Abstract
A novel mesoporous material, named LRS-2, was obtained by isomorphic Al substitution and delamination of a naturally occurring kenyaite silicate layer. Delamination procedure consisting of kenyaite layers exfoliation with cetyltrimethylammonium [C16H33(CH3)3N+] alkyl chain in the presence of tetrapropylammonium hydroxide, followed by sonication step, and calcination at 700 °C to remove the organics. After delamination, surface area of LRS-2 material was increased by a factor of ca. 12.5 (30 vs. 377 m2 g−1) consisting mostly in highly accessible external surface. Its good activity for the test reaction of cumene cracking was compared of zeolitic catalyst, H-ZSM5, and it constitutes a promising ecofriendly candidate for the cracking of larger hydrocarbons.
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