high
catalytic
activity
and
CO
tolerance
is
challenging
but
extremely
desirable
for
alkaline
hydrogen
oxidation
reaction.
Herein
we
report
the
design
of
a
series
single-atom
lanthanide
(La,
Ce,
Pr,
Nd,
Lu)-embedded
ultrasmall
Pt
nanoclusters
efficient
electro-oxidation
catalysis
based
on
vapor
filling
spatially
confined
reduction/growth
metal
species.
Mechanism
studies
reveal
that
oxophilic
species
in
can
serve
as
Lewis
acid
site
selective
OH-
adsorption
regulate
binding
strength
intermediates
sites,
which
promotes
kinetics
by
accelerating
combination
*H/*CO
thermodynamics,
endowing
electrocatalyst
up
to
14.3-times
higher
mass
than
commercial
Pt/C
enhanced
tolerance.
This
work
may
shed
light
nanocluster-based
energy
conversion.
Proceedings of the National Academy of Sciences,
Journal Year:
2023,
Volume and Issue:
120(32)
Published: July 31, 2023
Electrochemical
nitrate
reduction
reaction
(NO
3
RR)
to
ammonia
has
been
regarded
as
a
promising
strategy
balance
the
global
nitrogen
cycle.
However,
it
still
suffers
from
poor
Faradaic
efficiency
(FE)
and
limited
yield
rate
for
production
on
heterogeneous
electrocatalysts,
especially
in
neutral
solutions.
Herein,
we
report
one-pot
synthesis
of
ultrathin
nanosheet-assembled
RuFe
nanoflowers
with
low-coordinated
Ru
sites
enhance
NO
RR
performances
electrolyte.
Significantly,
exhibit
outstanding
FE
92.9%
38.68
mg
h
−1
cat
(64.47
)
at
−0.30
−0.65
V
(vs.
reversible
hydrogen
electrode),
respectively.
Experimental
studies
theoretical
calculations
reveal
that
are
highly
electroactive
an
increased
d-band
center
guarantee
efficient
electron
transfer,
leading
low
energy
barriers
reduction.
The
demonstration
rechargeable
zinc-nitrate
batteries
large-specific
capacity
using
indicates
their
great
potential
next-generation
electrochemical
systems.
Advanced Materials,
Journal Year:
2024,
Volume and Issue:
36(14)
Published: Jan. 26, 2024
Abstract
Electrocatalytic
nitrate
reduction
reaction
(NO
3
RR)
toward
ammonia
synthesis
is
recognized
as
a
sustainable
strategy
to
balance
the
global
nitrogen
cycle.
However,
it
still
remains
great
challenge
achieve
highly
efficient
production
due
complex
proton‐coupled
electron
transfer
process
in
NO
RR.
Here,
controlled
of
RuMo
alloy
nanoflowers
(NFs)
with
unconventional
face‐centered
cubic
(fcc)
phase
and
hexagonal
close‐packed/fcc
heterophase
for
RR
reported.
Significantly,
fcc
NFs
demonstrate
high
Faradaic
efficiency
95.2%
large
yield
rate
32.7
mg
h
−1
cat
at
0
−0.1
V
(vs
reversible
hydrogen
electrode),
respectively.
In
situ
characterizations
theoretical
calculations
have
unraveled
that
possess
highest
d‐band
center
superior
electroactivity,
which
originates
from
strong
Ru─Mo
interactions
intrinsic
activity
phase.
The
optimal
electronic
structures
supply
adsorption
key
intermediates
suppression
competitive
evolution,
further
determines
remarkable
performance.
successful
demonstration
high‐performance
zinc‐nitrate
batteries
suggests
their
substantial
application
potential
electrochemical
energy
systems.
Advanced Materials,
Journal Year:
2023,
Volume and Issue:
35(51)
Published: April 24, 2023
Metal
alloys-structured
electrocatalysts
(MAECs)
have
made
essential
contributions
to
accelerating
the
practical
applications
of
electrocatalytic
devices
in
renewable
energy
systems.
However,
due
complex
atomic
structures,
varied
electronic
states,
and
abundant
supports,
precisely
decoding
metal-metal
interactions
structure-activity
relationships
MAECs
still
confronts
great
challenges,
which
is
critical
direct
future
engineering
optimization
MAECs.
Here,
this
timely
review
comprehensively
summarizes
latest
advances
creating
MAECs,
including
interactions,
coordination
microenvironments,
relationships.
First,
fundamental
classification,
design,
characterization,
structural
reconstruction
are
outlined.
Then,
merits
modulation
strategies
recent
breakthroughs
for
noble
non-noble
metal-structured
thoroughly
discussed,
such
as
solid
solution
alloys,
intermetallic
single-atom
alloys.
Particularly,
unique
insights
into
bond
theoretical
understanding,
operando
techniques
mechanism
disclosure
given.
Thereafter,
current
states
diverse
with
a
focus
on
property-reactivity
relationships,
reaction
pathways,
performance
comparisons
discussed.
Finally,
challenges
perspectives
systematically
It
believed
that
comprehensive
can
offer
substantial
impact
stimulating
widespread
utilization
metal
materials
electrocatalysis.
Advanced Functional Materials,
Journal Year:
2023,
Volume and Issue:
34(7)
Published: Oct. 30, 2023
Abstract
Owing
to
the
Pt‐like
electrocatalytic
capability
and
moderate
price,
Ru‐based
catalysts
are
considered
as
Pt
alternatives
for
electrochemical
water
splitting.
However,
they
demonstrate
limited
catalytic
performance
under
industrial‐level
current
densities.
Herein,
a
novel
electrocatalyst
with
an
extremely
low
amount
(0.85
wt.%)
of
Ru
nanoclusters
anchored
on
Cr‐doped
Fe‐metal–organic
frameworks
(Ru@Cr─FeMOF)
through
robust
Cr─O─Ru
bond
is
presented.
