Small,
Journal Year:
2017,
Volume and Issue:
13(21)
Published: April 12, 2017
Nanostructured
metal‐contained
catalysts
are
one
of
the
most
widely
used
types
applied
to
facilitate
some
sluggish
electrochemical
reactions.
However,
high
activity
these
cannot
be
sustained
over
a
variety
pH
ranges.
In
an
effort
develop
highly
active
and
stable
catalysts,
various
approaches
have
been
pursued
with
emphasis
on
metal
particle
size
reduction
doping
carbon‐based
supports.
These
techniques
enhances
metal‐support
interactions,
originating
from
chemical
bonding
effect
between
dopants
carbon
support
associated
interface,
as
well
charge
transfer
atomic
species
framework.
This
provides
opportunity
tune
well‐defined
centers
optimize
their
activity,
selectivity
stability
this
type
(electro)catalyst.
Herein,
recent
advances
in
synthesis
strategies,
characterization
catalytic
performance
single
atom
nanomaterials
highlighted
attempts
understand
electronic
structure
spatial
arrangement
individual
atoms
interaction
Applications
new
materials
wide
range
potential
electrocatalytic
processes
renewable
energy
conversion
systems
also
discussed
future
directions
field
research.
Organometallics,
Journal Year:
2017,
Volume and Issue:
36(21), P. 4071 - 4090
Published: Nov. 13, 2017
Organometallic
reagents
and
metal
catalysts
are
used
ubiquitously
in
academia
industry.
Not
surprisingly,
the
biological
activity
environmental
danger
of
compounds
have
become
topics
outstanding
importance.
In
spite
rapid
development
toxicology
during
last
decades,
several
common
historically
established
"beliefs"
still
frequently
circulating
organometallic
community.
this
Tutorial,
we
discuss
existing
opinions
concerning
(1)
possibilities
toxicity
measurements,
(2)
high
toxicities
heavy-metal
compounds,
(3)
correlation
between
structure
a
compound
its
toxicity,
(4)
effect
direct/indirect
contacts
with
(5)
dangers
nanoparticles.
Basic
concepts
studies
known
data
described
Tutorial
step
by
upon
discussion
these
issues.
The
main
goal
is
to
demonstrate
that
cannot
be
regarded
as
constant
property,
since
it
depends
on
oxidation
state,
ligands,
solubility,
morphology
particles,
properties
environment,
other
factors.
As
far
such
chemically
labile
species
concerned,
nature
effects
should
not
assumed
or
taken
for
granted;
indeed,
reliable
conclusions
made
without
dedicated
measurements.
Science Advances,
Journal Year:
2018,
Volume and Issue:
4(1)
Published: Jan. 5, 2018
Constructing
atomically
dispersed
platinum
(Pt)
electrocatalysts
is
essential
to
build
high-performance
and
cost-effective
electrochemical
water-splitting
systems.
We
present
a
novel
strategy
realize
the
traction
stabilization
of
isolated
Pt
atoms
in
nitrogen-containing
porous
carbon
matrix
(Pt@PCM).
In
comparison
with
commercial
Pt/C
catalyst
(20
weight
%),
as-prepared
Pt@PCM
exhibits
significantly
boosted
mass
activity
(up
25
times)
for
hydrogen
evolution
reaction.
Results
extended
x-ray
absorption
fine
structure
investigation
density
functional
theory
calculation
suggest
that
active
sites
are
associated
lattice-confined
centers
activated
(C)/nitrogen
(N)
at
adjacency
centers.
This
may
provide
insights
into
constructing
highly
efficient
single-atom
catalysts
different
energy-related
applications.
Electrochemical Energy Reviews,
Journal Year:
2019,
Volume and Issue:
2(4), P. 539 - 573
Published: Aug. 28, 2019
Single-atom
catalysis
is
a
powerful
and
attractive
technique
with
exceptional
performance,
drastic
cost
reduction
notable
catalytic
activity
selectivity.
In
single-atom
catalysis,
supported
catalysts
contain
isolated
individual
atoms
dispersed
on,
and/or
coordinated
with,
surface
of
appropriate
supports,
which
not
only
maximize
the
atomic
efficiency
metals,
but
also
provide
an
alternative
strategy
to
tune
selectivity
reactions.
This
review
will
highlight
attributes
summarize
most
recent
advancements
in
focus
on
design
highly
active
stable
single
atoms.
addition,
new
research
directions
future
trends
be
discussed.
Chemical Reviews,
Journal Year:
2016,
Volume and Issue:
116(23), P. 14456 - 14492
Published: Nov. 28, 2016
We
summarize
here
the
research
advances
on
reactivity
of
metal
clusters.
After
a
simple
introduction
apparatuses
used
for
gas-phase
cluster
reactions,
we
focus
clusters
with
various
polar
and
nonpolar
molecules
in
gas
phase
illustrate
how
elementary
reactions
proceed
one-step
at
time
under
combination
geometric
electronic
reorganization.
The
topics
discussed
this
study
include
chemical
adsorption,
addition
reaction,
cleavage
bonds,
etching
effect,
spin
harpoon
mechanism,
complementary
active
sites
(CAS)
among
others.
