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Enhancement of H2 uptake due to morphological modulation in vanadium pentoxide foam |
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| Authors: | Byung Hoon Kim Yong Ju Yun Won G Hong Chang Hee KimSang Moon Lee Han Young Yu Hae Jin Kim |
| Affiliation: | a Electronics and Telecommunications Research Institute (ETRI), Daejeon 305 700, Republic of Korea b Korea Basic Science Institute, Daejeon 350 333, Republic of Korea c Interdisciplinary School of Green Energy, KIER-UNIST Advanced Center for Energy, UNIST, Ulsan, 689-798, Republic of Korea |
| 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. |
| Keywords: | Hydrogen storage Vanadium pentoxide foam Morphological modulation |
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