Preparation and gas sensing properties of nanocrystalline La-doped CoTiO3

Combinatorial and High‐Throughput Materials Science

“…[337] The experimental setup and HT analysis with impressive visualization in the screening of sensor properties on application of a sequence of pollutants has been reported by Koplin et al [338] HT screening with gas sensor systems has also been explored in various applications by the research group of Yamada. They combined, for example, different gas-sensing semiconductors for the rapid analysis of benzene derivatives.…”

Preparation and Gas Sensing Characteristics of Nanoparticulate p‐Type Semiconducting LnFeO3 and LnCrO3 Materials

“…Further information can be found in earlier work. [23,28] The use of fit functions reduces the complex impedance function describing the electrical properties of each material to one value for the resistance, R, and one for the capacitance C, respectively (Fig. 3).…”

Preparation of gas sensing CoTiO3 nanocrystallites using EDTA as the chelating agent in a sol–gel process

“…However, the particles showed irregular polyhedron grain shape with unclear grain boundary, which was due to agglomeration. Another spherical CoTiO 3 nanocrystalline was obtained by the polyol method [14] which is fundamentally based on the solgel process. The obtained nanocrystallines showed uniform grain shape with a much wider particle size distribution, ranging from 30 nm to 70 nm.…”

“…Nanostructure CoTiO 3 for gas detection was first discovered by Chu Xiangfeng [13], and its sensitivity value was 15 toward 100 ppm ethanol. Ulrich Siemon prepared metal ion doped nano-CoTiO 3 by the polyol method, the obtained sensitivity was improved to 4-fold higher than the former toward only 40 ppm ethanol [14]. The latest study showed that 2 at% K-doped CoTiO 3 nanoparticles additionally exhibit good stability, excellent tolerance toward oxygen and humidity, together with low working temperature [15].…”