Pulse-radiolysis study on the yield of hydrated electron at elevated temperatures

H. Shiraishi, Y. Katsumura, D. Hiroishi, K. Ishigure, Masakazu Washio

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Abstract

A pulse-radiolysis technique has been used to estimate G(eaq -) at elevated temperatures up to 250°C. Observation in pure water indicated that absorbance at λmax of eaq - increases significantly with temperature, by 1.4 times in going from 20 to 250°C, when compared at supposedly equivalent times by which most of spur decay probably finishes at each temperature. This temperature dependence was considered to arise primarily from variation in G(eaq -) itself. In another series of experiments Cd2+ was used as an eaq - scavenger. The estimated G(Cd+) in a dilute Cd2+ solution was 3.5 and 3.8 respectively at 200 and 250°C in accord with the above estimation on the temperature dependence of G(eaq -).

Original languageEnglish
Pages (from-to)3011-3017
Number of pages7
JournalJournal of Physical Chemistry
Volume92
Issue number10
Publication statusPublished - 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Shiraishi, H., Katsumura, Y., Hiroishi, D., Ishigure, K., & Washio, M. (1988). Pulse-radiolysis study on the yield of hydrated electron at elevated temperatures. Journal of Physical Chemistry, 92(10), 3011-3017.