Nanoporous Carbon Derived from Rice Husk for Electrochemical Capacitor Application

Wei Xing; Xiao Li; Jin Zhou; Shu Ping Zhuo

doi:10.4028/www.scientific.net/AMR.239-242.2101

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Nanoporous Carbon Derived from Rice Husk for...

Nanoporous Carbon Derived from Rice Husk for Electrochemical Capacitor Application

Abstract:

Nanoporous carbons were prepared from rice husk (RH) according to a three-step procedure that includes pre-carbonization, silica removal and chemical activation. The surface area and pore structure of the nanoporous carbons are characterized intensively using N₂ adsorption technique. The as-prepared carbons have specific surface area of up to 3283 m²/g, and total pore volume of up to 1.8 cm³/g. The effect of activating agent dosage on the pore structure of carbons was investigated and elucidated clearly. As evidenced by electrochemical measurements, the as-prepared carbons have good capacitive performances and their specific capacitances are much higher than ordered mesoporous carbon, thus highlighting the success of preparing high performance electrode material for EDLC from a biomass waste, rice husk.

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Periodical:

Advanced Materials Research (Volumes 239-242)

Pages:

2101-2106

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.2101

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Online since:

May 2011

Authors:

Wei Xing, Xiao Li, Jin Zhou, Shu Ping Zhuo

Keywords:

Electrochemical Double-Layer Capacitor, Energy Storage, Porous Carbon, Specific Capacitance

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