NHC-Pd complex heterogenized on graphene oxide for cross-coupling reactions and supercapacitor applications |
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Authors: | Vishal Kandathil Aisha Siddiqa Abhinandan Patra Bhakti Kulkarni Manjunatha Kempasiddaiah BS Sasidhar Shivaputra A Patil Chandra Sekhar Rout Siddappa A Patil |
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Institution: | 1. Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore, 562112 India;2. Organic Chemistry Section, Chemical Sciences & Technology Division, National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, Kerala, -695019 India;3. Pharmaceutical Sciences Department, College of Pharmacy, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road,, North Chicago, IL, 60064 USA |
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Abstract: | N-heterocyclic carbene (NHC)-palladium(II) complex (GO@NHC-Pd) was synthesized on graphene oxide (GO) support via a simple and cost-effective multistep approach. The spectroscopic, microscopic, thermal, and surface analyses of GO@NHC-Pd confirmed the successful formation of the catalyst. The investigation of catalytic activity showed that GO@NHC-Pd was very effective in Suzuki–Miyaura as well as Hiyama cross-coupling. Being heterogeneous in nature, GO@NHC-Pd was recovered after each reaction cycle easily and reused for up to nine and six cycles in Suzuki–Miyaura and Hiyama cross-coupling, respectively, without significant loss of activity. Further exploration of the supercapacitor performance of GO@NHC-Pd catalyst assembled in a two-electrode cell configuration shown a maximum attained capacitance of 105.26 F/g at a current density of 0.1 A/g with good cycling stability of 96.89% over 2,500 cycles. |
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Keywords: | graphene oxide Hiyama cross-coupling N-heterocyclic carbene-palladium(II) supercapacitor Suzuki–Miyaura cross-coupling |
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