Abstract
A series of nanohybrid materials with different (CsCl)n normalities (n=0.05N, 0.1N, 0.3N, 0.5N, 1N, 2N and 3N) was synthesized by indirect intercalation of nacrite. Systematic and kinetic X-ray diffraction surveys reveal that the optimal nanohybrid with the highest intercalation rate (τ=0.943) and degree of reaction (α=0.860) corresponds to (n=0.3N) normality value of aqueous CsCl solution and was labeled nacrite-[(CsCl)n=0.3N]. Its half-unit cell structural formula as deduced by agreement between experimental and simulated patterns (Rp=7.30%) was Si2Al2O5(OH)4·CsCl·H2O with a d002-value equals to 1.05nm. The atomic composition and the vibrational description of the nacrite-[(CsCl)n=0.3N] nanohybrid was made respectively by means of energy-dispersive X-ray spectroscopy coupled to transmission electron microscope and infrared spectroscopy techniques. The electrochemical impedance spectroscopy reveals that nacrite-[(CsCl)n=0.3N] nanohybrid material heated to higher temperatures exhibits an excellent ionic conductivity (σac~10−2S·m−1) and can be classified as a superionic conductor.
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