Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1271952 | International Journal of Hydrogen Energy | 2011 | 5 Pages |
Abstract
The high pressure H2 sorption isotherms for vanadium pentoxide foam (VOF) were obtained at a liquid nitrogen temperature. The enhancement of hydrogen storage capacity occurred in as-prepared VOF (∼1.0 wt%) in contrast to that in pristine vanadium pentoxide (∼0.2 wt%). The maximum capacity of hydrogen storage (∼2.0 wt%) was achieved by thermal annealing at Ta = 623 K. The enhancement of hydrogen storage in VOF is attributed to the morphological modulation by thermal annealing.
► We synthesized V2O5 foam. ► Enhancement of H2 uptake of V2O5 occurred compared with that of pristine V2O5 powder. ► Additional increase of H2 uptake of V2O5 foam was observed using thermal annealing. ► It is attributed to the morphological modulation of V2O5 foam.
Keywords
Related Topics
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Chemistry
Electrochemistry
Authors
Byung Hoon Kim, Yong Ju Yun, Won G. Hong, Chang Hee Kim, Sang Moon Lee, Han Young Yu, Hae Jin Kim,