Abstract. A tailor-made encapsulated catalyst with a H–B zeolite shell has been directly synthesized over Co/Al2O3 pellets to form a core–shell structure without pinholes and cracks by a hydrothermal synthesis method. Pretreatment of the Co/Al2O3 pellets with reflux of hot TEAOH solution can clean and corrode the pellet surface due to its strong basicity, and can enlarge the mean pore s…
Abstract. Photodegradation of SF6 was performed on the surface of polyisoprene (PI) based on a brand new mechanism of “controlled release of radicals”. Effective decomposition of SF6 (60% of SF6 was degraded in 4 h) was achieved due to the highly reductive radicals (mainly allylic radicals and excited C C bond) which were generated from the photolysis of PI. No toxic fluoride was detect…