Effects of sintering temperature on structural, electrical and ferroelectric properties of La2Ti2O7 ceramics

Laser sintering of Al2O3‐based green ceramics prepared by different pre‐sintering temperatures

“…Ceramics pre‐sintered at laser frequency of 60 KHz exhibit a haphazard arrangement of cylindrical‐like grains (as shown in Figure 6G), which further decreases in size with further increase of laser frequency (as shown in Figure 6G). Dense microstructure is formed with reduced porosity, 23 and packed cylindrical‐like grains separated by clear grain boundaries are observed in Figure 6G. Conversely, the microstructure features of the sintered surface by laser sintering under different laser scanning speed are completely opposite to that under different laser frequency.…”

Inter-plane 2D/2D ultrathin La2Ti2O7/Ti3C2 MXene Schottky heterojunctions toward high-efficiency photocatalytic CO2 reduction

“…In the low frequency, peaks at 114, 169, 208, 253, 292 and 310 cm -1 were assigned to the La-O vibrations. Meanwhile, high frequency peaks at 529, 586, 623 and 662cm -1 can be indexed to vibrations of the distorted [TiO6] octahedron [46]. Moreover, the peaks positions at approximately 789 and 844 cm -1 were attributed to stretching of Ti-O vibrations, respectively [47].…”

Enhanced Humidity Sensing Performance of the La2Ti2O7/La(OH)3 Nanocomposite

“…La 2 Ti 2 O 7 , a metal oxide containing La, has been widely studied and applied in many fields, such as photocatalytic hydrogen production and photocatalytic degradation, because of its high photocatalytic activity and good chemical properties. In addition, La 2 Ti 2 O 7 is often used as sensing material for detecting strain, vibration, and noise due to its high Curie temperature, high dielectric constant, and good piezoelectric and ferroelectric properties. − However, La 2 Ti 2 O 7 as a humidity sensing material has been rarely reported.…”