Advanced Science,
Journal Year:
2022,
Volume and Issue:
9(17)
Published: April 15, 2022
Abstract
Replacing
oxygen
evolution
reaction
(OER)
by
electrooxidations
of
organic
compounds
has
been
considered
as
a
promising
approach
to
enhance
the
energy
conversion
efficiency
electrolytic
water
splitting
proces.
Developing
efficient
electrocatalysts
with
low
potentials
and
high
current
densities
is
crucial
for
large‐scale
productions
H
2
other
value‐added
chemicals.
Herein,
non‐noble
metal
Co‐doped
Ni
3
S
self‐supported
on
foam
(NF)
substrate
are
prepared
used
catalysts
5‐hydroxymethylfurfural
(HMF)
oxidation
(HMFOR)
under
alkaline
aqueous
conditions.
For
HMFOR,
Co
0.4
NiS@NF
electode
achieves
an
extremely
onset
potential
0.9
V
versus
reversible
hydrogen
electrode
(RHE)
records
large
density
497
mA
cm
–2
at
1.45
RHE
HMFOR.
During
HMFOR‐assisted
production,
yield
rates
2,5‐furandicarboxylic
acid
(FDCA)
in
10
mL
electrolyte
containing
×
−3
M
HMF
330.4
µmol
h
–1
1000
,
respectively.
The
electrocatalyst
displays
good
cycling
durability
toward
HMFOR
can
be
electrooxidation
biomass‐derived
findings
present
facile
route
based
heteroatom
doping
fabricate
high‐performance
catalyses
that
facilitate
industrial‐level
production
coupling
conventional
HER
cathodic
processes
Journal of Materials Chemistry A,
Journal Year:
2021,
Volume and Issue:
9(9), P. 5320 - 5363
Published: Jan. 1, 2021
This
review
summarizes
recent
advances
relating
to
transition
metal
sulfide
(TMS)-based
bifunctional
electrocatalysts,
providing
guidelines
for
the
design
and
fabrication
of
TMS-based
catalysts
practical
application
in
water
electrolysis.
Advanced Functional Materials,
Journal Year:
2020,
Volume and Issue:
30(45)
Published: Sept. 6, 2020
Abstract
Developing
highly
efficient
and
stable
electrocatalysts
plays
an
important
role
in
energy‐related
electrocatalysis
fields.
Transition‐metal
phosphides
(TMPs)
possess
a
series
of
advantages,
such
as
high
conductivity,
earth‐abundance
reserves,
good
physicochemical
properties,
therefore
arousing
wide
attention.
In
this
review,
the
electrochemical
activity
origin
TMPs,
allowing
rational
design
construction
toward
various
energy‐relevant
reactions
is
first
discussed.
Subsequently,
their
unique
nature
hydrogen
evolution
reaction
(HER),
oxygen
(OER),
reduction
(ORR),
oxidation
(HOR),
carbon
dioxide
(CO
2
RR),
nitrogen
(NRR),
urea
(UOR),
methanol
(MOR),
others
highlighted.
Then,
TMPs’
synthetic
strategies
are
analyzed
summarized
systematically.
Finally,
existing
key
issues,
countermeasures,
future
challenges
TMPs
briefly
Advanced Materials,
Journal Year:
2022,
Volume and Issue:
34(13)
Published: Jan. 18, 2022
Amorphous
and
heterojunction
materials
have
been
widely
used
in
the
field
of
electrocatalytic
hydrogen
evolution
due
to
their
unique
physicochemical
properties.
However,
current
individual
strategy
still
has
limited
effects.
Hence
efficient
tailoring
tactics
with
synergistic
effect
are
highly
desired.
Herein,
authors
realized
deep
optimization
catalytic
activity
by
a
constructing
crystalline-amorphous
CoSe2
/CoP
heterojunction.
Benefiting
from
strong
electronic
coupling
at
interfaces,
d-band
center
material
moves
further
down
compared
its
crystalline-crystalline
counterpart,
optimizing
valence
state
H
adsorption
Co
lowering
kinetic
barrier
reaction
(HER).
The
shows
an
overpotential
65
mV
drive
density
10
mA
cm-2
acidic
medium.
Besides,
it
also
competitive
properties
both
neutral
basic
media.
This
work
provides
inspiration
for
through
combining
crystalline
amorphous
heterojunction,
which
can
be
implemented
other
transition
metal
compound
electrocatalysts.
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.
Advanced Science,
Journal Year:
2022,
Volume and Issue:
9(18)
Published: April 18, 2022
Abstract
The
excessive
dependence
on
fossil
fuels
contributes
to
the
majority
of
CO
2
emissions,
influencing
climate
change.
One
promising
alternative
is
green
hydrogen,
which
can
be
produced
through
water
electrolysis
from
renewable
electricity.
However,
variety
and
complexity
hydrogen
evolution
electrocatalysts
currently
studied
increases
difficulty
in
integration
catalytic
theory,
catalyst
design
preparation,
characterization
methods.
Herein,
this
review
first
highlights
principles
for
reaction
(HER)
electrocatalysts,
presenting
thermodynamics,
kinetics,
related
electronic
structural
descriptors
HER.
