Kinetics of electron transfer reactions in hydrothermal and supercritical water.

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The rates of several radiation-induced reactions are assessed via pulse radiolysis in order to extend a model for nuclear reactor coolant radiolysis to supercritical conditions. They find changes in radiolysis yields and significant deviations from Arrhenius behavior at 250 bar as the temperature approaches and exceeds the critical temperature of pure water. At 380 C they also observe a strong pressure dependence of the reaction rates of ions and hydrophobic species. Using a homogeneous chemistry model, they find by 350 C that the relatively mild changes in these reaction rates increase the predicted critical hydrogen concentration relative to 325 C.

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Cline, J. A.; Takahashi, K.; Marin, T. W.; Jonah, C. D. & Bartels, D. M. November 20, 2001.

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The rates of several radiation-induced reactions are assessed via pulse radiolysis in order to extend a model for nuclear reactor coolant radiolysis to supercritical conditions. They find changes in radiolysis yields and significant deviations from Arrhenius behavior at 250 bar as the temperature approaches and exceeds the critical temperature of pure water. At 380 C they also observe a strong pressure dependence of the reaction rates of ions and hydrophobic species. Using a homogeneous chemistry model, they find by 350 C that the relatively mild changes in these reaction rates increase the predicted critical hydrogen concentration relative to 325 C.

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  • Corrosion/2002 (NACE/National Association of Corrosion Engineers International), Denver, CO (US), 04/07/2002--04/12/2002

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  • Report No.: ANL/CHM/CP-106277
  • Grant Number: W-31-109-ENG-38
  • Office of Scientific & Technical Information Report Number: 797894
  • Archival Resource Key: ark:/67531/metadc741844

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  • November 20, 2001

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  • Oct. 19, 2015, 7:39 p.m.

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  • March 25, 2016, 12:04 p.m.

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Cline, J. A.; Takahashi, K.; Marin, T. W.; Jonah, C. D. & Bartels, D. M. Kinetics of electron transfer reactions in hydrothermal and supercritical water., article, November 20, 2001; Illinois. (digital.library.unt.edu/ark:/67531/metadc741844/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.