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- W4210644471 abstract "In the present research TiO 2 modified LaCrO 3 nanostructure has been designed by simple sol-gel method. The thick films of TiO 2 with different concentrations with LaCrO 3 were fabricated by using screen printing methodology. In present study, the structural properties of TiO 2 doped LaCrO 3 were confirm by using X-ray diffractometer (XRD). While the morphological properties and surface characteristics of fabricated material analyzed using scanning electron microscopy (SEM). The energy dispersive spectroscopy (EDS) was utilized for chemical composition of the prepared material. Transmission electron microscopy (TEM) confirms the orthorhombic crystal lattice structure and morphology of Ti-doped LaCrO 3 . While, Fourier transform infrared (FT-IR) spectroscopy was used to investigate the M − O bonding vibrational stretching frequencies of LaCrO 3 and TiO 2 materials. The zeta potential was recorded for stability of all Ti doped LaCrO 3 nanostructures. The Brunauer-Emmett-Teller (BET) was analyzed for surface area and pore diameter parameters of the fabricated materials. The fabricated materials were checked for application as a sensor for different pollutant gases like Ethanol, CO 2 , NO 2 , and petrol vapors. The sensor demonstrates the sensitivity for petrol vapors at 150°C for 0.3 M% TiO 2 doped LaCrO 3 . And exceptionally 0.5 M% TiO 2 doped LaCrO 3 sensor showed better response for CO 2 . The reproducibility confirms the stability of 0.3 M % TiO 2 doped LaCrO 3 sensor and 0.5 M % TiO 2 doped LaCrO 3 sensor. The rapid response and recovery were recorded for both the sensors viz. 0.3 M % and 0.5 M % TiO 2 doped LaCrO 3 . Schematic of TiO 2 doped LaCrO 3 sensor with various concentrations. • Sol-gel synthesis of TiO 2 modified LaCrO 3 by citrate method. • LaCrO 3 :TiO 2 heterojunction nanocomposite thick films preparation by screen printing strategy. • The TiO 2 concentrations from 0.1 M %, to 0.7 M % investigated for gas sensing study. • Excellent gas response and selectivity for 0.3 M % TiO 2 – LaCrO 3 sensor for PV. • Rapid response and recovery for 0.3 M % TiO 2 –LaCrO 3 sensor for PV." @default.
- W4210644471 created "2022-02-08" @default.
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- W4210644471 date "2022-03-01" @default.
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- W4210644471 title "Designing of LaCrO3 − TiO2 nanocomposites p: n heterojunction-based sensor material for the selective detection of volatile petrol vapors (PV) and CO2 gas vapors" @default.
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- W4210644471 doi "https://doi.org/10.1016/j.jics.2022.100367" @default.
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