Formation and characterization of samarium oxide generated from different precursors

Structural aspects of displacive transformations: what can optical microscopy contribute? Dehydration of Sm2(C2O4)3·10H2O as a case study

“…TG has shown that heating Sm 2 (C 2 O 4 ) 3 Á10H 2 O in air leads to the loss of four water molecules at temperatures below 70 C. This results in the formation of a single-phase product, Sm 2 (C 2 O 4 ) 3 Á6H 2 O. These findings agree with literature reports that the lanthanide oxalate decahydrates usually release four water molecules during the first stage of dehydration, forming hexahydrates (Fuller & Pinkstone, 1980;Hussein et al, 2003).…”

“…The six-membered ring is still present in the structure but its shape is quite different from that of the decahydrate: instead of being practically hexagonal, it is rectangular. These hexahydrates were obtained by continuous heating (from one week to one month) of a mixture of lanthanide and sodium oxalates at 120-150 C. Sm 2 (C 2 O 4 ) 3 Á6H 2 O was reported to form as an intermediate product on thermal decomposition of Sm 2 (C 2 O 4 ) 3 Á10H 2 O, but the crystal structure of this compound was not studied (Fuller & Pinkstone, 1980;Hussein et al, 2003). We are not aware of any papers describing the Sm 2 (C 2 O 4 ) 3 Á6H 2 O crystal structure.…”

Effect of Oxidation Temperature on Physical and Electrical Properties of Sm2O3 Thin-Film Gate Oxide on Si Substrate

“…The Si-Si vibration mode band was located at 567 cm À1 for all samples, broadening as the oxidation temperature was increased. For oxidation temperature of 600°C, Sm-O vibration modes were detected at 409 cm À1 , 45 45 However, these peaks shifted or broadened as the oxidation temperature was further increased to 700°C, 800°C, and 900°C. The peaks for the 700°C, 800°C, and 900°C samples at 482 cm À1 and 502 cm À1 broadened as the temperature was increased.…”

Sm2O3 nanoparticles green synthesis via Callistemon viminalis' extract

“…In that light, Sm2O3 meso-and nanostructures with different shapes; nanoparticles/nanospheres, nanowires, nanoroll sticks, nanorods, nanoplatelets and nanofibres [13][14][15][16][17][18] have been prepared using a variety of physical and chemical process methodologies such as sputtering, laser-induced deposition, thermal decomposition, high vacuum nanocasting using mesoporous silica as templates, hydrogen plasma-assisted growth, soft-chemistry based processes, sol-gel synthesis using different chemical precursors, spray pyrolysis, hydrothermal synthesis, electrospinning and microwave synthesis [19][20][21][22][23][24][25][26].…”