Diffusion of bromide,iodide and thallium ions at various temperatures |
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| Affiliation: | 1. Institut de Science des Matériaux de Mulhouse IS2M, UMR CNRS 7361, UHA, 15, rue Jean Starcky, 68057 Mulhouse Cedex, France;2. Laboratoire de Matériaux, Catalyse, Environnement et Méthodes analytiques (MCEMA-CHAMSI), EDST, Université Libanaise, Campus Hariri, Hadath, Beyrouth, Lebanon;3. Aix-Marseille Université, CNRS, Institut de Chimie Radicalaire ICR, UMR 7273, 13397 Marseille, France;4. Laboratoire CRISMAT, CNRS-ENSICAEN, UMR 6508, 6 Bd Maréchal Juin, Cedex 4, Caen 14050, France;5. Université de Versailles Saint Quentin, Institut Lavoisier de Versailles, ILV, UMR CNRS 8180, 45 Avenue des Etats-Unis, 78035 Versailles Cedex, France;1. State Key Laboratory of Environment-friendly Energy Materials, Southwest University of Science and Technology, Mianyang, PR China;2. Luzhou North Chemical Industries Co., Ltd., Luzhou, PR China;1. Key Laboratory of Oil & Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, China;2. College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, 830046, China;3. Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, China;1. Nanotechnology and Advanced Materials Laboratory, Department of Electrical Engineering, Technological-Educational Institute of Western Greece, GR-26334 Patras, Greece;2. Physics Department, University of Patras, 26500 Patras, Greece;3. Brite Hellas S.A., Solar Technologies, Patras Science Park, Platani area Patra, 26504, Greece;4. Department of Mechanical Engineering, Technological-Educational Institute of Western Greece, GR-26334 Patras, Greece;1. Research institute of Sustainable Manufacturing System Intelligent Sustainable Materials R&D Group, Korea Institute of Industrial Technology, 89 Yangdaegiro-gil, Ipjang-myeon, Seobuk-gu, Cheonan-si, Chungcheongnam-do, 331-822, Republic of Korea;2. Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea |
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| Abstract: | ![]()
Self-diffusion of bromide, iodide and thallium ions has been studied in NH4Br, NaI and Tl2SO4 respectively over a temperature range of 25–50°C using agar gel medium. Activation energy for the process of diffusion in the above systems is computed from the experimental and theoretical diffusion coefficient data obtained by the zone-diffusion technique and Onsager's equation respectively. A comparison of theoretical and experimental activation energies shows a good agreement in the cases of iodide and thallium ions while the experimental activation energy is found to be lower than theoretical in the case of bromide ions. |
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