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http://dx.doi.org/10.5714/CL.2015.16.2.127

Hydrogen storage capacity of highly porous carbons synthesized from biomass-derived aerogels  

Choi, Yong-Ki (Department of Chemistry, Inha University)
Park, Soo-Jin (Department of Chemistry, Inha University)
Publication Information
Carbon letters / v.16, no.2, 2015 , pp. 127-131 More about this Journal
Abstract
In this work, highly porous carbons were prepared by chemical activation of carbonized biomass-derived aerogels. These aerogels were synthesized from watermelon flesh using a hydrothermal reaction. After carbonization, chemical activation was conducted using potassium hydroxide to enhance the specific surface area and microporosity. The micro-structural properties and morphologies were measured by X-ray diffraction and scanning electron microscopy, respectively. The specific surface area and microporosity were investigated by $N_2$/77 K adsorption-desorption isotherms using the Brunauer-Emmett-Teller method and Barrett-Joyner-Halenda equation, respectively. Hydrogen storage capacity was dependent on the activation temperature. The highest capacity of 2.7 wt% at 77 K and 1 bar was obtained with an activation temperature of $900^{\circ}C$.
Keywords
adsorption; carbon aerogel; hydrogen storage;
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Times Cited By KSCI : 4  (Citation Analysis)
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