One-pot synthesis of La-doped SnO₂ layered nanoarrays with an enhanced gas-sensing performance toward acetone

Abstract

Acetone-sensing properties were greatly enhanced by La-doped SnO2 nanoarray with a novel nanostructure of double nanorod layers synthesized by hydrothermal method.

Influence of La3+ Substitution on Structure, Morphology and Magnetic Properties of Nanocrystalline Ni-Zn Ferrite

“…Whereas the average crystallite diameter of the powder estimated from the intense (311) peak of XRD diffraction pattern using the Scherrer’s Eq (2): Where D is the average crystalline dimension perpendicular to the reflecting phases, λ is the wavelength of the X-ray source which is taken as 1.5406 Å, and B is the full width at half maximum (FWHM) and θ is the Bragg’s angle [45, 46]. The calculated values for lattice constant, planner distance and crystallite size at (311) peaks are tabulated in Table 1.…”

Exploration of catalytic performance of nano-La2O3 as an efficient catalyst for dihydropyrimidinone/thione synthesis and gas sensing

“…La 2 O 3 is an excellent material with p-type semiconduction being applied in diverse applications [24][25][26][27][28][29]. Various types of pure and fabricated semiconducting materials have been found to exhibit goodto-excellent sensing responses to different hazardous and greenhouse gases [30][31][32][33][34]. The main object to sense these gases by various materials is to investigate the better sensing material at desired temperature.…”

The Effect of Eu Doping on Microstructure, Morphology and Methanal-Sensing Performance of Highly Ordered SnO2 Nanorods Array

“…In recent years, many surveys have shown that the rare earth elements doped into the metal oxide structure can overcome disadvantages and improve the gas response, such as poor sensitivity and selectivity of sensors [31]. The effects of doping La [32], Yb [33], Pr [34], Ce [35], and Sm [36] have been reported, which indicate positive effect on enhancing gas sensing of SnO 2 nanomaterials. Europium ion with 4f 7 electronic configuration usually exists in the form of triply ionized ion (Eu 3+ ) [37], which shows fast oxygen ion mobility and predominant catalytic properties.…”