Efficient gas sensitivity in mixed bismuth ferrite micro (cubes) and nano (plates) structures

Morphology-inspired low-temperature liquefied petroleum gas sensors of indium oxide

“…In continuation to our ongoing research activities based on LPG sensors [30,31], herewith, In 2 O 3 morphologies viz. cracked-cubes and maize-corns were firstly synthesized onto glass substrate with the help of co-ordination chemistry and Pearson's acid-base concept and further envisaged in LPG sensor application.…”

Ag modified bismuth ferrite nanospheres as a chlorine gas sensor

“…When Cl 2 is injected, the reactions in eqn (6)-(9) occur. Electrons are captured by Cl 2 as shown in eqn (6) and (7), resulting in an increase in the number of holes. O 2 À ions are consumed by Cl 2 as displayed in eqn (8).…”

“…It was reported that BFO exhibited excellent gas-sensing properties. [7][8][9] Perovskite BFO, as p-type oxide semiconductors, displays more stable and reliable gas-sensing properties than binary metal oxides, such as ZnO, CuO and SnO 2 , resulting from the fact that the ternary oxides consists of two differently sized cations. 10,11 At the same time, BFO possesses distinctive surface reactivity, oxygen adsorption and relatively narrow band gap (2.19 eV) which are advantageous for enhancing gas selectivity, decreasing the humidity dependence of sensor signals to negligible levels, being conducive to transportation of valence electrons and improving recovery speed.…”

Effect of Preheating Temperature on Synthesis of Pure BiFeO3 via Sol–Gel Method

“…The sol-gel method is a very effective method for fabricating a uniform ultrafi ne porous powder and can also be moved up to accommodate industrial-scale production [28]. There are several techniques for sol-gel method as glycol-gel reaction [29][30][31], Metal complex [32][33][34][35], modifi ed Pechini [36], Polymer complex solution [37][38][39]. Among them, glycol-gel reaction considers the best because of low chemical used in this reaction and several roles of ethylene glycol [40].…”