Small,
Journal Year:
2021,
Volume and Issue:
18(7)
Published: Nov. 5, 2021
Abstract
High‐entropy
alloys
(HEAs)
are
expected
to
function
well
as
electrocatalytic
materials,
owing
their
widely
adjustable
composition
and
unique
physical
chemical
properties.
Recently,
HEA
catalysts
extensively
studied
in
the
field
of
electrocatalysis;
this
motivated
authors
investigate
relationship
between
structure
HEAs
performance.
In
review,
latest
advances
electrocatalysts
systematically
summarized,
with
special
focus
on
nitrogen
fixation,
carbon
cycle,
water
splitting,
fuel
cells;
addition,
by
combining
characterization
analysis
microstructures,
rational
design
strategies
for
optimizing
electrocatalysts,
including
controllable
preparation,
component
regulation,
strain
engineering,
defect
theoretical
prediction
proposed.
Moreover,
existing
issues
future
trends
predicted,
which
will
help
further
develop
these
high‐entropy
materials.
Chemical Society Reviews,
Journal Year:
2022,
Volume and Issue:
51(11), P. 4583 - 4762
Published: Jan. 1, 2022
Replacing
fossil
fuels
with
energy
sources
and
carriers
that
are
sustainable,
environmentally
benign,
affordable
is
amongst
the
most
pressing
challenges
for
future
socio-economic
development.
Energy & Environmental Science,
Journal Year:
2020,
Volume and Issue:
13(10), P. 3439 - 3446
Published: Jan. 1, 2020
A
robust
oxygen-evolving
electrocatalyst
for
high-performance
seawater
splitting
was
developed
using
a
cost-effective
and
industrially
compatible
method.
Nature Communications,
Journal Year:
2020,
Volume and Issue:
11(1)
Published: Oct. 29, 2020
Rational
design
of
the
catalysts
is
impressive
for
sustainable
energy
conversion.
However,
there
a
grand
challenge
to
engineer
active
sites
at
interface.
Herein,
hierarchical
transition
bimetal
oxides/sulfides
heterostructure
arrays
interacting
two-dimensional
MoOx/MoS2
nanosheets
attached
one-dimensional
NiOx/Ni3S2
nanorods
were
fabricated
by
oxidation/hydrogenation-induced
surface
reconfiguration
strategy.
The
NiMoOx/NiMoS
array
exhibits
overpotentials
38
mV
hydrogen
evolution
and
186
oxygen
10
mA
cm-2,
even
surviving
large
current
density
500
cm-2
with
long-term
stability.
Due
optimized
adsorption
energies
accelerated
water
splitting
kinetics
theory
calculations,
assembled
two-electrode
cell
delivers
industrially
relevant
densities
1000
record
low
voltages
1.60
1.66
V
excellent
durability.
This
research
provides
promising
avenue
enhance
electrocatalytic
performance
engineering
interfacial
toward
large-scale
splitting.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(34), P. 18821 - 18829
Published: June 14, 2021
Abstract
The
oxygen
evolution
reaction
(OER)
is
a
key
for
many
electrochemical
devices.
To
date,
OER
electrocatalysts
function
well
in
alkaline
media,
but
exhibit
poor
performances
neutral
and
acidic
especially
the
stability.
Herein,
sodium‐decorated
amorphous/crystalline
RuO
2
with
rich
vacancies
(a/c‐RuO
)
was
developed
as
pH‐universal
electrocatalyst.
a/c‐RuO
shows
remarkable
resistance
to
acid
corrosion
oxidation
during
OER,
which
leads
an
extremely
high
catalytic
stability,
confirmed
by
negligible
overpotential
increase
after
continuously
catalyzing
60
h
at
pH=1.
Besides,
also
exhibits
superior
activities
commercial
most
reported
catalysts
under
all
pH
conditions.
Theoretical
calculations
indicated
that
introduction
of
Na
dopant
vacancy
weakens
adsorption
strength
intermediates
engineering
d
‐band
center,
thereby
lowering
energy
barrier
OER.
Nature Communications,
Journal Year:
2021,
Volume and Issue:
12(1)
Published: March 1, 2021
Abstract
Developing
high-performance
electrocatalysts
toward
hydrogen
evolution
reaction
is
important
for
clean
and
sustainable
energy,
yet
still
challenging.
Herein,
we
report
a
single-atom
strategy
to
construct
excellent
metal-organic
frameworks
(MOFs)
electrocatalyst
(NiRu
0.13
-BDC)
by
introducing
atomically
dispersed
Ru.
Significantly,
the
obtained
NiRu
-BDC
exhibits
outstanding
activity
in
all
pH,
especially
with
low
overpotential
of
36
mV
at
current
density
10
mA
cm
−2
1
M
phosphate
buffered
saline
solution,
which
comparable
commercial
Pt/C.
X-ray
absorption
fine
structures
functional
theory
calculations
reveal
that
Ru
can
modulate
electronic
structure
metal
center
MOF,
leading
optimization
binding
strength
H
2
O
H*,
enhancement
HER
performance.
This
work
establishes
as
an
efficient
approach
MOFs
catalyst
design.
Energy & Environmental Science,
Journal Year:
2020,
Volume and Issue:
13(4), P. 1132 - 1153
Published: Jan. 1, 2020
Surface/interface
nanoengineering
of
electrocatalysts
and
air
electrodes
will
promote
the
rapid
development
high-performance
rechargeable
Zn–air
batteries.
Angewandte Chemie International Edition,
Journal Year:
2020,
Volume and Issue:
59(43), P. 19215 - 19221
Published: July 24, 2020
Co-based
spinel
oxides,
which
are
of
mixing
valences
with
the
presence
both
Co2+
and
Co3+
at
different
atom
locations,
considered
as
promising
catalysts
for
electrochemical
oxidation
5-hydroxymethylfurfural
(HMF).
Identifying
role
each
site
in
electroxidation
HMF
is
critical
to
design
advanced
electrocatalysts.
In
this
work,
we
found
that
Co2+Td
Co3
O4
capable
chemical
adsorption
acidic
organic
molecules,
Co3+Oh
play
a
decisive
oxidation.
Thereafter,
Cu2+
was
introduced
oxides
enhance
exposure
degree
boost
thus
electrocatalytic
activity
electrooxidation
significantly.
Energy & Environmental Science,
Journal Year:
2021,
Volume and Issue:
14(4), P. 1722 - 1770
Published: Jan. 1, 2021
A
tuned
electronic
structure
favors
the
electrocatalytic
water
splitting
reactionviaaccelerating
reaction
kinetics,
changing
rate-determining
step,
and
optimizing
adsorption
energy
for
intermediates;
this
is
achievedviaintentionally
incorporating
imperfections
into
crystal
lattices
of
electrocatalysts.
