Kinetic Study of Hydrogen Generation from the Hydrolysis of Alkaline NaBH4 over Ru/MMT: an Insight on the Effect of Catalyst Amount
| Autor: | Jun Zhang, Xinjie Fan, Wu Yunji, Shuge Peng |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Hydrogen
Chemistry Inorganic chemistry chemistry.chemical_element Activation energy Condensed Matter Physics Electronic Optical and Magnetic Materials Nanoclusters Catalysis chemistry.chemical_compound Hydrolysis Sodium borohydride Montmorillonite Control and Systems Engineering mental disorders Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering Hydrogen production |
| Zdroj: | Integrated Ferroelectrics. 147:159-165 |
| ISSN: | 1607-8489 1058-4587 |
| DOI: | 10.1080/10584587.2013.792624 |
| Popis: | An efficient and cheap catalyst, montmorillonite supported Ru nanoclusters (Ru/MMT) were successfully prepared and explored for the hydrogen generation from alkaline NaBH4 solution. The catalytic behavior and the kinetics of Ru/MMT catalyzed hydrolysis of alkaline NaBH4 was studied detailedly by measuring the volume of generated hydrogen gas varying catalyst concentration and temperature. The relationship between the activation energy (Ea) of NaBH4 hydrolysis reaction and Ru/MMT amount was constructed, and the minimum value was determined to be 49.6 kJ/mol, which was lower than the most reported Ru-based supported catalysts that have been reported in the open literatures. The higher catalytic activity of Ru/MMT was due to the more open frame of montmorillonite than the other inorganic supporters, which decreases the substrate inhibition in catalytic hydrolysis of NaBH4. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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