Preprint Article Version 1 This version is not peer-reviewed

The Effect of Functional Group Polarity in Palladium Immobilized Multiwalled Carbon Nanotube Catalysis: Application in Carbon-Carbon Coupling Reaction

Version 1 : Received: 16 July 2018 / Approved: 16 July 2018 / Online: 16 July 2018 (13:56:50 CEST)

A peer-reviewed article of this Preprint also exists.

Chandra, B.P.; Wu, Z.; Ntim, S.A.; Rao, G.N.; Mitra, S. The Effect of Functional Group Polarity in Palladium Immobilized Multiwalled Carbon Nanotube Catalysis: Application in Carbon–Carbon Coupling Reaction. Appl. Sci. 2018, 8, 1511. Chandra, B.P.; Wu, Z.; Ntim, S.A.; Rao, G.N.; Mitra, S. The Effect of Functional Group Polarity in Palladium Immobilized Multiwalled Carbon Nanotube Catalysis: Application in Carbon–Carbon Coupling Reaction. Appl. Sci. 2018, 8, 1511.

Journal reference: Appl. Sci. 2018, 8, 1511
DOI: 10.3390/app8091511

Abstract

Carbon nanotubes (CNTs) are effective supports for nano metals and together they represent hybrids that combine unique properties of both. A microwave induced reaction was used to deposit nano palladium on carboxylated and octadecylamine functionalized multiwall CNTs, which were used to carry out C-C coupling reactions in DMF and toluene. These hybrids showed excellent catalytic activity with yield as high as 99.8% while its enhancement with respect to commercially available Pd/C catalyst reached as high as 109%, and the reactions times were significantly lower. Polarity of the functionalized form was found to be a significant factor with the polar carboxylated CNT showing better activity in DMF while the relatively nonpolar octadecyl amine was better in toluene. The results suggest the possibility of tailor making functionalized CNT when used as catalyst supports

Subject Areas

Pd-CNT nanohybrids, functionalizated CNTs, polarity, Semi-homogeneous catalysis, Heck reaction

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