title: Glucose-Derived Porous Carbon-Coated Silicon Nanowires as Efficient Electrodes for Aqueous Micro-Supercapacitors.
abstract: In this study, we report on carbon coating of vertically aligned silicon nanowire (SiNWs) arrays via a simple hydrothermal process using glucose as carbon precursor. Using this process, a thin carbon layer is uniformly deposited on the SiNWs. Under optimized conditions, the coated SiNWs electrode showed better electrochemical energy storage capacity as well as exceptional stability in aqueous system as compared to uncoated SiNWs. The as-measured capacitance reached 25.64 mF/cm(2) with a good stability up to 25000 charging/discharging cycles in 1 M Na2SO4 aqueous solution.
authors: Physical and Materials Chemistry Division, National Chemical Laboratory, CSIR-NCL , Pune 411 008, India.|Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113, India.|Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, Université Lille1 , Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
authors: Rami Reddy
authors: RR
authors: Devarapalli
authors: Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, Université Lille1 , Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
authors: Sabine
authors: S
authors: Szunerits
authors: Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, Université Lille1 , Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
authors: Yannick
authors: Y
authors: Coffinier
authors: Physical and Materials Chemistry Division, National Chemical Laboratory, CSIR-NCL , Pune 411 008, India.|Academy of Scientific and Innovative Research (AcSIR) , Chennai 600113, India.
authors: Manjusha V
authors: MV
authors: Shelke
authors: Institut d'Electronique, de Microélectronique et de Nanotechnologie (IEMN), UMR CNRS 8520, Université Lille1 , Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
authors: Rabah
authors: R
authors: Boukherroub
keywords: carbon coating; glucose precursor; hydrothermal; microsupercapacitors; silicon nanowires