Nano Letters,
Journal Year:
2016,
Volume and Issue:
16(10), P. 6617 - 6621
Published: Sept. 27, 2016
Replacement
of
precious
Pt
with
earth-abundant
electrocatalysts
for
the
hydrogen
evolution
reaction
(HER)
holds
great
promise
clean
energy
devices,
but
development
low-cost
and
durable
HER
catalysts
Pt-like
activity
is
still
a
huge
challenge.
In
this
communication,
we
report
on
self-standing
ternary
FexCo1–xP
nanowire
array
carbon
cloth
(FexCo1–xP/CC)
as
Pt-free
catalyst
activities
being
strongly
related
to
Fe
substitution
ratio.
Electrochemical
tests
show
that
Fe0.5Co0.5P/CC
not
only
possesses
need
overpotential
37
mV
drive
10
mA
cm–2,
outperforming
all
non-noble-metal
reported
date,
demonstrates
superior
long-term
durability
in
0.5
M
H2SO4.
Density
functional
theory
calculations
further
reveal
Co
CoP
leads
more
optimal
free
adsorption
surface.
This
study
offers
us
promising
flexible
monolithic
practical
applications.
ACS Catalysis,
Journal Year:
2016,
Volume and Issue:
6(12), P. 8069 - 8097
Published: Oct. 19, 2016
Increasing
demand
for
finding
eco-friendly
and
everlasting
energy
sources
is
now
totally
depending
on
fuel
cell
technology.
Though
it
an
way
of
producing
the
urgent
requirements,
needs
to
be
improved
make
cheaper
more
eco-friendly.
Although
there
are
several
types
cells,
hydrogen
(H2)
oxygen
(O2)
one
with
zero
carbon
emission
water
as
only
byproduct.
However,
supplying
fuels
in
purest
form
(at
least
H2)
essential
ensure
higher
life
cycles
less
decay
efficiency.
The
current
large-scale
H2
production
largely
dependent
steam
reforming
fossil
fuels,
which
generates
CO2
along
source
going
depleted.
As
alternate,
electrolysis
has
been
given
greater
attention
than
reforming.
reasons
follows:
very
high
purity
produced,
abundant
source,
no
need
high-temperature,
high-pressure
reactors,
so
on.
In
earlier
days,
noble
metals
such
Pt
(cathode)
Ir
Ru
(anode)
were
used
this
purpose.
problems
employing
these
metals,
they
expensive.
review,
we
elaborate
how
group
VIII
3d
metal
sulfide,
selenide,
phosphide
nanomaterials
have
arisen
electrode
materials
(catalysts)
beyond
oxides
hydroxides
same.
We
also
highlight
evaluation
perspective
electrocatalysts
toward
detail.
Advanced Materials,
Journal Year:
2017,
Volume and Issue:
29(14)
Published: Feb. 24, 2017
Hydrogen
has
been
hailed
as
a
clean
and
sustainable
alternative
to
finite
fossil
fuels
in
many
energy
systems.
Water
splitting
is
an
important
method
for
hydrogen
production
high
purity
large
quantities.
To
accelerate
the
evolution
reaction
(HER)
rate,
it
highly
necessary
develop
efficiency
catalysts
select
proper
electrolyte.
Herein,
performances
of
non‐noble
metal‐based
carbon
composites
under
various
pH
values
(acid,
alkaline
neutral
media)
HER
terms
catalyst
synthesis,
structure
molecular
design
are
systematically
discussed.
A
detailed
analysis
structure‐activity‐pH
correlations
process
gives
insight
on
origin
pH‐dependence
HER,
provide
guidance
future
mechanism
studies
composites.
Furthermore,
this
Review
fresh
impetus
rational
high‐performance
noble‐metal‐free
guide
researchers
employ
established
electrocatalysts
water
electrolysis
technologies.
Advanced Materials,
Journal Year:
2019,
Volume and Issue:
32(3)
Published: April 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.
Chemical Reviews,
Journal Year:
2017,
Volume and Issue:
117(15), P. 10121 - 10211
Published: July 26, 2017
Spinels
with
the
formula
of
AB2O4
(where
A
and
B
are
metal
ions)
properties
magnetism,
optics,
electricity,
catalysis
have
taken
significant
roles
in
applications
data
storage,
biotechnology,
electronics,
laser,
sensor,
conversion
reaction,
energy
storage/conversion,
which
largely
depend
on
their
precise
structures
compositions.
