44 Papers
74 Citations
N. Sivakumar is an academic researcher from Amrita Institute of Medical Sciences and Research Centre. The author has contributed to research in topics: Medicine & Electrode. The author has an hindex of 11, co-authored 19 publications.
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Papers
Ultra fine MnO2 nanowire based high performance thin film rechargeable electrodes: Effect of surface morphology, electrolytes and concentrations
R. Ranjusha,A. Sreekumaran Nair,Seeram Ramakrishna,P. Anjali,K. Sujith,K.R.V. Subramanian,N. Sivakumar,T.N. Kim,Shantikumar V. Nair,Avinash Balakrishnan +9 more
TL;DR: In this paper, the authors demonstrate a novel approach by which titanium foils coated with MnO2 nanowires can be processed into a high surface area electrode for rechargeable energy storage applications.
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An effective route to produce few-layer graphene using combinatorial ball milling and strong aqueous exfoliants
R. Aparna,N. Sivakumar,Avinash Balakrishnan,A. Sreekumar Nair,Shantikumar V. Nair,K.R.V. Subramanian +5 more
TL;DR: In this paper, a simple, cost effective, and scalable process for production of few-layer graphene is reported by combining ball milling with exfoliants, which is derived from low-cost graphite, which was subjected to high-energy ball-milling in an aqueous medium containing a strong exfoliant (1-pyrenecarboxylic acid) and a common solvent methanol.
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Fabrication and performance evaluation of button cell supercapacitors based on MnO2 nanowire/carbon nanobead electrodes
R. Ranjusha,Seeram Ramakrishna,A. Sreekumaran Nair,P. Anjali,S. Vineeth,T.S. Sonia,N. Sivakumar,K.R.V. Subramanian,Shantikumar V. Nair,Avinash Balakrishnan +9 more
TL;DR: In this article, high aspect ratio MnO2 nanowires carbonized with camphoric carbon composed of nanobeads were utilized for supercapacitor/battery applications, which exhibited specific mass capacitance values as high as 1200 ± 18 F g−1.
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Fabrication of highly porous conducting PANI-C composite fiber mats via electrospinning
K. Sujith,A.M. Asha,P. Anjali,N. Sivakumar,K.R.V. Subramanian,Shantikumar V. Nair,Avinash Balakrishnan +6 more
TL;DR: In this article, high porosity polyaniline-carbon black composite nanofiber mat with good conductivity was fabricated via electrospinning and the fiber mat was electrospun using polyvinyl alcohol as carrier solution.
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Fabricating fiber, rice and leaf-shaped TiO2 by tuning the chemistry between TiO2 and the polymer during electrospinning
G. S. Anjusree,Arun Bhupathi,Avinash Balakrishnan,Sajini Vadukumpully,K. R. V. Subramanian,N. Sivakumar,Seeram Ramakrishna,Shantikumar V. Nair,A. Sreekumaran Nair +8 more
TL;DR: In this article, the authors explored the chemistry between the TiO2 and the above mentioned polymers which results in the structural anisotropy of the electrospun metal oxide nanofibers.
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