Insights
into
not
only
facilitate
better
understanding
fundamentals
condensed-phase
chemistry
but
also
provide
way
to
dissect
stability
monolayer-protected
synthesized
via
wet
chemistry.
Advanced Materials,
Journal Year:
2018,
Volume and Issue:
30(15)
Published: Feb. 12, 2018
Research
on
2D
nanomaterials
is
rising
to
an
unprecedented
height
and
will
continue
remain
a
very
important
topic
in
materials
science.
In
parallel
with
the
discovery
of
new
candidate
exploration
their
unique
characteristics,
there
are
intensive
interests
rationally
control
tune
properties
predictable
manner.
Considerable
attention
focused
modifying
these
structurally
or
engineering
them
into
designed
architectures
meet
requirements
for
specific
applications.
Recent
advances
such
structural
strategies
have
demonstrated
ability
overcome
current
material
limitations,
showing
great
promise
promoting
device
performance
level
many
energy-related
Existing
forms,
can
be
categorized
based
how
they
intrinsically
extrinsically
alter
pristine
structure.
Achieved
through
various
synthetic
routes
practiced
range
different
systems,
usually
share
common
descriptors
that
predestine
effective
certain
circumstances.
Therefore,
understanding
underlying
mechanism
provide
fundamental
insights
design
property
tailoring
critical
importance.
Here,
most
recent
development
significant
effects
energy
storage
catalysis
technologies
addressed.
Science Advances,
Journal Year:
2020,
Volume and Issue:
6(23)
Published: June 5, 2020
Single-atom
catalysts
(SACs)
maximize
the
utility
efficiency
of
metal
atoms
and
offer
great
potential
for
hydrogen
evolution
reaction
(HER).
Bimetal
atom
are
an
appealing
strategy
in
virtue
synergistic
interaction
neighboring
atoms,
which
can
further
improve
intrinsic
HER
activity
beyond
SACs.
However,
rational
design
these
systems
remains
conceptually
challenging
requires
in-depth
research
both
experimentally
theoretically.
Here,
we
develop
a
dual-atom
catalyst
(DAC)
consisting
O-coordinated
W-Mo
heterodimer
embedded
N-doped
graphene
(W1Mo1-NG),
is
synthesized
by
controllable
self-assembly
nitridation
processes.
In
W1Mo1-NG,
O-bridged
anchored
NG
vacancies
through
oxygen
with
W─O─Mo─O─C
configuration,
resulting
stable
finely
distribution.
The
W1Mo1-NG
DAC
enables
Pt-like
ultrahigh
stability
pH-universal
electrolyte.
electron
delocalization
configuration
provides
optimal
adsorption
strength
H
boosts
kinetics,
thereby
notably
promoting
activity.
ACS Catalysis,
Journal Year:
2020,
Volume and Issue:
10(19), P. 11011 - 11045
Published: Aug. 31, 2020
Different
from
isolated
metal
atoms
and
large
nanoparticles
(NPs),
supported
clusters
(SMCs)
possess
distinct
geometric
electronic
structures
thus
exhibit
enhanced
activity
designated
selectivity
in
catalysis.
So
far,
with
the
development
synthetic
methodologies
characterization
techniques,
SMCs
fine
could
be
constructed
well-defined
at
atomic
level.
In
addition,
based
on
computational
modeling
of
SMCs,
theoretical
calculations
corroborated
well
experimental
results,
providing
in-depth
insights
into
structure–property
relationship
for
this
Review,
classic
strategies
key
techniques
are
summarized.
Subsequently,
applications
important
catalytic
reactions
recent
studies
discussed,
including
aerobic
oxidation,
hydrogenation,
dehydrogenation,
water–gas
shift
(WGS)
reaction,
photocatalytic
reactions.
particular,
importance
cluster
size-effect
metal–support
interactions
determining
performance
is
highlighted.
Lastly,
challenges
prospects
SMCs'
catalysis
illustrated.
Nature Communications,
Journal Year:
2018,
Volume and Issue:
9(1)
Published: Sept. 28, 2018
The
low-cost
room-temperature
sodium-sulfur
battery
system
is
arousing
extensive
interest
owing
to
its
promise
for
large-scale
applications.
Although
significant
efforts
have
been
made,
resolving
low
sulfur
reaction
activity
and
severe
polysulfide
dissolution
remains
challenging.
Here,
a
host
comprised
of
atomic
cobalt-decorated
hollow
carbon
nanospheres
synthesized
enhance
reactivity
electrocatalytically
reduce
into
the
final
product,
sodium
sulfide.
constructed
cathode
delivers
an
initial
reversible
capacity
1081
mA
h
g-1
with
64.7%
utilization
rate;
significantly,
cell
retained
high
508
at
100
after
600
cycles.
An
excellent
rate
capability
achieved
average
220.3
current
density
5
A
g-1.
Moreover,
electrocatalytic
effects
cobalt
are
clearly
evidenced
by
operando
Raman
spectroscopy,
synchrotron
X-ray
diffraction,
functional
theory.
