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.
Advanced Materials,
Год журнала:
2019,
Номер
32(3)
Опубликована: Апрель 1, 2019
Abstract
Electrochemical
water
splitting
is
a
promising
technology
for
sustainable
conversion,
storage,
and
transport
of
hydrogen
energy.
Searching
earth‐abundant
hydrogen/oxygen
evolution
reaction
(HER/OER)
electrocatalysts
with
high
activity
durability
to
replace
noble‐metal‐based
catalysts
plays
paramount
importance
in
the
scalable
application
electrolysis.
A
freestanding
electrode
architecture
highly
attractive
as
compared
conventional
coated
powdery
form
because
enhanced
kinetics
stability.
Herein,
recent
progress
developing
transition‐metal‐based
HER/OER
electrocatalytic
materials
reviewed
selected
examples
chalcogenides,
phosphides,
carbides,
nitrides,
alloys,
phosphates,
oxides,
hydroxides,
oxyhydroxides.
Focusing
on
self‐supported
electrodes,
latest
advances
their
structural
design,
controllable
synthesis,
mechanistic
understanding,
strategies
performance
enhancement
are
presented.
Remaining
challenges
future
perspectives
further
development
also
discussed.
Advanced Materials,
Год журнала:
2021,
Номер
33(31)
Опубликована: Июнь 12, 2021
Abstract
Hydrogen
economy
has
emerged
as
a
very
promising
alternative
to
the
current
hydrocarbon
economy,
which
involves
process
of
harvesting
renewable
energy
split
water
into
hydrogen
and
oxygen
then
further
utilization
clean
fuel.
The
production
by
electrolysis
is
an
essential
prerequisite
with
zero
carbon
emission.
Among
various
technologies,
alkaline
splitting
been
commercialized
for
more
than
100
years,
representing
most
mature
economic
technology.
Here,
historic
development
overviewed,
several
critical
electrochemical
parameters
are
discussed.
After
that,
advanced
nonprecious
metal
electrocatalysts
that
recently
negotiating
evolution
reaction
(OER)
(HER)
discussed,
including
transition
oxides,
(oxy)hydroxides,
chalcogenides,
phosphides,
nitrides
OER,
well
alloys,
carbides
HER.
In
this
section,
particular
attention
paid
catalyst
synthesis,
activity
stability
challenges,
performance
improvement,
industry‐relevant
developments.
Some
recent
works
about
scaled‐up
novel
electrode
designs,
seawater
also
spotlighted.
Finally,
outlook
on
future
challenges
opportunities
offered,
potential
directions
speculated.
Advanced Materials,
Год журнала:
2015,
Номер
28(10), С. 1917 - 1933
Опубликована: Дек. 16, 2015
Hydrogen
(H
2
)
is
one
of
the
most
important
clean
and
renewable
energy
sources
for
future
sustainability.
Nowadays,
photocatalytic
electrocatalytic
hydrogen
evolution
reactions
(HERs)
from
water
splitting
are
considered
as
two
efficient
methods
to
convert
sustainable
carrier,
H
.
Catalysts
based
on
transition
metal
dichalcogenides
(TMDs)
recognized
greatly
promising
substitutes
noble‐metal‐based
catalysts
HER.
The
activities
TMD
nanosheets
HER
can
be
further
improved
after
hybridization
with
many
kinds
nanomaterials,
such
metals,
oxides,
sulfides,
carbon
materials,
through
different
including
in
situ
reduction
method,
hot‐injection
heating‐up
hydro(solvo)thermal
chemical
vapor
deposition
(CVD),
thermal
annealing.
Here,
recent
progress
HERs
using
2D
TMD‐based
composites
discussed.
Advanced Materials,
Год журнала:
2017,
Номер
29(19)
Опубликована: Март 15, 2017
The
search
for
highly
efficient
and
low‐cost
catalysts
is
one
of
the
main
driving
forces
in
catalytic
chemistry.
Current
strategies
catalyst
design
focus
on
increasing
number
activity
local
sites,
such
as
edge
sites
molybdenum
disulfides
hydrogen
evolution
reaction
(HER).
Here,
study
proposes
demonstrates
a
different
principle
that
goes
beyond
site
optimization
by
utilizing
topological
electronic
states
to
spur
activity.
