Developing a material with a new morphology is very important for improving the functional performance and finding new applications. Monoclinic samarium oxysulfate (Sm2O2SO4) nanoplates were first prepared using a hydrothermal process followed by a posta??annealing treatment of an asa??synthesized Sm2(OH)4SO4?·2H2O plate at 450 ?°C. The fundamental physicochemical properties were examined by scanning electron microscopy, higha??resolution transmission electron microscopy, Rietveld Xa??ray diffraction crystallographic data analysis, thermogravimetric analysis/differential scanning calorimetry, Fourier transforma??infrared spectroscopy, Raman spectroscopy, ultravioleta??visiblea??NIR absorption, and Xa??ray photoelectron spectroscopy.
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