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Mechanical activation of MoS2 + Na2O2 mixtures
Authors:J Temuujin  KJD MacKenzie  G Burmaa  D Tsend-Ayush  Ts Jadambaa  A van Riessen
Affiliation:1. Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar 51, Mongolia;2. Centre for Materials Research, Department of Imaging and Applied Physics, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia;3. School of Chemical and Physical Sciences, Victoria University of Wellington, New Zealand;4. Centre for New Materials, Mongolian University of Science and Technology, Ulaanbaatar 46, Mongolia;1. Key Laboratory of Petroleum and Gas Fine Chemicals, Educational Ministry of China, College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, PR China;2. Key Laboratory of Functional Polymers, Xinjiang University, Urumqi 830046, PR China;1. Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia;2. Department of Magnetometry, Institute of Measurement Science, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia;3. Department of Geology of Mineral Deposits, Faculty of Natural Sciences, Comenius University, Mlynská dolina, 842 15 Bratislava, Slovakia;1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Mechanical and Industrial Engineering Department, College of Engineering, Qatar University, P.O. Box 2713, Doha, Qatar;3. Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;4. Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;5. Advanced Materials Research Center, Materials Engineering Department, Najafabad Branch, Islamic Azad University, Isfahan, Iran
Abstract:A study of the mechanochemical activation of molybdenum ore concentrate (MoS2) with sodium peroxide (Na2O2) shows that sodium molybdate dihydrate (Na2MoO4 · 2H2O) is the final crystalline product. The mechanochemical formation of sodium molybdate dihydrate is evidenced by XRD, 23Na MAS NMR and the increasing solubility of the molybdenum in water as the oxidative reaction proceeds.
Keywords:
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