For
HER,
excellent
have
been
found
among
transition‐metal
monopnictides—NbP,
TaP,
NbAs,
TaAs—which
are
recently
discovered
be
Weyl
semimetals.
Here
shows
combination
robust
surface
large
room
temperature
carrier
mobility,
both
which
originate
from
bulk
Dirac
bands
semimetal,
recipe
high
HER
catalysts.
This
approach
has
potential
go
graphene
based
composite
photocatalysts
where
simply
provides
mobility
medium
without
any
active
these
materials.
Thus,
work
guiding
discovery
novel
emerging
field
Hydrogen
evolution
reaction
(HER)
in
alkaline
medium
is
currently
a
point
of
focus
for
sustainable
development
hydrogen
as
an
alternative
clean
fuel
various
energy
systems,
but
suffers
from
sluggish
kinetics
due
to
additional
water
dissociation
step.
So,
the
state-of-the-art
catalysts
performing
well
acidic
media
lose
considerable
catalytic
performance
media.
This
review
summarizes
recent
developments
overcome
issues
HER,
synthesis
materials
with
modified
morphologies,
and
electronic
structures
tune
active
sites
their
applications
efficient
HER.
It
first
explains
fundamentals
electrochemistry
HER
then
outlines
requirements
stable
catalyst
medium.
The
challenges
limitation
electrocatalysts
along
prospective
solutions
are
highlighted.
further
describes
methods
advanced
nanostructures
based
on
carbon,
noble,
inexpensive
metals
heterogeneous
structures.
These
provide
some
ideal
systems
analyzing
role
structure
synergy
catalysis.
At
end,
it
provides
concluding
remarks
future
perspectives
that
can
be
helpful
tuning
active-sites
improved
electrochemical
efficiencies
future.
Journal of Materials Chemistry A,
Год журнала:
2016,
Номер
4(45), С. 17587 - 17603
Опубликована: Янв. 1, 2016
This
review
summarizes
recent
research
progress
and
perspectives
on
noble-metal-free
bifunctional
heterogeneous
electrocatalysts
towards
hydrogen
oxygen
evolution
reactions
in
overall
water
splitting.
Angewandte Chemie International Edition,
Год журнала:
2017,
Номер
56(45), С. 13944 - 13960
Опубликована: Май 24, 2017
Abstract
Recent
years
have
witnessed
a
dramatic
increase
in
the
production
of
sustainable
and
renewable
energy.
However,
electrochemical
performances
various
systems
are
limited,
there
is
an
intensive
search
for
highly
efficient
electrocatalysts
by
more
rational
control
over
size,
shape,
composition,
structure.
Of
particular
interest
studies
on
single‐atom
catalysts
(SACs),
which
sparked
new
interests
electrocatalysis
because
their
high
catalytic
activity,
stability,
selectivity,
100
%
atom
utilization.
In
this
Review,
we
introduce
innovative
syntheses
characterization
techniques
SACs,
with
focus
applications
oxygen
reduction/evolution
reaction,
hydrogen
evolution
hydrocarbon
conversion
reactions
fuel
cells
(electrooxidation
methanol,
ethanol,
formic
acid).
The
electrocatalytic
performance
further
considered
at
atomic
level
underlying
mechanisms
discussed.
ultimate
goal
tailoring
single
atoms
applications.
Recently,
great
attention
has
been
paid
to
fabricating
direct
Z‐scheme
photocatalysts
for
solar‐energy
conversion
due
their
effectiveness
spatially
separating
photogenerated
electron–hole
pairs
and
optimizing
the
reduction
oxidation
ability
of
photocatalytic
system.
Here,
historical
development
system
is
summarized,
from
its
first
generation
(liquid‐phase
system)
current
third
(direct
photocatalyst).
The
advantages
are
also
discussed
against
predecessors,
including
conventional
heterojunction,
liquid‐phase
Z‐scheme,
all‐solid‐state
(ASS)
systems.
Furthermore,
characterization
methods
applications
summarized.
Finally,
conclusions
perspectives
on
challenges
this
emerging
research
direction
presented.
Insights
up‐to‐date
information
provided
give
scientific
community
fully
explore
potential
in
renewable
energy
production
environmental
remediation.
