マクロ孔を有するゼオライト成形体の作製

高橋 亮治; 佐藤 智司; 袖澤 利昭; 西野 弘展; 谷地 明幸

doi:10.2109/jcersj.114.421

Ceramic letter

Synthesis of Monolithic Zeolites with Macropores

Ryoji TAKAHASHI, Satoshi SATO, Toshiaki SODESAWA, Hironobu NISHINO, Akiyuki YACHI

Author information

Keywords: Monolithic zeolite with through-macropores, Bimodal porous silica gel, Distinct trimodal pore structure

JOURNAL FREE ACCESS

2006 Volume 114 Issue 1329 Pages 421-424

DOI https://doi.org/10.2109/jcersj.114.421

Details

Abstract

Monolithic polycrystalline zeolites with through-macropores were prepared by steam treatment of bimodal porous silica gel monolith in the presence of tetrapropylammonium hydroxide, where the bimodal porous silica gel was prepared by inducing phase separation during sol-gel process. The silica skeleton with mesopores was transformed into polycrystalline zeolites maintaining continuous macropore morphology and monolithic shape. In the zeolites, there are three different pores arranged hierarchically: through-macropores originally existed in the precursor silica gel, small macropores at interstitial of zeolite crystallites, and micropores in zeolite framework.

Corresponding author

Register with J-STAGE for free!