Synthesis and Characterization of the All‐Silica Pure Polymorph C and an Enriched Polymorph B Intergrowth of Zeolite Beta

Previously elusive, the all-silica pure polymorph C of zeolite beta and a material enriched with polymorph B (see picture) are prepared by high-throughput (HT) synthesis in the presence of a cationic organic structure-directing agent (SDA). The presence of K+ ions is essential for the formation of these materials; furthermore, a high ratio of OH− ions to silicon atoms favors the crystallization of polymorph C. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z603027_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.