Thermal conductivity of Aurivillius compounds Bi2WO6, SrBi2Ta2O9, and Bi4Ti3O12

Direct observation of oxygen-vacancy formation and structural changes in Bi2WO6 nanoflakes induced by electron irradiation

“…where I , k , e , b , r 0 , and Δ E are the beam current, thermal conductivity, electron charge, sample radius, beam radius, and the total energy loss per electron in a sample of thickness d , respectively. For the irradiation experiment of an individual nanoflake described above, the incident beam size is matched with the irradiated specimen, and the maximum temperature increase is ca 1.2 °C when assuming d = 10 nm, and k = 2.65 W·K −1 ·m −1 [32]. Apparently, the heating effect of the electron-beam irradiation, in this case, is far too low to decompose Bi 2 WO 6 nanoflakes.…”

Recent advances in spinel ferrite-based magnetic photocatalysts for efficient degradation of organic pollutants

“…Bi 2 WO 6 is often regarded the simplest member of the Aurivillius family with one perovskite layer in its molecular structure (Tachibana 2015), its excellent visible light response ability makes itself a good candidate for photocatalytic purposes. However, its high charge carrier recombination greatly reduced its photocatalytic activity, thus greatly restricting its practical application potential.…”

Giant Negative Electrocaloric Effect Over an Ultra-Wide Temperature Region in Relaxation Frozen State Ferroelectrics

“…ρ = 5.4 g cm −3 measured by Archimedes method. Due to the lack of reported heat capacity data of BTAO, the temperature dispersions of the heat capacity of Bi 4 Ti 3 O 12 matrix materials previously reported were used to calculate, [5][6][7] which were 100.8 J kg −1 K −1 at −180 °C and 281.6 J kg −1 K −1 at 80 °C, respectively, and the heat capacity was assumed to be a linear variation over the temperature range (See Figure S8).…”