Modified UiO-66-NH2 metal–organic frameworks (MOFs) with Melamine for Knoevenagel condensation
محل انتشار: بیست و یکمین سمینار شیمی معدنی انجمن شیمی ایران
سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 629
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شناسه ملی سند علمی:
IICC21_211
تاریخ نمایه سازی: 5 آذر 1398
چکیده مقاله:
In recent years, metal-organic frameworks (MOFs) have attracted considerable attention due to their special characteristics such as hybrid compositions, diverse networks, tunable porosity and tailorable surfaces [1, 2]. The application of MOFs as porous heterogeneous catalysts alternative or complementary to microporous zeolites is especially interesting, since the pore size and chemical functionality of MOFs can be modulated within a wider range [3,4].In this work, Zr-based MOFs,UiO-66-NH2, was used for post-synthesis by melamine(UiO-66-NH2-Mlm) (Fig. 1) to provide higher content of primary amine for Knoevenagel reaction. The modified MOFs were characterized with XRD, FT-IR, TEM, SEM, BET, TGA, XPS. The effective parameters in Knoevenagel reaction such as catalyst type, amount, and solvent type were investigated. The modified MOFs exhibited excellent catalyst activities in heterogeneous phase due to their large surface area and porosity.
نویسندگان
Amir Reza Abbasi
Faculty of Chemistry, Razi University, Kermanshah ۶۷۱۴۹-۶۷۳۴۶, Iran.
Mino Abdizad
Faculty of Chemistry, Razi University, Kermanshah ۶۷۱۴۹-۶۷۳۴۶, Iran.
Ghobad Mansouri
Department of Chemistry, Payame Noor Universtiy, PO BOX ۱۹۳۹۵-۳۶۹۷,Tehran, Iran.