Surface
active
oxygen
species
in
heterogeneous
catalyst
material
is
very
vital
for
driving
catalytic
volatile
organic
compounds
(VOCs)
oxidation
but
still
difficult
to
rationally
modulate.
Herein,
the
interfacial
Pt/WO3
conveniently
activated
by
a
heating
treatment
under
nitrogen
flow.
The
obtain
Pt/WO3-N2-T
(T=
200,
400,
600,
represents
calcination
temperature)
shows
much
superior
activity
than
bare
catalyst,
particularly
Pt/WO3-N2-400
with
T95
of
only
250
oC
(T95
=
350
oC).
changes
structure
during
flow
contributes
improved
activity,
including
re-dispersed
WO3
support
and
Pt
nanoparticles.
More
importantly,
surface
more
that
which
generated
removing
hydroxyl
groups
its
residual
nearby
species.
These
novel
findings
provide
strategy
activate
materials
reaction.
Environmental Science & Technology,
Год журнала:
2025,
Номер
59(2), С. 1034 - 1059
Опубликована: Янв. 6, 2025
Water
vapor
is
a
significant
component
in
real
volatile
organic
compounds
(VOCs)
exhaust
gas
and
has
considerable
impact
on
the
catalytic
performance
of
catalysts
for
VOC
oxidation.
Important
progress
been
made
reaction
mechanisms
H2O
water
resistance
strategies
oxidation
recent
years.
Despite
advancements
technology,
most
still
exhibit
low
activity
under
humid
conditions,
presenting
challenge
reducing
adverse
effects
To
develop
water-resistant
catalysts,
understanding
mechanistic
role
implementing
effective
water-resistance
with
influencing
factors
are
imperative.
This
Perspective
systematically
summarizes
related
research
oxidation,
drawing
from
over
390
papers
published
between
2013
2024.
Five
main
proposed
to
clarify
their
H2O.
inhibition/promotion
introduced,
elucidating
various
VOCs.
Additionally,
different
kinds
discussed,
including
fabrication
hydrophobic
materials,
design
specific
structures
morphologies,
introduction
additional
elements
catalyst
modification.
Finally,
scientific
challenges
opportunities
enhancing
efficient
practical
applications
purification
highlighted.