In
this
review,
various
spinels
controlled
preparations
oxygen
reduction/evolution
reaction
(ORR/OER)
beyond
summarized.
First,
composition
structure
introduced.
Then,
recent
advances
preparation
solid-,
solution-,
vapor-phase
methods
summarized,
new
particularly
highlighted.
The
physicochemical
characteristics
such
as
compositions,
structures,
morphologies,
defects,
substrates
been
rationally
regulated
through
approaches.
This
regulation
can
yield
improved
ORR/OER
catalytic
activities,
further
accelerate
speed,
prolong
life,
narrow
polarization
fuel
cells,
metal-air
batteries,
water
splitting
devices.
Finally,
magnetic,
optical,
electrical,
OER/ORR
also
discussed.
future
considered
to
be
closely
related
environmental
issues,
will
aided
by
development
species
advanced
characterizations.
Angewandte Chemie International Edition,
Journal Year:
2016,
Volume and Issue:
55(23), P. 6702 - 6707
Published: April 21, 2016
Abstract
To
achieve
sustainable
production
of
H
2
fuel
through
water
splitting,
low‐cost
electrocatalysts
for
the
hydrogen‐evolution
reaction
(HER)
and
oxygen‐evolution
(OER)
are
required
to
replace
Pt
IrO
catalysts.
Herein,
first
time,
we
present
interface
engineering
novel
MoS
/Ni
3
S
heterostructures,
in
which
abundant
interfaces
formed.
For
OER,
such
heterostructures
show
an
extremely
low
overpotential
ca.
218
mV
at
10
mA
cm
−2
,
is
superior
that
state‐of‐the‐art
OER
electrocatalysts.
Using
as
bifunctional
electrocatalysts,
alkali
electrolyzer
delivers
a
current
density
very
cell
voltage
1.56
V.
In
combination
with
DFT
calculations,
this
study
demonstrates
constructed
synergistically
favor
chemisorption
hydrogen
oxygen‐containing
intermediates,
thus
accelerating
overall
electrochemical
splitting.
Energy & Environmental Science,
Journal Year:
2018,
Volume and Issue:
11(4), P. 744 - 771
Published: Jan. 1, 2018
To
avoid
unnoticed
errors
made
by
researchers
who
are
working
in
the
area
of
nanostructured
materials
for
water
splitting,
correct
and
precise
use
evaluation
parameters
is
discussed
detail,
stating
their
acceptability
validity.
Journal of Materials Chemistry A,
Journal Year:
2016,
Volume and Issue:
4(45), P. 17587 - 17603
Published: Jan. 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.
ACS Catalysis,
Journal Year:
2017,
Volume and Issue:
7(4), P. 2357 - 2366
Published: Feb. 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.
Chemical Society Reviews,
Journal Year:
2019,
Volume and Issue:
48(15), P. 4178 - 4280
Published: Jan. 1, 2019
This
review
describes
an
in-depth
overview
and
knowledge
on
the
variety
of
synthetic
strategies
for
forming
metal
sulfides
their
potential
use
to
achieve
effective
hydrogen
generation
beyond.
Nature Communications,
Journal Year:
2016,
Volume and Issue:
7(1)
Published: April 1, 2016
Abstract
Electrochemical
water
splitting
is
one
of
the
most
economical
and
sustainable
methods
for
large-scale
hydrogen
production.
However,
development
low-cost
earth-abundant
non-noble-metal
catalysts
evolution
reaction
remains
a
challenge.
Here
we
report
two-dimensional
coupled
hybrid
molybdenum
carbide
reduced
graphene
oxide
with
ternary
polyoxometalate-polypyrrole/reduced
nanocomposite
as
precursor.
The
exhibits
outstanding
electrocatalytic
activity
excellent
stability
in
acidic
media,
which
is,
to
best
our
knowledge,
among
these
reported
catalysts.
Theoretical
calculations
on
basis
density
functional
theory
reveal
that
active
sites
stem
from
pyridinic
nitrogens,
well
carbon
atoms,
graphene.
In
proof-of-concept
trial,
an
electrocatalyst
fabricated,
may
open
new
avenues
design
nanomaterials
utilizing
POMs/conducting
polymer/reduced-graphene
nanocomposites.
