Journal
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
Volume 107, Issue -, Pages 224-232Publisher
ELSEVIER
DOI: 10.1016/j.jaap.2014.03.005
Keywords
Pyrolysis; Templated carbon; Furfuryl alcohol; Silica gel; Hydrogen storage
Funding
- FIST, DST, India [SR/FST/ETII-028/2010]
- CIF, IIT Guwahati
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In this study silica gel templated carbons were synthesized by pyrolysis using furfuryl alcohol as carbon precursor. Effects of temperatures (650, 750 and 850 degrees C) and dwelling times (1, 2, 3 and 4h) on physical properties of templated carbons were investigated. The synthesized templated carbons were studied for hydrogen uptake at atmospheric pressure and subzero temperatures (-50 and -100 degrees C). The surface area and pore structure of the templated carbons varied significantly with synthesis parameters. Templated carbon with highest surface area (1975 m(2)/g) and pore volume (3.07 ml/g) was obtained at pyrolysis temperature of 650 degrees C and 3 h dwelling time. For all synthesized carbons, 90-95% of the pores were in the range of 2-20 nm and 38-67% of the pores were in the range of 2-6 nm. Highest hydrogen uptake of 0.16 wt.% was observed at adsorption temperature of -100 degrees C for templated carbon synthesized at 650 degrees C and dwelling time of 3 h. (C) 2014 Elsevier B.V. All rights reserved.
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