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Publication
Journal of Physical Chemistry
Paper
Kinetic studies of metal hydroxide intercalation into tantaium disulfide
Abstract
The rate of intercalation of KOH and NaOH into 2s TaS2 in aqueous solution has been studied as a function of hydroxide concentration (y mol per mol of TaS2) and in the temperature range 2-100° in a constant volume of solution. For y≤ 0.5, the rate follows first order until all the hydroxide is consumed but the intercalated product is a mixture of stages; for y > 0.5, the-end product is of stage I intercalation but the first-order rate law is obeyed only up to t′ of the total time (t′ < t) of reaction and thereafter exhibits a complex behavior with a decreased rate. The data are discussed in terms of the theory of heterogeneous reactions in solution and plausible mechanisms are proposed for the observed falling off of first-order rate and for the process of intercalation.