Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7720944 | International Journal of Hydrogen Energy | 2014 | 7 Pages |
Abstract
A novel method for synthesis of carbon-supported cobalt boride catalyst was developed for hydrogen generation from catalytic hydrolysis of NaBH4 solution. The activated carbon and carbon black supported catalysts prepared by “reduction-precipitation” method were found to be much more active than those prepared by conventional “impregnation-reduction” method inspite of the same Co content. A maximum hydrogen generation was achieved using carbon black supported Co-B, which lowers the activation energy to 56.7 kJ molâ1. The effects of NaOH concentration (1-15 wt.%), NaBH4 concentration (5-20 wt.%) and reaction temperature (25-40 °C) on the performance of the most active catalyst (Co-B/CB) were investigated in detail. The results indicated that this catalyst can be used in a hydrogen generator for mobile applications such as PEMFC systems due to its high catalytic activity and simple preparation method.
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Electrochemistry
Authors
Ferhat Baydaroglu, Ercan Ãzdemir, Aydin Hasimoglu,