Catalysts,
Journal Year:
2024,
Volume and Issue:
14(11), P. 793 - 793
Published: Nov. 6, 2024
Electrochemical
oxygen
reduction
via
the
two-electron
pathway
(2e-ORR)
is
an
emerging
method
for
producing
H2O2.
It
cleaner,
safer,
and
more
convenient
compared
to
anthraquinone
process.
Graphite
felt
one
of
cathode
candidates
large-scale
cells
due
its
excellent
mechanical
properties.
However,
commercial
graphite
often
fails
achieve
desired
hydrogen-peroxide
yield
because
low
catalytic
selectivity
2e-ORR
pathway.
Fluorine-doped
carbon
materials
are
expected
enhance
selectivity.
This
electronic
structure
atoms
adjacent
fluorine
may
facilitate
production
hydrogen
peroxide
while
hindering
further
reduction.
In
this
study,
fluorine-doped
graphene
oxide
(FGO)
was
prepared
by
hydrothermal
method.
Subsequently,
modified
with
FGO
fabricated
used
as
H2O2
production.
The
results
indicated
that
in
alkaline
media,
achieved
a
93%
generation
rate
8.91
mg
cm⁻2
h⁻¹.
comparison,
had
75%
2.10
Moreover,
also
exhibited
electrocatalytic
performance
neutral
media.
research
provides
fundamental
study
promote
application
environmentally
friendly
industries.
Chemical Society Reviews,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
This
review
systematically
provides
various
insights
into
the
pH
effect
on
hydrogen
electrocatalysis,
and
thus
providing
a
reference
for
future
development
of
electrocatalysis
based
these
insights.
Angewandte Chemie International Edition,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 11, 2025
Abstract
To
advance
electrochemical
H
2
O
production
and
unravel
catalytic
mechanisms,
the
precise
structural
coordination
of
single‐atomic
M‐N‐C
electrocatalysts
is
urgently
required.
Herein,
Co─N
5
site
with
an
asymmetric
electronic
configuration
constructed
to
boost
two‐electron
oxygen
reduction
reaction
(2e
−
ORR)
compared
symmetric
4
,
effectively
overcoming
trade‐off
between
activity
selectivity
in
production.
Both
experimental
theoretical
analyses
demonstrate
that
breaking
symmetry
sites
promotes
activation
molecules
moderates
adsorption
key
*OOH
intermediate
by
disrupting
linear
scaling
relationship
for
intermediates
adsorption.
This
modulation
enables
efficient
H₂O₂
its
effective
retention
subsequent
applications.
As
a
proof
concept,
achieves
rate
as
high
16.1
mol
g
cat
−1
h
flow
cell,
outperforming
most
recently
reported
counterparts.
Furthermore,
coupling
2e
ORR
oxidation
cellulose‐derived
carbohydrates
accomplishes
formic
acid
yields
(84.1%
from
glucose
62.0%–92.1%
other
substrates),
underpinning
sustainable
electro‐refinery
biomass
valorization
at
ambient
conditions.
By
elucidating
intrinsic
2e⁻
asymmetry
sites,
this
work
paves
way
high‐performance
electrosynthesis.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Covalent
organic
frameworks
(COFs)
containing
dioxin‐linkages
are
highly
valued
for
their
exceptional
chemical
stability,
which
is
essential
practical
use.
However,
research
on
dioxin‐based
COFs
remains
limited.
Herein,
a
unique
nonplanar
2D
COF,
designated
as
TCP‐COF,
constructed
from
catechol‐porphyrin
units
interconnected
by
1,4‐dioxin
bonds,
exhibiting
staggered
AAA
stacking
pattern,
presented.
Remarkably,
TCP‐COF
can
undergo
in
situ
exfoliation
to
produce
ultrathin
nanosheets
when
it
utilized
photocatalyst
hydrogen
peroxide
(H
2
O
)
generation
water
and
air,
without
the
need
additives.
This
process
primarily
driven
distortion
of
porphyrin
weak
π
–
interaction
between
adjacent
layers
TCP‐COF.
The
resultant
significantly
reinforce
catalytic
activity,
achieving
photocatalytic
H
production
rate
3077
µmol
g
−1
h
.
mechanism
underlying
photosynthesis
further
explored
through
combination
experimental
analyses
theoretical
calculations.
study
provides
valuable
insights
development
efficient
COF‐based
photocatalysts
evolution.
The Chemical Record,
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Electrocatalysis
is
a
crucial
technology
that
will
enable
future
low‐carbon
chemical
production
and
energy
beyond
fossil
fuels.
Notwithstanding
the
intense
growing
research
in
area,
potentialities
of
field
are
largely
unexplored.
We
provide
case
examples
discuss
emerging
possibilities
have
still
not
been
investigated
enough
but
necessary
to
exploit
this
potential
e‐chemistry.
Starting
from
defining
trends
setting
scene,
as
well
clarifying
difference
between
electrochemistry
electrocatalysis,
some
elements
vision
foster
innovation
discussed.
The
aim
stimulate
discussion
reflection
rather
than
review
state‐of‐the‐art.
Aspects
discussed
regard
i)
passing
electro
photoelectrocatalytic
approaches,
ii)
making
chemicals
air,
iii)
exploitation
both
anodic
cathodic
reactions,
tandem/paired
electrocatalytic
iv)
for
selective
oxidation
mediated
synthesis.
Priorities
strategies
an
e‐chemistry
Intensifying
these
directions
extending
still‐too‐limited
current
including
modelling
design,
effort
accelerate
realisation
distributed
