کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
75407 49114 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A novel approach to synthesize ZSM-23 zeolite involving N,N-dimethylformamide
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
A novel approach to synthesize ZSM-23 zeolite involving N,N-dimethylformamide
چکیده انگلیسی

A novel synthesis approach for ZSM-23 zeolite involving N,N-dimethylformamide (DMF) was reported. Multi-techniques, such as XRD, XRF, SEM, TG–DTA, FT-IR, and GC–MS, were employed to investigate the roles of DMF during the synthesis process. It was found that DMF served as template precursor and hydrolyzed to produce dimethylamine (DMA), which acted as the actual structure-directing agent in the crystallization period of ZSM-23 zeolite. At the same time, the complexes of DMF with aluminum ion were formed in the synthesis system. The complexation effect of DMF with aluminum ion promoted nucleation and crystallization of the zeolite. Due to the synergistic effects of the complexation effect between aluminum ion and DMF and the structure-directing effect of DMA in-situ generated by hydrolyzation of DMF, ZSM-23 zeolite could be synthesized in a broad SiO2/Al2O3 range.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 134, Issues 1–3, October 2010, Pages 203–209
نویسندگان
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