An alternative gas sensor material: Synthesis and electrical characterization of SmCoO3

Anomalous Thermal Expansion of HoCo0.5Cr0.5O3 Probed by X-ray Synchrotron Powder Diffraction

“…Rare earth ( R ) cobaltites R CoO 3 and chromites R CrO 3 with perovskite structure due to their high electrical conductivity, specific magnetic properties, as well as significant electrochemical and catalytic activity are considered as prospective electrode and interconnect materials for solid oxide fuel cells (SOFC) [1–3], thermoelectric and magnetocaloric materials [4–6], catalysts and humidity and gas sensors [7–9]. Currently R CoO 3 and R CrO 3 compounds and solid solutions on their basis are attracting renewed research interest aroused by their potential application as multifunctional materials [10–13].…”

CO2 gas sensing response of YPO4 nanobelts produced by a colloidal method

“…To evaluate the concentration of CO 2 , chemical sensors based on K 2 CO 3 [19], K 2 CO 3 -polyethylene glycol [20], CuO-BaTiO 3 [21], Na 3 Zr 2 Si 2 PO 12 (NASICON) [22][23][24][25], SmCoO 3 [26] and CoSb 2 O 6 [27] have been studied. Among these materials NASICON has been one of the most studied, which suggests that other phosphates may be suitable for this application.…”

Synthesis of SmBaCo2O6−δ powder by the combustion process using Co3O4 as precursor

“…Then, from about 385 to 700 • C, the undecomposed samarium nitrate decomposed to samarium oxide. From 700 • C to 792 • C, a rapid mass decrease and a large endothermic peak can be observed, which is mainly associated with the formation of BaCoO 3−ı along with the evaporation of CO 2 , according to reaction (1), and reaction (2) (in this case, 0.5 ≤ x ≤1) also occurred [13]. On increasing the temperature from 792 • C to 900 • C, reactions (2) and (3) occurred, dominating the loss of weight.…”