Advanced Functional Materials,
Год журнала:
2020,
Номер
30(15)
Опубликована: Фев. 16, 2020
The
development
of
low-cost,
high-efficiency,
and
robust
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
urgently
needed
to
address
energy
crisis.
In
recent
years,
non-noble-metal-based
OER
have
attracted
tremendous
research
attention.
Beginning
with
introduction
some
evaluation
criteria
OER,
current
are
reviewed,
classification
metals/alloys,
oxides,
hydroxides,
chalcogenides,
phosphides,
phosphates/borates,
other
compounds,
along
their
advantages
shortcomings.
knowledge
mechanisms
practical
applications
also
summarized
developing
more
efficient
electrocatalysts.
Finally,
states,
challenges,
perspectives
discussed.
Chemical Reviews,
Год журнала:
2019,
Номер
120(2), С. 526 - 622
Опубликована: Март 22, 2019
Improving
the
knowledge
of
relationship
between
structure
and
properties
is
fundamental
in
catalysis.
Recently,
researchers
have
developed
a
variety
well-controlled
methods
to
synthesize
atomically
precise
metal
nanoclusters
(NCs).
NCs
shown
high
catalytic
activity
unique
selectivity
many
reactions,
which
are
related
their
ultrasmall
size,
abundant
unsaturated
active
sites,
electronic
different
from
that
traditional
nanoparticles
(NPs).
More
importantly,
because
definite
monodispersity,
they
used
as
model
catalysts
reveal
correlation
catalyst
performance
at
atomic
scale.
Therefore,
this
review
aims
summarize
recent
progress
on
catalysis
provide
potential
theoretical
guidance
for
rational
design
high-performance
catalysts.
First
brief
summary
synthetic
strategies
characterization
provided.
Then
primary
focus
review-the
role
catalysis-is
illustrated
experimental
perspectives,
particularly
electrocatalysis,
photocatalysis,
photoelectric
conversion,
organic
reactions.
Finally,
main
challenges
opportunities
examined
deep
understanding
key
steps
with
goal
expanding
application
range
NCs.
Nature Communications,
Год журнала:
2017,
Номер
8(1)
Опубликована: Май 17, 2017
Abstract
Various
platinum-free
electrocatalysts
have
been
explored
for
hydrogen
evolution
reaction
in
acidic
solutions.
However,
economical
water-alkali
electrolysers,
sluggish
water
dissociation
kinetics
(Volmer
step)
on
results
poor
hydrogen-production
activities.
Here
we
report
a
MoNi
4
electrocatalyst
supported
by
MoO
2
cuboids
nickel
foam
(MoNi
/MoO
@Ni),
which
is
constructed
controlling
the
outward
diffusion
of
atoms
annealing
precursor
NiMoO
foam.
Experimental
and
theoretical
confirm
that
rapid
Tafel-step-decided
proceeds
electrocatalyst.
As
result,
exhibits
zero
onset
overpotential,
an
overpotential
15
mV
at
10
mA
cm
−2
low
Tafel
slope
30
per
decade
1
M
potassium
hydroxide
electrolyte,
are
comparable
to
platinum
superior
those
state-of-the-art
electrocatalysts.
Benefiting
from
its
scalable
preparation
stability,
promising
practical
electrolysers.
ACS Catalysis,
Год журнала:
2017,
Номер
7(4), С. 2357 - 2366
Опубликована: Фев. 16, 2017
Exploring
noble-metal-free
electrocatalysts
with
high
efficiency
for
both
the
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER)
holds
promise
advancing
production
of
H2
fuel
through
water
splitting.
Herein,
one-pot
synthesis
was
introduced
MoS2–Ni3S2
heteronanorods
supported
by
Ni
foam
(MoS2–Ni3S2
HNRs/NF),
in
which
Ni3S2
nanorods
were
hierarchically
integrated
MoS2
nanosheets.
The
hierarchical
allow
not
only
good
exposure
highly
active
heterointerfaces
but
also
facilitated
charge
transport
along
anchored
on
conducting
nickel
foam,
accomplishing
promoted
kinetics
activity
HER,
OER,
overall
optimal
HNRs/NF
presents
low
overpotentials
(η10)
98
249
mV
to
reach
a
current
density
10
mA
cm–2
1.0
M
KOH
HER
respectively.
Assembled
as
an
electrolyzer
splitting,
such
show
quite
cell
voltage
1.50
V
at
remarkable
stability
more
than
48
h,
are
among
best
values
electrocatalysts.
This
work
elucidates
rational
design
heterostructures
efficient
electrocatalysts,
shedding
some
light
development
functional
materials
energy
chemistry.
Nature Communications,
Год журнала:
2018,
Номер
9(1)
Опубликована: Июнь 25, 2018
Water
electrolysis
is
an
advanced
energy
conversion
technology
to
produce
hydrogen
as
a
clean
and
sustainable
chemical
fuel,
which
potentially
stores
the
abundant
but
intermittent
renewable
sources
scalably.
Since
overall
water
splitting
uphill
reaction
in
low
efficiency,
innovative
breakthroughs
are
desirable
greatly
improve
efficiency
by
rationally
designing
non-precious
metal-based
robust
bifunctional
catalysts
for
promoting
both
cathodic
evolution
anodic
oxygen
reactions.
We
report
hybrid
catalyst
constructed
iron
dinickel
phosphides
on
nickel
foams
that
drives
reactions
well
base,
thus
substantially
expedites
at
10
mA
cm-2
with
1.42
V,
outperforms
integrated
iridium
(IV)
oxide
platinum
couple
(1.57
V),
among
best
activities
currently.
Especially,
it
delivers
500
1.72
V
without
decay
even
after
durability
test
40
h,
providing
great
potential
large-scale
applications.
Advanced Functional Materials,
Год журнала:
2020,
Номер
30(15)
Опубликована: Фев. 16, 2020
The
development
of
low-cost,
high-efficiency,
and
robust
electrocatalysts
for
the
oxygen
evolution
reaction
(OER)
is
urgently
needed
to
address
energy
crisis.
In
recent
years,
non-noble-metal-based
OER
have
attracted
tremendous
research
attention.
Beginning
with
introduction
some
evaluation
criteria
OER,
current
are
reviewed,
classification
metals/alloys,
oxides,
hydroxides,
chalcogenides,
phosphides,
phosphates/borates,
other
compounds,
along
their
advantages
shortcomings.
knowledge
mechanisms
practical
applications
also
summarized
developing
more
efficient
electrocatalysts.
Finally,
states,
challenges,
perspectives
discussed.
