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Post‐Synthesis Treatment gives Highly Stable Siliceous Zeolites through the Isomorphous Substitution of Silicon for Germanium in Germanosilicates
Author(s) -
Xu Hao,
Jiang Jingang,
Yang Boting,
Zhang Lin,
He Mingyuan,
Wu Peng
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201306527
Subject(s) - germanium , silicon , substitution (logic) , thermal stability , hydrothermal circulation , zeolite , hydrothermal synthesis , crystallography , materials science , chemical engineering , nanotechnology , chemistry , catalysis , organic chemistry , metallurgy , computer science , engineering , programming language
Abstract Germanosilicates, an important family of zeolites with increasing number of members and attractive porosities, but containing a large quantity of unstable Ge atoms in the framework, meet with great obstacles in terms of limited thermal and hydrothermal stability when it comes to practical use. A facile stabilization method thus has been developed to substitute isomorphously Ge atoms for Si atoms, giving rise to ultrastable siliceous analogues of the pristine germanosilicates.