Preparation and characterization of Cd0.75PS3A0.5(H2O)y [A=Na, K and Cs]

Jeevanandam, P. ; Vasudevan, S. (1997) Preparation and characterization of Cd0.75PS3A0.5(H2O)y [A=Na, K and Cs] Solid State Ionics, 104 (1-2). pp. 45-55. ISSN 0167-2738

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Cd0.75PS3A0.5(H2O)y [A=Na, K and Cs], synthesized by the ion-exchange intercalation reaction of the insulating layered CdPS3, exhibits interesting electrical properties. The electrical properties are strongly dependent on the extent of hydration of the alkali ion which resides in the interlamellar space. In the potassium and caesium ion-exchanged compounds, y=1, the lattice expansion is ~3 Å and the electric response characteristic of a dielectric. In the as prepared A=Na compound, y=2, the lattice expansion is 5.6 Å, the compound is conducting with a DC conductance of 3×10−5 S cm−1 at 300 K. Cd0.75PS3Na0.5(H2O)y, y=2, on evacuation or on heating looses water, reversibly, to form a y=1 phase with electrical properties similar to that of the K and Cs ion exchange intercalation compounds.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Ion-exchange Intercalation; Layered Compounds; Electrical Response
ID Code:58466
Deposited On:31 Aug 2011 06:03
Last Modified:31 Aug 2011 06:03

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