Thermolytic dehydrogenation of cotton-structured SiO2-Ammonia borane nanocomposite
| Autor: | Joon-Hyung Jin, Seunghun Shin, Jihoon Jung |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Hydrogen General Chemical Engineering Thermal decomposition Ammonia borane Proton exchange membrane fuel cell chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Chemical engineering chemistry Hydrogen fuel Dehydrogenation 0210 nano-technology Hydrogen production |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 88:278-284 |
| ISSN: | 1226-086X |
| DOI: | 10.1016/j.jiec.2020.04.025 |
| Popis: | Thermal dehydrogenation of ammonia borane (AB) is one of the simplest methods to generate pure hydrogen for hydrogen power-driven proton exchange membrane fuel cells. For AB thermolysis, it is imperative to develop a highly effective catalyst to initiate the dehydrogenation reaction at a low temperature and eventually achieve enhanced hydrogen production. Here, we introduce a specifically designed AB-SiO2 nanocomposite, which is prepared by simple mixing and pressing processes. Hydrogen evolution during thermolysis of the cotton-structured AB-SiO2 composite is initiated at around 80 °C, and the maximum H2 yield is determined to be 11.2 wt% (2.32 mole equivalents of H2). The yield is found to depend on the size and size distribution of the catalytic SiO2 particles in the hydrogen fuel composite. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect