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Nitrogen-doped graphene-like carbon nanosheets from commercial glue: morphology, phase evolution and Li-ion battery performance

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Abstract

We report a two-step process to synthesize nitrogen-doped graphene-like carbon nanosheets (N-CNS), using commercially available ethyl cyanoacrylate based super glue as a carbon precursor. In this process, super glue is polymerized in aqueous NaCl solution, followed by carbonization at 1000 °C. Scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM) studies show that the resultant material consists of micron-sized carbon nanosheets with a wrinkled morphology. HRTEM, X-ray diffraction (XRD), XPS and Raman spectroscopic studies confirm the formation of nanocrystalline and graphitic, nitrogen-doped carbon nanosheets. A detailed FTIR analysis of the degradation products of the polymeric precursor (polyethyl cyanoacrylate) at various heat treatment temperatures under an inert atmosphere reveals that the polymer undergoes a cyclization process similar to polyacrylonitrile (PAN) during carbonization to yield the N-CNS. The N-CNS used as an anode for a lithium-ion battery shows stable reversible capacities of 480 mA h g−1 for 100 cycles, which indicates that N-CNS are promising materials for lithium-ion battery applications. In a broader perspective, a unique chemical transformation of polyethyl cyanoacrylate to graphitic carbon may be useful to design new nanostructured carbons for a plethora of applications.

Graphical abstract: Nitrogen-doped graphene-like carbon nanosheets from commercial glue: morphology, phase evolution and Li-ion battery performance

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Publication details

The article was received on 04 May 2018, accepted on 05 Jul 2018 and first published on 10 Jul 2018


Article type: Paper
DOI: 10.1039/C8DT01787E
Citation: Dalton Trans., 2018, Advance Article
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    Nitrogen-doped graphene-like carbon nanosheets from commercial glue: morphology, phase evolution and Li-ion battery performance

    D. Damodar, S. K. Kumar, S. K. Martha and A. S. Deshpande, Dalton Trans., 2018, Advance Article , DOI: 10.1039/C8DT01787E

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