Reduction kinetics of hydrogen ion immobilized electrostatically on polystyrene latex |
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| Affiliation: | 1. Graduate School of Science and Technology, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan;2. Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan;1. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyou-ku, Tokyo 113-8657, Japan;2. Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan;3. Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan;1. Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan |
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| Abstract: | The reduction current of the hydrogen ion immobilized electrostatically by the sulfonated polystyrene latex charge showed much larger temperature dependence of an Arrhenius type than that of a free hydrogen ion when the latex suspension included no supporting electrolyte. The activation energy, 14 kJ mol−1, suggests that the immobilization should be attained by a local potential minimum and a maximum rather than a monotonic attractive potential between the hydrogen ion and the latex particle. The temperature dependence decreased with the addition of supporting electrolyte. The mono-dispersed latex particle was synthesized so that the charge number (27 200e) became large. Its diameter was 134 nm and the uniformity ratio was 1.01. |
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