Carboxamide supported on CoFe2O4 nanoparticles: An efficient and magnetically-recoverable catalyst for the synthesis of sulfides and oxidation reactions

سال انتشار: 1398
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 340

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شناسه ملی سند علمی:

ICCO02_032

تاریخ نمایه سازی: 3 اردیبهشت 1399

چکیده مقاله:

Catalyst recovery and reusability are the two most important features for many catalytic processes, most heterogeneous systems require a filtration or centrifugation step or a tedious workup of the final reaction mixture to recover the catalyst. However, magnetically supported nanocatalysts can be recovered with an external magnet. Herein, we have designed a new and effective synthesis of Ni anchored carboxamide functionalized CoFe2O4 nanoparticles and its application as a heterogeneous catalyst in the oxidation of sulfides, oxidative coupling of thiols (scheme 1). The catalysts were easily isolable by magnetic decantation from the reaction flask and reused several times with almost constant efficacy.The prepared nanohybrids characterized by different techniques such as FT-IR, SEM, EDX, XRD, TGA and VSM. Scheme 1. Carboxamide Complexes of Nickel supported on heterogeneous nanocatalyst

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نویسندگان

Mina Zohrevandi

Faculty of chemistry, University of Kurdistan, Kurdistan, Iran

Roya Mozafari

Faculty of chemistry, University of Kurdistan, Kurdistan, Iran

Mohammad Ghadermazi

Faculty of chemistry, University of Kurdistan, Kurdistan, Iran