The
study
unveils
that
such
architecture
facilitates
fast
electron
transfer
manipulates
highest
occupied
d
orbital
d‐band
centers
sites,
favoring
both
oxygen
evolution
reaction
(OER)
hydrogen
(HER)
catalysis.
as‐prepared
catalyst
performs
excellent
activity
21
mV@10
mA
cm
−2
HER
230
mV@50
OER
in
alkaline
solution,
realizes
water‐splitting
at
densities
(1.72
V@1000
),
surpassing
state‐of‐the‐art
literatures.
Advanced Energy Materials,
Journal Year:
2023,
Volume and Issue:
13(26)
Published: May 17, 2023
Abstract
The
ability
to
create
highly
active
and
CO‐tolerant
platinum‐free
catalysts
toward
alkaline
hydrogen
oxidation
reaction
(HOR)
represents
a
significant
endeavor
enable
commercialization
of
fuel
cells.
This,
however,
remains
grand
challenge.
Herein,
robust
defective‐carbon‐supported
Ru
catalyst
(denoted
as
Ru@C)
is
crafted
achieve
efficient
HOR
in
media
via
delicately
tailoring
interfacial
chemistry
catalyst.
Notably,
the
degree
defects
carbon
support
key
tune
interface
chemistry.
An
integrated
experimental
density
functional
theory
calculations
study
demonstrates
that
favorable
chemical
interaction
between
controlled
by
covalently
bonded
Ru─O─C
redistributes
d
electrons
downshiftsits
d‐band
center,
which
turn
weakens
adsorption
suppresses
4d→CO
2π*
back
donation.
Consequently,
optimized
Ru@C
renders
6.6‐fold
enhancement
mass
activity
(@25
mV)
for
over
conventional
Ru/C
counterpart,
also
outperforms
state‐of‐the‐art
catalysts.
Intriguingly,
can
tolerate
20
000
ppm
CO,
far
exceeding
commercial
Pt/C
PtRu/C
This
work
elucidates
correlation
precisely
tailored
performance,
expected
further
enlighten
design
advanced
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(15), P. 9676 - 9717
Published: July 10, 2023
Multicomponent
metallic
nanomaterials
with
unconventional
phases
show
great
prospects
in
electrochemical
energy
storage
and
conversion,
owing
to
unique
crystal
structures
abundant
structural
effects.
In
this
review,
we
emphasize
the
progress
strain
surface
engineering
of
these
novel
nanomaterials.
We
start
a
brief
introduction
configurations
materials,
based
on
interaction
types
between
components.
Next,
fundamentals
strain,
effect
relevant
phases,
their
formation
mechanisms
are
discussed.
Then
multicomponent
is
demonstrated
from
aspects
morphology
control,
crystallinity
modification,
reconstruction.
Moreover,
applications
strain-
surface-engineered
mainly
electrocatalysis
also
introduced,
where
addition
catalytic
performance,
structure–performance
correlations
highlighted.
Finally,
challenges
opportunities
promising
field
prospected.
Advanced Energy Materials,
Journal Year:
2024,
Volume and Issue:
14(35)
Published: June 25, 2024
Abstract
Investigating
clean
and
sustainable
hydrogen
generation
from
water
splitting
requires
cost‐effective
highly
efficient
electrocatalysts
for
the
evolution
reaction
(HER).
Ruthenium
(Ru)‐based
heterostructure
catalysts
have
emerged
as
promising
alternatives
to
precious
Pt,
offering
significant
potential
overcome
current
bottlenecks.
Recent
advancements
in
Ru‐based
focused
on
achieving
a
balance
between
catalytic
activity
stability.
An
overview
of
these
developments
provides
insights
into
mechanisms
facilitates
development
novel
catalysts.
This
review
begins
with
an
exploration
enhanced
catalysts,
followed
by
critical
summary
synthetic
strategies
employed
fabricate
their
performances
HER.
Attention
is
then
directed
experimental
endeavors
aimed
at
enhancing
HER
performance
Finally,
opportunities
challenges
developing
perspectives
material
design
synthesis
are
discussed.
Through
discussions,
comprehensive
understanding
inspiring
future
research
directions
aim
provide.
Energy & Environmental Science,
Journal Year:
2024,
Volume and Issue:
17(6), P. 2219 - 2227
Published: Jan. 1, 2024
The
three-dimensional
perforated
RhPt
bimetallene
achieves
a
high
exposure
ratio
of
low-coordinated
diatomic
sites,
demonstrating
excellent
activity
and
remarkable
selectivity
for
12-electron
ethanol
oxidation
to
CO
2
.
Nature Communications,
Journal Year:
2024,
Volume and Issue:
15(1)
Published: Feb. 22, 2024
Abstract
While
Ru
owns
superior
catalytic
activity
toward
hydrogen
oxidation
reaction
and
cost
advantages,
the
catalyst
deactivation
under
high
anodic
potential
range
severely
limits
its
to
replace
Pt
benchmark
catalyst.
Unveiling
mechanism
of
correspondingly
developing
protection
strategies
remain
a
great
challenge.
Herein,
we
develop
atomic
Pt-functioned
nanoparticles
with
excellent
anti-deactivation
feature
meanwhile
employ
advanced
operando
characterization
tools
probe
underlying
roles
in
anti-deactivation.
Our
studies
reveal
introduced
single
atoms
effectively
prevent
from
oxidative
passivation
consequently
preserve
interfacial
water
network
for
critical
H*
release
during
catalysis.
Clearly
understanding
nature
Pt-induced
levels
could
provide
valuable
insights
rationally
designing
stable
Ru-based
catalysts
beyond.
