عنوان
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Diethylenetriamine-functionalized single-walled carbon nanotubes (SWCNTs) to immobilization palladium as a novel recyclable heterogeneous nanocatalyst for the Suzuki–Miyaura coupling reaction in aqueous media
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Introduction Studies on the isolation, characterization and catalytic activities of functionalized carbon nanotubes (CNTs) have received particular attention during the last decade owing to their specific catalytic applications compared to homogeneous complexes. Metal nanoparticles as well as various transition metal complexes such as polymers and porphyrins were used for the functionalization of carbon nanotubes [1–5]. Schiff bases, which are an important class of ligands with extensive applications in different fields [6], also showed excellent catalytic activity when grafted on CNTs [7–10]. Wildgoose et al. reviewed the recent developments in this area by exploring the various techniques allowing one to functionalize the carbon nanotubes with metals and other nanoparticles, and the diverse applications of the resulting materials [11]. Howev- er, the applications of CNTs have been impeded by their poor solubility in solvents and polymers, which originated from strong van der Waals at
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چکیده
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Pd supported on diethylenetriamine (DETA) modified single-walled carbon nanotubes (SWCNT-DETA/Pd) hybrid materials were fabricated for the first time. The prepared heterogeneous catalyst was characterized by XRD, FTIR, SEM, TGA, and TEM. The catalytic activity of the prepared catalyst was investigated by employing the Suzuki–Miyaura coupling reaction as a model reaction. A series of biphenyl compounds were synthesized through the Suzuki–Miyaura reaction using SWCNT-DETA/Pd2+ as a catalyst. The yields of the products were in the range from 80% to 98%. The catalyst can be readily recovered and reused at least for seven consecutive cycles without significant loss of its catalytic activity.
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پژوهشگران
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رامین قربانی واقعی (نفر اول)، صبا همتی (نفر دوم)، مجید هاشمی (نفر سوم)، حجت ویسی (نفر چهارم)
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