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Design and construction of ferrocene based inclined polycatenated Co-MOF for supercapacitor and dye adsorption applications

Abstract

A new cobalt based inclined polycatenated metal-organic framework {[Co4(FcDCA)4(bpy)4(H2O)6].11H2O}n (1), [FcDCA = 1,1′-ferrocene dicarboxylic acid and bpy = 4, 4′-bipyridyl] has been designed and synthesized in a facile manner. 1 can be simplified as 2D + 2D → 3D inclined polycatenation class with Doc1/1 as authenticated by single crystal X-ray studies. Further, 1 was employed as a modifier to a glassy carbon electrode (1-GCE) without using any binder to explore its supercapacitor performance. The detailed electrochemical investigations obtained by 1-GCE, reveal specific capacitance of 446.8 F g−1 at a current density of 1.2 A g−1 with an excellent cycle life of ~93% (after 500 cycles). Moreover, a high rate performance (retains 81% of initial capacitance up to a high current density of 10 A g-1) was also observed for 1-GCE, which endorsed its good stability on electrode surface. The results were found to be superior than {[Co(bpy)1.5(NO3)2]}n (2) highlighting the role of presence of FcDCA in 1. Additionally, the notable adsorption and desorption properties of 1 towards selected Chicago Sky Blue (CSB) and Congo Red (CR) dyes, confirms the candidature of 1 as a potential dye adsorbing agent.

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Publication details

The article was received on 02 May 2017, accepted on 14 Jul 2017 and first published on 14 Jul 2017


Article type: Paper
DOI: 10.1039/C7TA03773B
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    Design and construction of ferrocene based inclined polycatenated Co-MOF for supercapacitor and dye adsorption applications

    R. Rajak, M. Saraf, A. Mohammad and M. M. M. Shaikh, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA03773B

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