Synthesis RMn2O5 (R = Gd and Sm) nano- and microstructures by a simple hydrothermal method |
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| Authors: | Gangqiang Zhu Peng Liu Mirabbos Hojamberdiev Bao Ge Yun Liu Hongyan Miao Guoqiang Tan |
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| Affiliation: | aSchool of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, PR China;bShaanxi Key Laboratory of Nano-materials and Technology, Xi’an University of Architecture and Technology, Xi’an 710055, PR China;cCollege of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, PR China |
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| Abstract: | Single-phase RMn2O5 (R = Gd and Sm) nano- and microstructures have been successfully synthesized via a simple hydrothermal process at 250 °C for 24 h using NaOH as mineralizer. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and selective area electron diffraction patterns (SAED) were used to characterize the as-synthesized GdMn2O5 and SmMn2O5 samples. The effect of NaOH concentration and the molar ratio of Mn2+/Mn7+ on the morphology and size of the final products was studied, and a possible formation mechanism of RMn2O5 (R = Gd and Sm) nanoplates and nanorods under hydrothermal conditions was proposed. |
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| Keywords: | Nanostructures Chemical synthesis Transmission electron microscopy X-ray diffraction |
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