Advanced Science,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 3, 2025
The
deployment
of
high-performance
catalysts
and
the
acceleration
anodic
reaction
kinetics
are
key
measures
to
achieve
maximum
energy
efficiency
in
overall
water
electrolysis
hydrogen
production
systems.
Here,
an
innovative
strategy
is
developed
by
directly
constructing
a
supramolecular
framework
embedded
with
boron
clusters
cucurbituril
as
reducing
agent.
This
approach
enabled
situ
conversion
Pt⁴⁺
into
highly
dispersed,
small-sized
nano-platinum,
which
subsequently
distributed
on
boron-carbon-nitrogen
(BCN)
matrix.
resulting
Pt/BNHCSs
catalyst
demonstrates
ability
facilitate
electrocatalytic
splitting
for
across
multiple
scenarios
while
simultaneously
accelerating
methanol
oxidation
kinetics,
significantly
outperforming
commercial
Pt/C
various
aspects.
cathodic
evolution-anodic
coupling
system
constructed
using
greatly
reduces
consumption
system.
In
attenuated
total
reflection
Fourier
transform
infrared
online
differential
electrochemical
mass
spectrometry
reveals
that
interface
enhances
H₂O
adsorption
promotes
CH₃OH→CO
process,
density
functional
theory
calculations
indicated
BCN
support
facilitated
evolution
H₂
CH₃OH
CO,
elucidating
mechanism
promoted
oxidation.
Advanced Sustainable Systems,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 5, 2025
Abstract
As
a
pivotal
bio‐based
building
block,
2,5‐furandicarboxylic
acid
(FDCA)
holds
immense
and
broad
application
potential
in
the
chemistry
industry.
Its
polymeric
derivative,
polyethylene
furandicarboxylate
(PEF),
emerges
as
an
appealing
alternative
to
conventional
petroleum‐based
terephthalate
(PET).
The
electrochemical
route
for
oxidizing
5‐hydroxymethylfurfural
(HMF)
into
FDCA
presents
significant
advantages
over
thermochemical
processes,
without
requirements
of
high
temperature,
pressure,
chemical
oxidants,
precious
metal
catalysts,
featuring
higher
energy
efficiency.
Furthermore,
electrosynthesis
at
anode
can
be
synergistically
integrated
with
selective
reduction
reactions
cathode,
enabling
simultaneous
production
two
desirable
value‐added
products
further
enhancing
overall
utilization
This
work
reviews
advancements
electrocatalytic
HMF
(EHTF),
encompassing
catalyst
design,
reaction
mechanisms,
coupling
strategies,
reactor
configurations.
It
also
indicates
challenges
opportunities
EHTF
provides
insights
future
development
directions.
Catalysts,
Год журнала:
2025,
Номер
15(3), С. 219 - 219
Опубликована: Фев. 26, 2025
Hydrogen
production
from
water
electrolysis
offers
a
highly
promising
and
sustainable
route
to
solve
the
energy
crisis.
However,
it
is
severely
limited
by
sluggish
kinetics
of
oxygen
evolution
reaction
(OER)
occurring
on
anode.
Herein,
employing
carbon
dots
functionalized
with
benzene
sulfonate
groups
(BS-CDs)
as
distinctive
inductor,
Co(OH)2
catalyst
featuring
abundant
defects
was
synthesized
for
an
enhanced
OER.
The
hydrophilic
nature
BS-CDs
exerts
significant
interfacial
induction
effect
growth
dynamics
Co(OH)2,
fostering
formation
elevated
crystal
substantial
quantity
vacancies.
resulting
BS-CDs/Co(OH)2
requires
overpotential
only
340
mV
achieve
current
density
10
mA
cm−2
in
alkaline
media,
demonstrating
markedly
improved
OER
activity
compared
pristine
N-CDs/Co(OH)2
induced
amine-modified
CDs.
Furthermore,
structural
integrity
maintained,
retention
rate
92%
observed
following
20
h
stability
assessment.
This
work
provides
novel
approach
developing
cost-effective
transition
metal
catalysts
that
exhibit
exceptional
catalytic
efficiency
excellent
Chemical Communications,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 1, 2025
Wastewater
from
industrial
chemical
synthesis,
agricultural
activities,
and
domestic
sewage
usually
contains
high
levels
of
nitrogenous
compounds,
endangering
environmental
health
human
well-being.
Nitrogenous
wastewater
electrolysis
(NWE),
despite
its
ecological
merits,
is
inherently
hampered
by
sluggish
kinetics.
To
improve
process
efficiency,
lower
costs,
avoid
cross-contamination
between
the
anode
cathode,
a
range
bifunctional
transition-metal
catalysts
capable
efficient
operation
at
both
electrodes
have
recently
been
developed.
This
review
outlines
progress
in
these
for
energy-saving
production
hydrogen
wastewater,
including
urea,
hydrazine,
ammonia.
It
highlights
their
dual
role
degrading
pollutants
generating
energy.
The
meticulously
introduces
key
performance
metrics
NWE
system
surveys
latest
advancements
catalysts,
along
with
catalytic
mechanisms.
culminates
detailed
summary
comparative
analysis
representative
emphasizing
electricity
consumption
efficiency.
Lastly,
existing
challenges
research
prospects
are
thoroughly
discussed.
Journal of the American Chemical Society,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 8, 2025
Electrochemical
H2
production
from
water
favors
low-voltage
molecular
oxidation
to
replace
the
oxygen
evolution
reaction
as
an
energy-saving
and
value-added
approach.
However,
there
exists
a
mismatch
between
high
demand
for
slow
anodic
reactions,
restricting
practical
applications
of
such
hybrid
systems.
Here,
we
propose
bipolar
approach,
with
generation
N–N
oxidatively
coupled
dehydrogenation
(OCD)
3,5-diamino-1H-1,2,4-triazole
(DAT),
in
addition
cathodic
generation.
The
system
requires
relatively
low
potentials
0.872
1.108
V
vs
RHE
reach
10
500
mA
cm–2,
respectively.
H-type
electrolyzer
only
0.946
1.129
deliver
100
respectively,
electricity
consumption
(1.3
kWh
per
m3
H2)
reduced
by
68%,
compared
conventional
splitting.
Moreover,
process
is
highly
appealing
due
absence
traditional
hazardous
synthetic
conditions
azo
compounds
at
anode
crossover/mixing
H2/O2
electrolyzer.
A
flow-type
operates
stably
cm–2
300
h.
Mechanistic
studies
reveal
that
Pt
single
atom
nanoparticle
(Pt1,n)
optimize
adsorption
S
active
sites
over
Pt1,n@VS2
catalysts.
At
anode,
stepwise
−NH2
DAT
then
oxidative
coupling
−N–N–
predominantly
form
while
generating
H2.
present
report
paves
new
way
atom-economical
aminotriazole
green
electrosynthesis
chemicals.
