辐射环境中的界面化学反应

Interface reactions in radiation environment

辐射环境中的界面化学反应是指在辐照条件下,水的辐解产物在固液非均相体系中的反应过程,以及固体材料本身发生的物理化学变化。围绕这一类界面反应进行综述,以水的重要辐解产物H2O2为例,其在固液体系中可能发生氧化溶解(腐蚀)、催化分解及溶液中的Haber-Weiss反应或类芬顿反应中的一种或几种,详细讨论了在不同体系中的反应动力学、热力学参数、反应机理和影响因素等。

Research on interface reactions in radiation environment is focused on the reaction of the radiolysis products of water and the physical/chemical changes of solid materials in the heterogeneous system.In this paper,we review the research on the reactivity of H2O2,the typical radiolysis product of water,which may trigger one or two reactions among oxidative dissolution(corrosion),catalytic decomposition,and Haber-Weiss or Fenton-like reaction in aqueous phase.The kinetics,thermodynamics,reaction mechanism,and governing factors of the abovementioned reactions will be discussed later in detail.