Synthesis, characterization and catalytic performance of a novel zeolite ITQ-2-like by treating MCM-22 precursor with H2O2

Bulletin of materials science

Ming Jun Jia¹  Shujie Wu¹  Ling Xu²  Jingqi Guan¹  Qiubin Kan¹  Haijun Xing¹ 

[1] College of Chemistry, Jilin University, Changchun 130023, P.R. China$$College of Chemistry, Jilin University, Changchun 130023, P.R. ChinaCollege of Chemistry, Jilin University, Changchun 130023, P.R. China$$;College of Chemistry, Jilin University, Changchun 130023, P.R. China$$College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, P.R. China$$College of Chemistry, Jilin University, Changchun 130023, P.R. ChinaCollege of Chemistry, Jilin University, Changchun 130023, P.R. China$$College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, P.R. China$$College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, P.R. ChinaCollege of Chemistry, Jilin University, Changchun 130023, P.R. China$$College of Chemistry and Chemical Engineering, Inner Mongolia University for Nationalities, Tongliao 028000, P.R. China$$

关键词: ITQ-2-like;    MCM-22;    ITQ-2;    H2O2 treatment;    methane aromatization.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

A novel zeolite material denoted as ITQ-2-like was synthesized by treating MCM-22 precursor with H₂O₂ and characterized by various physicochemical techniques (X-ray powder diffraction, transmission electron microscopy, thermogravimetric-differential thermal analyses, Fourier transform infrared spectroscopy and nitrogen adsorptionâ€�?�desorption). It was found that not only the organic template could be completely removed but also the morphology and topology structure of MCM-22 precursor was well preserved after H₂O₂ treatment. Novel zeolite material ITQ-2-like presented relatively ordered cascaded layers in a faceto-face orientation along the ð‘�?-axis and exhibited different physicochemical properties in comparison with ITQ-2 and MCM-22 prepared from the same precursor. Moreover, the catalytic behaviour and pore roles of three kinds of Mo-containing catalysts of ITQ-2-like, MCM-22 and ITQ-2 were investigated in the reaction of methane aromatization.

【 授权许可】

Unknown