Synthesis and characterization of zeolite mazzite analogue in Na<Subscript>2</Subscript>O–Al<Subscript>2</Subscript>O<Subscript>3</Subscript>–SiO<Subscript>2</Subscript>–Piperazine–H<Subscript>2</Subscript>O期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Synthesis and characterization of zeolite mazzite analogue in Na2O–Al2O3–SiO2–Piperazine–H2O

Authors:	H. Xu P. Dong L. Liu J.-G. Wang F. Deng J.-X. Dong

Affiliation:	(1) Graduate School of the Chinese Academy of Sciences, Beijing , 100039, P. R. China;(2) Research Institute of Special Chemicals, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, P. R. China;(3) State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, P. R. China;(4) State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China

Abstract:	Zeolite Mazzite (MAZ) analogue was synthesized directly using piperazine as a structure directing agent. The reactive gel composition used was (5.0–7.0) piperazine:(6.0–7.0) Na₂O:Al₂O₃:20.0SiO₂:400H₂O. Using this composition, the reaction time was shortened greatly to 4 days and the crystallization time was reduced as well. The DTA data showed that piperazine, in as-synthesized zeolite omega decomposed easily. The decomposition of the piperazine occurred at 400–480°C. NH₃-TPD analysis proved that zeolite H-omega from piperazine had strong surface acidity with ammonia desorption temperature up to 590°C.

Keywords:	Zeolite mazzite analogue Piperazine Synthesis Characterization
本文献已被 SpringerLink 等数据库收录！