ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(44), P. 16434 - 16443
Published: Oct. 21, 2024
Access
to
freshwater
is
crucial
for
a
sustainable
environment
and
human
ecosystems.
Hybrid
capacitive
deionization
(HCDI)
based
on
attractive
pseudocapacitive
reactions
considered
promising
environmentally
friendly
energy-saving
electrochemical
desalination
technology.
However,
the
application
of
HCDI
technology
still
limited,
mainly
due
unsatisfactory
ion
adsorption
ability
electrode.
Herein,
we
unveil
an
innovative
redox-active
organic
molecule
(PATD)
that
showcases
outstanding
properties
desalination.
Notably,
integration
C═O
C═N
groups
in
PATD
promotes
stable
efficient
reactions.
Additionally,
rigid
molecular
structure,
combined
with
minimal
HOMO–LUMO
energy
gap,
ensures
exceptional
redox
characteristics
superior
electron
transfer
capability
molecule,
which
are
substantiated
by
experimental
evidence
theoretical
studies.
As
electrode,
exhibits
significant
along
excellent
long-term
stability,
retaining
89.0%
its
capacitance
after
5000
cycles
NaCl
aqueous
solution.
In
practical
applications,
developed
device
incorporating
electrode
demonstrates
remarkably
high
salt
removal
capacity
56.9
mg
g–1,
swift
average
rate
1.9
g–1
min–1,
consistent
regeneration
performance
while
attaining
reliable
recovery,
highlights
prospects
technologies.
