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Journal Article
Enhancement of hydrogen storage capacity in polyaniline-vanadium pentoxide nanocomposites
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- Authors
- Byung Hoon Kim, Won G. Hong, Sang Moon Lee, Yong Ju Yun, Han Young Yu, Soon-Young Oh, Chang Hee Kim, Yark Yeon Kim, Hae Jin Kim
- Issue Date
- 2009-12
- Citation
- International Journal of Hydrogen Energy, v.35, no.3, pp.1300-1304
- ISSN
- 0360-3199
- Publisher
- Elsevier
- Language
- English
- Type
- Journal Article
- Abstract
- The high-pressure H2 sorption isotherms of polyaniline-vanadium pentoxide nanocomposites (PANI-VONC) have been performed at liquid nitrogen temperature. A large increment of hydrogen storage capacity occurs in PANI-VONC (~1.8혻wt%) in contrast to that in pristine vanadium pentoxide (~0.2혻wt%) and in non-treated polyaniline (~0.2혻wt%). It is considered that the reason for the enhancement of hydrogen storage in PANI-VONC is the intercalation of polyaniline (PANI) into the vanadium pentoxide layers. The intercalation of PANI decreases the interlayer distance from 1.1혻nm between vanadium pentoxide layers to 0.72혻nm between vanadium pentoxide layer and polyaniline layer. © 2009 Professor T. Nejat Veziroglu.
- KSP Keywords
- Hydrogen storage capacity, high pressure, interlayer distance, liquid nitrogen temperature, sorption isotherms, vanadium pentoxide