The mechanisms on the heterogeneous reactions in atmospheric ozone depletion

Certain reactions are catalysed on the polar stratospheric clouds to produce HOCl and Cl-2 which can be turned into Cl by the UV light from the sun, and Cl is believed to be the arch-criminal in the atmospheric ozone depletion. The traditional ion-catalysis mechanism was based on the suggestion by Molina, a Nobel Prize laureate. However, more and more facts have indicated that this mechanism needs to be revised. Zhao Xin-Sheng' s group first proposed a mechanism of structure catalysis which relies on the surface structure of the ice. The mechanism has been confirmed by new experimental and theoretical studies. This paper briefly reviews some key development in recent years.Chemistry, PhysicalSCI(E)中文核心期刊要目总览(PKU)中国科学引文数据库(CSCD)2,SI936-9382