Accelerated crystallization of zeolites via hydroxyl free radicals

• Published in: Science (American Association for the Advancement of Science) Vol. 351; no. 6278; pp. 1188 - 1191
• Main Authors: Feng, Guodong, Cheng, Peng, Yan, Wenfu, Boronat, Mercedes, Li, Xu, Su, Ji-Hu, Wang, Jianyu, Li, Yi, Corma, Avelino, Xu, Ruren, Yu, Jihong
• Format: Journal Article
• Language: English
• Published: United States American Association for the Advancement of Science 11.03.2016; The American Association for the Advancement of Science
• Subjects: Aluminum; Anions; Crystallization; Fentons reagent; Free radicals; Hydroxyl radicals; Irradiation; Minerals; Ultraviolet radiation; Zeolites

In the hydrothermal crystallization of zeolites from basic media, hydroxide ions (OH⁻) catalyze the depolymerization of the aluminosilicate gel by breaking the Si,AI–O–Si,AI bonds and catalyze the polymerization of the aluminosilicate anions around the hydrated cation species by remaking the Si,AI–O...