Chemosensors,
Journal Year:
2023,
Volume and Issue:
11(2), P. 108 - 108
Published: Feb. 2, 2023
A
new
sensing
material,
Pt(II)-5-(4-carboxyphenyl)-10,15,20-tris(4-phenoxyphenyl)-porphyrin
(Pt(II)-COOH-TPOPP),
was
synthesized
and
characterized.
Polymeric
membranes
containing
the
porphyrin
three
different
plasticizers
were
used
as
an
electroactive
material
for
a
anion-selective
sensor.
The
best
composition
of
membrane
one
plasticized
with
dioctylsebacate
(DOS),
obtained
sensor
being
citrate-selective
in
linear
range
5
×
10−7–1
10−1
M
citrate.
slope
Nernstian
(19.73
mV/decade)
good
selectivity
towards
number
interfering
anions
lifetime
five
weeks.
Nanoscale Advances,
Journal Year:
2023,
Volume and Issue:
5(17), P. 4368 - 4401
Published: Jan. 1, 2023
Based
on
recent
reports
of
electrochemical
catalysts
for
ZABs,
we
conclude
that
reconstruction
the
structures
high-active
carbon
and
metal
composites
during
operation
should
be
considered
optimization
reaching
higher
stability.
Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 10, 2024
Metalloporphyrins
modified
carbon-based
materials,
owing
to
the
excellent
acid-base
resistance,
optimal
electron
transfer
rates,
and
superior
catalytic
performance,
have
shown
great
potential
in
energy
electrocatalysis.
Recently,
numerous
efforts
concentrated
on
employing
substrates
as
platforms
anchor
metalloporphyrins,
thereby
fabricating
a
diverse
array
of
composite
catalysts
tailored
for
assorted
electrocatalytic
processes.
However,
interplay
through
bonding
regulation
metalloporphyrins
with
carbon
materials
resultant
enhancement
catalyst
performance
remains
inadequately
elucidated.
Gaining
an
in-depth
comprehension
synergistic
interactions
between
within
realm
electrocatalysis
is
imperative
advancing
development
innovative
catalysts.
Herein,
review
systematically
classifies
binding
modes
(i.e.,
covalent
grafting
non-covalent
interactions)
followed
by
discussion
structural
characteristics
applications
supported
various
substrates,
categorized
according
their
modes.
Additionally,
this
underscores
principal
challenges
emerging
opportunities
carbon-supported
metalloporphyrin
catalysts,
offering
both
inspiration
methodological
insights
researchers
involved
design
application
these
advanced
systems.
ACS Applied Nano Materials,
Journal Year:
2023,
Volume and Issue:
7(1), P. 69 - 76
Published: Dec. 29, 2023
In
the
era
of
renewable
energy,
electrocatalytic
water
splitting
has
always
shown
considerable
potential.
Consequently
developing
earth-abundant,
affordable,
and
durable
electrocatalysts
for
oxygen
evolution
is
crucial.
this
regard,
polyoxometalates
have
been
in
spotlight
recently
because
their
attractive
properties
well-defined
molecular
arrangement.
Herein,
we
report
a
"polyoxometalate-derived"
noble
metal-free
electrocatalyst
efficient
"acidic"
medium
first
time.
An
octamolybdate
cluster-based
solid,
[(Cu(pic)2)2(Mo8O26)]·8H2O
(POM),
served
as
precursor
to
obtain
nanosheet-like
[Cu0.1-{MoO2}0.9]
(PS-55)
which
offered
overpotential
374
mV
reach
10
mA
cm–2
current
density
tafel
slope
193
dec–1,
with
stability
18
h.
Density
functional
theory
analysis
revealed
Mo
prominent
active
site
PS-55.
Projected
states
demonstrated
synergistic
interaction
between
Cu-Mo
d
orbitals
O
p
orbitals,
resulting
p-d
mixing,
key
factor
driving
proficient
reaction.
This
work
paves
way
studying
POM-derived
catalysts
acidic
oxidation.
Chemical Communications,
Journal Year:
2023,
Volume and Issue:
60(7), P. 793 - 803
Published: Dec. 14, 2023
Polyimide
covalent
organic
frameworks
(PI-COFs)
are
outstanding
functional
materials
for
electrochemical
energy
conversion
and
storage
owing
to
their
integrated
advantages
of
the
high
electroactive
feature
polyimides
periodic
porous
structure
COFs.
