Non-noble metal doped perovskite as a promising catalyst for ammonia borane dehydrogenation
| Autor: | Kohsuke Mori, David Salinas-Torres, Miriam Navlani-García, Hiromi Yamashita, Yasutaka Kuwahara |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Strontium
Materials science Ammonia borane Doping Inorganic chemistry chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound chemistry Lanthanum Dehydrogenation 0210 nano-technology Cobalt Perovskite (structure) |
| Zdroj: | Catalysis Today. 351:6-11 |
| ISSN: | 0920-5861 |
| Popis: | Lanthanum Strontium Cobalt (LSC) perovskite-based catalysts were prepared and evaluated in the ammonia borane dehydrogenation reaction. Doping with additional non-noble metals, such as Ni or Cu greatly enhanced the catalytic performance, especially in the case of Cu. In order to evaluate the effect of the Cu loading, catalysts with various Cu contents ranging from 0.82 to 5.42 wt.% were synthesized. It was found that the Cu-doped sample with a nominal formula of La0.7Sr0.3Co0.90Cu0.10O3 containing 2.72 wt.% of Cu displayed the highest catalytic activity among investigated, which outperformed the counterpart Cu-supported catalyst (Cu/La0.7Sr0.3CoO3). La0.7Sr0.3Co0.90Cu0.10O3 showed good durability during five consecutive reaction runs, confirming the suitability of perovskite-type catalysts in stabilizing the catalytic active phase. The present catalytic system provides a cost-effective alternative to the noble-metal-based catalysts commonly used to catalyze the ammonia borane dehydrogenation reaction. |
| Databáze: | OpenAIRE |
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