An efficient approach for the direct synthesis of lithium niobate powders |
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| Affiliation: | 1. South Westfalia University of Applied Sciences, 58095 Hagen, Germany;2. Chair of Electronic Devices, Hagen University, 58097 Hagen, Germany;3. Inst. of Solid State and Semiconductor Physics NAS Belarus, 220072 Minsk, Belarus;4. Nuclear Physics Institute, ASCR, 25068 Řež, Czech Republic;5. Departamento de Fisica, Universidad Autónoma Metropolitana-Iztapalapa, PO Box 55-534, 09340 México, D.F, Mexico;6. Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, 30167 Hannover, Germany;1. School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, PR China;2. National Key Lab of Power Sources, Tianjin Institute of Power Sources, Tianjin 300381, PR China;3. Beijing Key Laboratory of Environment, School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, PR China;1. Advanced Optical Technology (AOT) Laboratory, Department of Electrical and Computer Engineering, Faculty of Engineering, Naresuan University, Phitsanulok 65000, Thailand;2. Research Center for Academic Excellence in Applied Physics, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand;3. Research Center for Academic Excellence in the Petroleum, Petrochemicals and Advanced Materials, Naresuan University, Phitsanulok 65000, Thailand;4. Synchrotron Light Research Institute, Nakhon Ratchasima 30000, Thailand;5. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand;1. Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Sciences, Hubei University, Wuhan, 430062, China;2. The Bradley Department of Electrical and Computer Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061-0356, USA;1. Department of Applied Science, University of Technology, 10066, Baghdad, Iraq;2. Laser and Optoelectronics Department, University of Technology, 10066, Baghdad, Iraq;3. Institute of Nano Electronic Engineering, University Malaysia Perlis, 01000, Kangar, Perlis, Malaysia |
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| Abstract: | Lithium niobate powders from the raw powders of Li2CO3 and Nb2O5 are directly synthesized by a combustion method with urea as fuel. The synthesis parameters (e. g., the calcination temperature, calcination time, and urea-to-(Li2CO3 + Nb2O5) quantity ratio) are studied to reveal the optimized synthesis conditions for preparing high-quality lithium niobate powders. In our present work, it is found that a urea-to-(Li2CO3 + Nb2O5) ratio close to 3, calcination temperature at 550∼600 °C and reaction time around 2.5 h may lead to high-quality lithium niobate powders. The microstructure of synthesized powders is further studied; a possible mechanism of the involved reactions is also proposed. |
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