Polyaniline/(Ta₂O₅–SnO₂) hybrid nanocomposite for efficient room temperature CO gas sensing

Abstract

Room temperature CO sensing using a hybrid (Ta2O5–SnO2) : PANI composite material.

Conductive Polyaniline–Indium Oxide Composite Films Prepared by Sequential Infiltration Synthesis for Electrochemical Energy Storage

“…The presence of oxygen vacancies (V O •• ) is consistent with the substoichiometric nature of the oxide, as mentioned above. Similarly, composites of Ta 2 O 5 –SnO 2 –PANI were reported to contain oxygen vacancies of high concentration along with N cation radicals, which are ascribed to the formation of the hybrid structures . The proportion of the higher BE components is larger in the region closer to the Si substrate, which is consistent with the gradual blue shift of the In 3d peaks (Figure S4).…”

Recent advancements in nano sensors for air and water pollution control

“…Moreover, the sensor showed high selectivity, and excellent repeatability -superior properties that can be attributed to the meso-macropores sensor structure, recognition function of amino groups, and formation of P-N heterojunction between BP and PEI. Ta 2 O 5 -SnO 2 -PANI hybrid composite for efficient sensing of CO at room temperature at very low concentration, have been reported by Aranthady et al, 118 The hybrid material exhibited superior CO sensing performance with high sensitivity, low operating temperature, fast response and fast recovery compared to the individual components. The enhanced sensing ability of the hybrid material has been attributed to the synergistic properties such as conductivity of PANI, improved oxygen vacancies and the heterostructure formed between the PANI and the (Ta 2 O 5 -SnO 2 ) composite (Table 5).…”

Recent progress in polyaniline-based chemiresistive flexible gas sensors: design, nanostructures, and composite materials

“…SnO 2 , an n-type wide band gap semiconductor metal oxide with high mobility of electrons and high chemical and thermal stability, is considered a promising candidate for the fabrication of PANI composite sensors in many research studies. [132][133][134] To further optimize the sensing performance, some metal particles and carbon nanomaterials are also doped into PANI/ SnO 2 sensing composites. [135][136][137] Aliha et al 138 reported the SnO 2 / PANI nanocomposite material for selective detection of ammonia at room temperature.…”