Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Фев. 29, 2024
Abstract
The
exploration
of
sustainable
energy
utilization
requires
the
implementation
advanced
electrochemical
devices
for
efficient
conversion
and
storage,
which
are
enabled
by
usage
cost-effective,
high-performance
electrocatalysts.
Currently,
heterogeneous
atomically
dispersed
catalysts
considered
as
potential
candidates
a
wide
range
applications.
Compared
to
conventional
catalysts,
metal
atoms
in
carbon-based
have
more
unsaturated
coordination
sites,
quantum
size
effect,
strong
metal–support
interactions,
resulting
exceptional
catalytic
activity.
Of
these,
dual-atomic
(DACs)
attracted
extensive
attention
due
additional
synergistic
effect
between
two
adjacent
atoms.
DACs
advantages
full
active
site
exposure,
high
selectivity,
theoretical
100%
atom
utilization,
ability
break
scaling
relationship
adsorption
free
on
sites.
In
this
review,
we
summarize
recent
research
advancement
DACs,
includes
(1)
comprehensive
understanding
synergy
atomic
pairs;
(2)
synthesis
DACs;
(3)
characterization
methods,
especially
aberration-corrected
scanning
transmission
electron
microscopy
synchrotron
spectroscopy;
(4)
energy-related
last
part
focuses
great
catalysis
small
molecules,
such
oxygen
reduction
reaction,
CO
2
hydrogen
evolution
N
reaction.
future
challenges
opportunities
also
raised
prospective
section.
Journal of the American Chemical Society,
Год журнала:
2023,
Номер
145(23), С. 12928 - 12934
Опубликована: Июнь 2, 2023
Selective
oxidation
of
methane
to
methanol
by
dioxygen
(O2)
is
an
appealing
route
for
upgrading
abundant
resource
and
represents
one
the
most
challenging
reactions
in
chemistry
due
overwhelmingly
higher
reactivity
product
(methanol)
versus
reactant
(methane).
Here,
we
report
that
gold
nanoparticles
dispersed
on
mordenite
efficiently
catalyze
selective
molecular
oxygen
aqueous
medium
presence
carbon
monoxide.
The
productivity
reaches
1300
μmol
gcat-1
h-1
or
280
mmol
gAu-1
with
75%
selectivity
at
150
°C,
outperforming
catalysts
reported
under
comparable
conditions.
Both
hydroxyl
radicals
hydroperoxide
species
participate
activation
conversion
methane,
while
it
shown
lower
affinity
mainly
accounts
selectivity.
Nano-Micro Letters,
Год журнала:
2024,
Номер
16(1)
Опубликована: Фев. 29, 2024
Abstract
The
exploration
of
sustainable
energy
utilization
requires
the
implementation
advanced
electrochemical
devices
for
efficient
conversion
and
storage,
which
are
enabled
by
usage
cost-effective,
high-performance
electrocatalysts.
Currently,
heterogeneous
atomically
dispersed
catalysts
considered
as
potential
candidates
a
wide
range
applications.
Compared
to
conventional
catalysts,
metal
atoms
in
carbon-based
have
more
unsaturated
coordination
sites,
quantum
size
effect,
strong
metal–support
interactions,
resulting
exceptional
catalytic
activity.
Of
these,
dual-atomic
(DACs)
attracted
extensive
attention
due
additional
synergistic
effect
between
two
adjacent
atoms.
DACs
advantages
full
active
site
exposure,
high
selectivity,
theoretical
100%
atom
utilization,
ability
break
scaling
relationship
adsorption
free
on
sites.
In
this
review,
we
summarize
recent
research
advancement
DACs,
includes
(1)
comprehensive
understanding
synergy
atomic
pairs;
(2)
synthesis
DACs;
(3)
characterization
methods,
especially
aberration-corrected
scanning
transmission
electron
microscopy
synchrotron
spectroscopy;
(4)
energy-related
last
part
focuses
great
catalysis
small
molecules,
such
oxygen
reduction
reaction,
CO
2
hydrogen
evolution
N
reaction.
future
challenges
opportunities
also
raised
prospective
section.
