Glucose-Derived Porous Carbon-Coated Silicon Nanowires as Efficient Electrodes for Aqueous Micro-Supercapacitors

Glucose-Derived Porous Carbon-Coated Silicon Nanowires as Efficient Electrodes for Aqueous Micro-Supercapacitors

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 sh...

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Veröffentlicht in:ACS applied materials & interfaces 2016-02, Vol.8 (7), p.4298-4302
Hauptverfasser: Devarapalli, Rami Reddy, Szunerits, Sabine, Coffinier, Yannick, Shelke, Manjusha V, Boukherroub, Rabah
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container_issue 7
container_start_page 4298
container_title ACS applied materials & interfaces
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creator Devarapalli, Rami Reddy
Szunerits, Sabine
Coffinier, Yannick
Shelke, Manjusha V
Boukherroub, Rabah
description 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/cm2 with a good stability up to 25000 charging/discharging cycles in 1 M Na2SO4 aqueous solution.
doi_str_mv 10.1021/acsami.5b11240
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title Glucose-Derived Porous Carbon-Coated Silicon Nanowires as Efficient Electrodes for Aqueous Micro-Supercapacitors
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