Immobilized molybdic acid on porous silica-alumina hollow sphere particles for acid-promoted hydrolytic hydrogen evolution from ammonia borane
| Autor: | Kazuki Watanabe, Shinobu Ohki, Haruka Ogawa, Yoshiyuki Kojima, Tetsuo Umegaki, Tadashi Shimizu, Masataka Tansho |
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| Rok vydání: | 2021 |
| Předmět: |
Aqueous solution
Renewable Energy Sustainability and the Environment Chemistry Ammonia borane technology industry and agriculture Energy Engineering and Power Technology 02 engineering and technology equipment and supplies 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Molybdic acid Ammonia chemistry.chemical_compound Hydrolysis Fuel Technology Chemical engineering Aspartic acid 0210 nano-technology Dispersion (chemistry) Hydrogen production |
| Zdroj: | International Journal of Hydrogen Energy. 46:6659-6668 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2020.11.183 |
| Popis: | This work presented influence of preparation conditions on immobilized molybdic acid on porous silica-alumina hollow sphere particles for acid-promoted hydrolytic hydrogen generation from ammonia borane. The main component of the immobilized molybdic acid was heptamolybdic acid with molybdic tetraoxide as the minor component. Their dispersion of the active heptamolybdic acid species depends on the amount of aqueous l -aspartic acid solutions adding during the immobilization of the active species on the hollow sphere particles, and treatment of the hollow sphere particles in aqueous ammonia solution. The immobilized active molybdic acid with high dispersion tended to exhibit high activity for acid-promoted hydrolytic hydrogen generation from ammonia borane. |
| Databáze: | OpenAIRE |
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