Hydrogen storage capacity of highly porous carbons synthesized from biomass-derived aerogels
Hydrogen storage capacity of highly porous carbons synthesized from biomass-derived aerogels
- 한국탄소학회
- Carbon Letters
- 제16권 제2호
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2015.04127 - 131 (5 pages)
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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 N2/77 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°C.
1. Introduction 2. Experimental 3. Results and Discussion 4. Conclusions Acknowledgments References
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