Nevertheless,
only
anhydride
monomers
with
International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(14), P. 8041 - 8041
Published: July 21, 2022
Triplet–triplet
annihilation
upconversion
(TTA-UC)
is
a
very
promising
technology
that
could
be
used
to
convert
low-energy
photons
high-energy
ones
and
has
been
proven
of
great
value
in
various
areas.
Porphyrins
have
the
characteristics
high
molar
absorbance,
can
form
complex
with
different
metal
ions
proportion
triplet
states
as
well
tunable
structures,
thus
they
are
important
sensitizers
for
TTA-UC.
Porphyrin-based
TTA-UC
plays
pivotal
role
systems
widely
many
fields
such
solar
cells,
sensing
circularly
polarized
luminescence.
In
recent
years,
applications
porphyrin-based
photoinduced
reactions
emerged,
but
paid
little
attention.
As
consequence,
this
review
close
attention
advances
photoreactions
triggered
by
systems.
First
all,
photochemistry
chemical
transformations,
photoisomerization,
photocatalytic
synthesis,
photopolymerization,
photodegradation
photochemical/photoelectrochemical
water
splitting,
was
discussed
detail,
which
revealed
mechanisms
methods
carry
out
reasonable
molecular
innovations
nanoarchitectonics
solve
existing
problems
practical
application.
Subsequently,
driven
biomedical
were
demonstrated.
Finally,
future
developments
briefly
discussed.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(17), P. 4200 - 4200
Published: Sept. 4, 2024
[Sn(H2PO4)2(TPyHP)](H2PO4)4∙6H2O
(2),
an
ionic
tin
porphyrin
complex,
was
synthesized
from
the
reaction
of
[Sn(OH)2TPyP]
(1)
with
a
dilute
aqueous
solution
polyprotic
acid
(H3PO4).
Complex
2
fully
characterized
using
various
spectroscopic
methods,
such
as
X-ray
single-crystal
crystallography,
1H
NMR
spectroscopy,
elemental
analysis,
FTIR
UV–vis
emission
EIS
mass
spectrometry,
PXRD,
and
TGA
analysis.
The
crystal
structure
reveals
that
intermolecular
hydrogen
bonds
between
peripheral
pyridinium
groups
axially
coordinated
dihydrogen
phosphate
ligands
are
main
driving
force
for
supramolecular
assembly.
Simultaneously,
overall
association
these
chains
in
leads
to
open
framework
porous
channels.
photocatalytic
degradation
efficiency
methyl
orange
dye
tetracycline
antibiotic
by
83%
within
75
min
(rate
constant
=
0.023
min−1)
75%
60
0.018
min−1),
respectively.
self-assembly
resulted
nanostructure
huge
surface
area,
elevated
thermodynamic
stability,
interesting
morphology,
excellent
catalytic
photodegradation
performance
water
pollutants,
making
porphyrin-based
systems
promising
wastewater
treatment.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(4), P. 915 - 915
Published: Feb. 11, 2023
In
order
to
yield
more
Co(II),
2,6-diaminopyridine
(DAP)
was
polymerized
with
4,4-methylene
diphenyl
diisocyanates
(MDI)
in
the
presence
of
Co(II)
obtain
a
Co-complexed
polyurea
(Co-PUr).
The
obtained
Co-PUr
calcined
become
Co,
N-doped
carbon
(Co-N-C)
as
cathode
catalyst
an
anion
exchange
membrane
fuel
cell
(AEMFC).
High-resolution
transmission
electron
microscopy
(HR-TEM)
Co-N-C
indicated
many
Co-Nx
(Co
covalent
bonding
several
nitrogen)
units
matrix.
X-ray
diffraction
patterns
showed
that
and
cobalt
crystallized
catalysts.
Raman
spectra
matrix
became
ordered
increased
calcination
temperature.
surface
area
(dominated
by
micropores)
Co-N-Cs
also
non-precious
demonstrated
comparable
electrochemical
properties
(oxygen
reduction
reaction:
ORR)
commercial
precious
Pt/C,
such
high
on-set
half-wave
voltages,
limited
current
density,
lower
Tafel
slope.
number
electrons
transferred
close
four,
indicating
complete
ORR.
max.
power
density
(Pmax)
single
value
227.7
mWcm-2.
