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Clinoptilolite with surface-enhanced functionality for radionuclide and inorganic pollutants removal
Chmielewská Eva Majzlan Juraj Bujdoš Marek 《Journal of Radioanalytical and Nuclear Chemistry》2022,331(9):3495-3504
Journal of Radioanalytical and Nuclear Chemistry - Aqueous pollutants of cesium, iodide, lead, zinc and chromate ions adsorbed on natural and Ag+(Pb2+) – or NH4+- exchanged clinoptilolite... 相似文献
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High-temperature phase transitions in CsH2PO4 under ambient and high-pressure conditions: a synchrotron x-ray diffraction study 总被引:1,自引:0,他引:1
Botez CE Hermosillo JD Zhang J Qian J Zhao Y Majzlan J Chianelli RR Pantea C 《The Journal of chemical physics》2007,127(19):194701
To clarify the microscopic origin of the temperature-induced three-order-of-magnitude jump in the proton conductivity of CsH(2)PO(4) (superprotonic behavior), we have investigated its crystal structure modifications within the 25-300 degrees C temperature range under both ambient- and high-pressure conditions using synchrotron x-ray diffraction. Our high-pressure data show no indication of the thermal decomposition/polymerization at the crystal surface recently proposed as the origin of the enhanced proton conductivity [Phys. Rev. B 69, 054104 (2004)]. Instead, we found direct evidence that the superprotonic behavior of the title material is associated with a polymorphic structural transition to a high-temperature cubic phase. Our results are in excellent agreement with previous high-pressure ac impedance measurements. 相似文献
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