Structure orienting role of germanium in zeolite synthesis
This paper deals with the synthesis results obtained from pure silica and (Si, Ge) systems in presence of hexamethonium cations, Kryptofix2,2,2 and 5-azoniaspiro4,5decane derivative cations as organic structure directing agents (OSDA) in hydroxide or fluoride media. The obtained new materials Mu-31, IM-9, IM-10 (UOZ), IM-11(LTA), IM-12 (UTL) all contain D4MR units, confirming the orienting effect of the germanium and/or the fluoride anions towards this small cage. Surprisingly, the extra-large pore IM-12 zeolite could not be obtained in the fluoride medium.
J.-L. Paillaud Y. Lorgouilloux B. Harbuzaru P. Caullet J. Patarin N. Bats
Laboratoire de Materiaux a Porosite Controlee, UMR CNRS 7016, ENSCMu, UHA, 3 rue Alfred Werner, 6809 Institut Francais du Petrole, CEDI Rene Navarre, BP3, 69590 Vernaison, France
国际会议
北京
英文
2007-08-12(万方平台首次上网日期,不代表论文的发表时间)