Stable Pb2+ ion-selective electrodes based on polyaniline-TiO2 solid contacts

High‐Performance Ternary Semitransparent Polymer Solar Cells with Different Bandgap Third Component as Non‐Fullerene Guest Acceptor

“…Three classical guest‐acceptors as third components were incorporated to improve the absorption in the visible and near‐infrared (NIR) region, which was in favor of enhancing light‐harvesting and achieving high photocurrent. The energy‐level diagram is illustrated in Figure 1d, the highest occupied molecular orbital (HOMO) levels of PM6, Y6, ITIC, IT‐4F, IHIC are −5.45, −5.58, −5.58, −5.59, −5.47 eV, respectively, are calculated by the onset oxidation potentials estimated by cyclic voltammogram (CV) measurements, [ 40 ] shown in Figure S2 and Table S1, Supporting Information. The absorption, electrochemistry, and energy levels parameters are listed in Table 1 .…”

An Ion‐selective Electrode Based on Ti3C2 Solid‐state Transduction for Rapid Detection of Lead Ion Concentration in Aqueous Solution

“…The water layer will affect the potential of the ISEs [4a, 16a]. Therefore, the water layer should be strictly avoided in solid ISEs.…”

Potentiometric Sensing

“…The same research group described a polyaniline-doped titanium dioxide (TiO 2 ) as a transducer for the solid contact Pb 2+ -selective electrode. 76 Surprisingly, this composite possessed a much lower capacitance value of 8.1 μF calculated on the basis of a chronopotentiometry test. The potentiometric response of Pb 2+ -selective electrodes with the PANI−TiO 2 composite was comparable with the one described above, but a slight improvement of the detection limit was observed.…”

“…The prepared Pb 2+ -selective electrode demonstrated a slope of 29 mV/decade in the concentration range from 10 –8 to 10 –3 M. The response was confirmed to be stable over 1 week, but a gradual increase of the lower detection limit value was observed after 3 and 6 weeks of tests. The same research group described a polyaniline-doped titanium dioxide (TiO 2 ) as a transducer for the solid contact Pb 2+ -selective electrode . Surprisingly, this composite possessed a much lower capacitance value of 8.1 μF calculated on the basis of a chronopotentiometry test.…”