access icon free Fix of Zn species in silicalite-2 via a facile crystallisation process control route

Zinc species were fixed in the silicalite-2 zeolite by a crystallisation process control method. By controlling the introduction time of Zn during the crystallisation process, the distribution of Zn species in zeolite crystals can be facilely adjusted. Particularly, as Zn species were introduced after the completion of nucleation or crystal growth, crystals with structure of silica–core and Zn–silica shell will be formed. The ratio of shell to core thickness can be easily varied by adjusting the Zn feeding time as well as controlling the recrystallisation period.

Inspec keywords: process control; crystallisation; recrystallisation; silicon compounds; nucleation; zinc; zeolites

Other keywords: silica core; recrystallisation period; shell-core thickness; zinc species; zinc feeding time; zeolite crystals; zinc-silica shell; silicalite-2 zeolite; crystal growth; Zn-SiO2; nucleation; crystallisation process control route

Subjects: Solid-liquid transitions; Cold working, work hardening; post-deformation annealing, recovery and recrystallisation; textures; Nucleation in phase transitions

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http://iet.metastore.ingenta.com/content/journals/10.1049/mnl.2020.0018
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