Advanced Functional Materials,
Journal Year:
2024,
Volume and Issue:
34(44)
Published: May 17, 2024
Abstract
Electrocatalytic
alkynol
semi‐hydrogenation
for
the
high‐value
chemicals
alkenol
with
mild
conditions
and
carbon‐free
emission
is
a
potentially
green
sustainable
alternative
to
conventional
thermocatalytic
routes,
which
generally
involves
design
of
electrocatalysts
high
activity
selectivity.
Here,
rare‐earth
single‐atom
(Ln
=
La,
Nd,
Pr)
coordinated
Pd
metallene
1
Pdene)
reported
electrocatalytic
2‐methyl‐3‐butyn‐2‐ol
(MBY)
reaction
(MBY
ESHR)
synthesis
2‐methyl‐3‐buten‐2‐ol
(MBE).
Typically,
in
alkaline
medium
containing
0.1
m
MBY,
MBY
conversion
MBE
selectivity
La
Pdene
are
as
≈97%
≈95%,
respectively,
excellent
stability.
Meanwhile,
situ
infrared
spectra
reveal
during
dynamic
process.
Theoretical
calculations
that
interaction
between
host
triggers
an
unconventional
transformation
intermediate
MBE*
adsorption
configuration
hydrogenation,
achieving
optimal
desorption
energy
target
product
optimizing
barriers
inhibit
over‐hydrogenation
MBE.
Moreover,
active
site
hydrogen
supplier
H
2
O
effectively
reduces
competition
reactants
O,
rendering
synergistic
co‐catalytic
sites
promote
reaction.
ACS Catalysis,
Journal Year:
2023,
Volume and Issue:
13(15), P. 10394 - 10404
Published: July 25, 2023
Electrochemical
reformation
of
nitrate
wastewater
and
poly(ethylene
terephthalate)
(PET)
plastic
waste
into
ammonia
(NH3)
fine
chemicals
is
a
sustainable
strategy
for
resource
utilization.
Herein,
co-production
system
glycolic
acid
(GA,
degradable
polymer
monomer)
constructed
by
coupling
reduction
ethylene
glycol
(EG,
in
PET
hydrolysate)
oxidation.
Low-crystalline
CoOOH
(LC-CoOOH/CF)
Pd
nanothorns
(Pd
NTs/NF)
grown
situ
on
the
metal
foam
substrates
are
employed
as
cathode
anode,
respectively.
The
high
density
amorphous
regions
LC-CoOOH/CF
enables
enhanced
adsorption
provides
abundant
active
sites,
ultimately
leading
to
an
Faradic
efficiency
(FE)
97.38
±
1.0%
at
−0.25
V
vs
reversible
hydrogen
electrode
(RHE).
Meanwhile,
unique
nanothorn
morphology
endows
NTs/NF
with
high-curvature
tip,
triggering
tip
effect
(TE)
promote
highly
selective
oxidation
EG
GA.
Furthermore,
two-electrode
system,
NH3
GA
operated
low
energy
consumption
(onset
voltage:
0.5
V),
much
lower
than
traditional
electrolysis
process
(1.4
V).
This
study
method
utilization
co-produce
value-added
chemicals.
Nanoscale,
Journal Year:
2024,
Volume and Issue:
16(22), P. 10853 - 10863
Published: Jan. 1, 2024
The
electrochemical
hydrogen
production
from
water
splitting
is
a
promising
strategy
for
obtaining
new
energy
sources
and
replacing
fossil
fuels.
In
this
study,
nickel
nanocones
were
first
deposited
on
foam
substrate
using
direct
current
method.
Then,
nickel-cobalt-manganese
ternary
alloy
with
nanosheet
morphology
was
the
cyclic
voltammetry
method
different
cycles
sweep
rates.
results
show
that
sample
synthesized
in
3
rate
of
10
mV
s
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(15), P. 8796 - 8804
Published: Jan. 1, 2024
The
development
of
non-precious
metal
electrocatalysts
for
acidic
oxygen
evolution
reaction
(OER)
that
are
highly
durable,
cost-effective,
and
efficient
is
crucial
to
advancing
the
use
proton
exchange
membrane
water
electrolyzers
(PEMWEs).
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(7), P. 4209 - 4220
Published: Jan. 1, 2024
A
Fe-doped
Ni
2
P-Co
P-Zn
3
P
heterogeneous
electrocatalyst
with
a
nanoneedle-assembled
nanosphere
structure
and
abundant
defects
was
fabricated
on
foam
(Fe-NiCoZnP/NF).
Fe-NiCoZnP/NF
shows
enhanced
electrocatalytic
activity
stability
for
HER
HzOR.
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(17), P. 9933 - 9961
Published: Jan. 1, 2024
Nano-sized
high
entropy
alloy
(HEA)
catalysts
have
attracted
much
attention
as
extraordinary
electrocatalysts
in
water-splitting
applications,
i.e.
,
the
hydrogen
evolution
reaction
(HER)
and
oxygen
(OER).
Journal of Materials Chemistry A,
Journal Year:
2024,
Volume and Issue:
12(43), P. 29978 - 29988
Published: Jan. 1, 2024
An
e-modulated
Ni
MOF
prepared
through
Zn
doping
enhances
the
number
of
active
sites
for
formation
a
catalytic
Ni–OOH
phase,
thereby
accelerating
methanol
oxidation
at
anode
and
boosting
H
2
generation
cathode.
Journal of the American Chemical Society,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 13, 2025
Methanol
(ME)
is
a
liquid
hydrogen
carrier,
ideal
for
on-site-on-demand
H2
generation,
avoiding
its
costly
and
risky
distribution
issues,
but
this
"ME-to-H2"
electric
conversion
suffers
from
high
voltage
(energy
consumption)
competitive
oxygen
evolution
reaction.
Herein,
we
demonstrate
that
synergistic
cofunctional
Pt1Pdn/(Ni,Co)(OH)x
catalyst
with
Pt
single
atoms
(Pt1)
Pd
nanoclusters
(Pdn)
anchored
on
OH-vacancy(VOH)-rich
(Ni,Co)(OH)x
nanoparticles
create
triadic
active
sites,
allowing
methanol-enhanced
low-voltage
generation.
For
MOR,
OH*
preferentially
adsorbed
Pdn
then
interacts
the
intermediates
(such
as
*CHO
or
*CHOOH)
favorably
neighboring
Pt1
assistance
of
bonding
surface
(Ni,Co)(OH)x.
The
enhanced
selectivity
*CHOOH
pathway,
instead
*CO,
sustains
MOR
activity
to
practically
current
density.
HER,
Pt1,
Pdn,
OH-vacancy
sites
an
"acid–base"
microenvironment
facilitate
water
adsorption
splitting,
forming
H*
species
*OH
at
vacancy,
promote
efficient
asymmetric
via
Tafel
mechanism.
triadic-site
synergy
opens
new
avenues
design
synthesis
highly
stable
catalysts
"on-site-on-demand"
production,
here
facilitated
by
methanol.
