Advanced Materials,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 3, 2025
Abstract
To
achieve
high
selectivity
in
the
transformation
from
peroxymonosulfate
to
singlet
oxygen,
adaptive
tuning
of
atomic
spin
state
as
structure
varied
is
crucial.
The
angstrom
confinement
can
effectively
tune
state,
but
developing
an
angstrom‐confined
system
challenging.
Angstrom‐confined
cobalt
(Co)
manganese
(Mn)
dual
single
atoms
within
flexible
2D
carbon
nitride
interlayer
are
constructed
drive
by
changing
coordination
under
confinement.
situ
characterizations
and
density
functional
theory
calculations
showed
that
medium‐spin
Co
Co─N
4
absorbed
electrons
after
adsorption
on
CoMn
single‐atom
sites
then
cleaved
O─H
facilitate
*
SO
5
generation,
while
introduction
increased
distance
Mn─N,
resulting
transition
medium
high.
Subsequently,
high‐spin
Mn
2
Mn─N
desorbed
O
,
restoring
initial
state.
enhanced
38.6‐fold
oxygen
yield
compared
unconfined
control.
proposed
diatomic
strategy
applicable
serial
catalysts,
providing
efficient
universal
design
scheme
for
oxygen‐mediated
selective
wastewater
treatment
technology
at
level.