Second,
reasonable
design,
mechanistic
understanding,
performance
enhancement
are
deeply
discussed
based
intrinsic
extrinsic
effects.
Third,
recent
advancements
electrocatalytic
splitting
technology
further
briefly.
Finally,
challenges
perspectives
development
highly
efficient
proposed.
Advanced Functional Materials,
Journal Year:
2020,
Volume and Issue:
31(9)
Published: Dec. 6, 2020
Abstract
Efficient
electrocatalysts
are
key
requirements
for
the
development
of
ecofriendly
electrochemical
energy‐related
technologies
and
devices.
It
is
widely
recognized
that
introduction
vacancies
becoming
an
important
valid
strategy
to
promote
electrocatalytic
performances
designed
nanomaterials.
In
this
review,
significance
(i.e.,
cationic
vacancies,
anionic
mixed
vacancies)
on
improvement
via
three
main
functionalities,
including
tuning
electronic
structure,
regulating
active
sites,
improving
electrical
conductivity,
systematically
discussed.
Recent
achievements
in
vacancy
engineering
various
hotspot
processes
comprehensively
summarized,
with
focus
oxygen
reduction
reaction
(ORR),
evolution
(OER),
hydrogen
(HER),
nitrogen
(NRR),
CO
2
(CO
RR),
their
further
applications
overall
water‐splitting
zinc–air
battery
The
recent
other
also
summarized.
Finally,
challenges
prospects
regulate
different
reactions
Chemical Society Reviews,
Journal Year:
2021,
Volume and Issue:
50(13), P. 7539 - 7586
Published: Jan. 1, 2021
Metal
phosphides
(MPs)
with
unique
and
desirable
physicochemical
properties
provide
promising
potential
in
implementable
sustainable
catalytic
fields
including
electrocatalysis,
photocatalysis,
mild
thermocatalysis,
interdisciplinary
hybrid
systems.
Angewandte Chemie International Edition,
Journal Year:
2021,
Volume and Issue:
60(42), P. 22885 - 22891
Published: Aug. 5, 2021
Abstract
Exploring
earth‐abundant
electrocatalysts
with
excellent
activity,
robust
stability,
and
multiple
functions
is
crucial
for
electrolytic
hydrogen
generation.
Porous
phosphorized
CoNi
2
S
4
yolk‐shell
spheres
(P‐CoNi
YSSs)
were
rationally
designed
synthesized
by
a
combined
hydrothermal
sulfidation
gas‐phase
phosphorization
strategy.
Benefiting
from
the
strengthened
Ni
3+
/Ni
2+
couple,
enhanced
electronic
conductivity,
hollow
structure,
P‐CoNi
YSSs
exhibit
activity
durability
towards
hydrogen/oxygen
evolution
urea
oxidation
reactions
in
alkaline
solution,
affording
low
potentials
of
−0.135
V,
1.512
1.306
V
(versus
reversible
electrode)
at
10
mA
cm
−2
,
respectively.
Remarkably,
when
used
as
anode
cathode
simultaneously,
catalyst
merely
requires
cell
voltage
1.544
water
splitting
1.402
electrolysis
to
attain
100
h,
outperforming
most
reported
nickel‐based
sulfides
even
noble‐metal‐based
electrocatalysts.
This
work
promotes
application
electrochemical
production
provides
feasible
approach
urea‐rich
wastewater
treatment.
Environmental Science & Technology,
Journal Year:
2022,
Volume and Issue:
56(8), P. 5200 - 5212
Published: April 8, 2022
Material-enhanced
heterogonous
peroxymonosulfate
(PMS)
activation
on
emerging
organic
pollutant
degradation
has
attracted
intensive
attention,
and
a
challenge
is
the
electron
transfer
efficiency
from
material
to
PMS
for
radical
production.
Herein,
an
interface
architecture
of
Co(OH)2
nanosheets
growing
KNbO3
perovskite
[Co(OH)2/KNbO3]
was
developed,
which
showed
high
catalytic
activity
in
activation.
A
reaction
rate
constant
(k1)
0.631
min-1
complete
removal
pazufloxacin
within
5
min
were
achieved.
X-ray
photoelectron
spectroscopy,
absorption
near
edge
structure
spectra,
density
functional
theory
(DFT)
calculations
revealed
successful
construction
modulated
electronic
Co(OH)2/KNbO3,
resulting
hole
accumulation
KNbO3.
Bader
topological
analysis
charge
distribution
further
indicates
that
occupations
Co-3d
O-2p
orbitals
Co(OH)2/KNbO3
are
pushed
above
Fermi
level
form
antibonding
states
(σ*),
leading
chemisorption
affinity
PMS.
In
addition,
more
reactive
Co(II)
with
closer
d-band
center
results
higher
lower
decomposition
energy
SO4•-.
Moreover,
sites
SO4•-
attack
precisely
identified
based
DFT
calculation
Fukui
index.
The
pathways
proceeded
as
decarboxylation,
nitroheterocyclic
ring
opening
reaction,
defluorination,
hydroxylation.
This
work
can
provide
potential
route
developing
advanced
catalysts
manipulation
enhanced
Fenton-like
such
