Investigation of pore development in raney catalysts in the interaction of nickel-aluminium alloys with alkaline
| Autor: | S.D. Mikhailenko, B.F. Petrov, A. B. Fasman, G. N. Baeva |
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| Rok vydání: | 1987 |
| Předmět: |
inorganic chemicals
Capillary condensation Inorganic chemistry Alloy technology industry and agriculture General Engineering chemistry.chemical_element engineering.material equipment and supplies complex mixtures Catalysis Nickel Particle aggregation Adsorption chemistry Aluminium engineering Leaching (metallurgy) |
| Zdroj: | Reactivity of Solids. 2:373-380 |
| ISSN: | 0168-7336 |
| Popis: | The pore development in nickel- and aluminium-based alloys during their interaction with alkaline was studied by the methods of low-temperature adsorption and capillary condensation of argon. The data obtained were explained by a mechanism in which the pore spacing is controlled by the segregation of nickel and aluminium within the alloy at the leach reaction front. This mechanism is only valid for the alloys without oxidizable additives and only up to a certain degree of leaching, after which the process of nickel particle aggregation begins to prevail. The development of pore space then occurs via diffusion in microvolumes. |
| Databáze: | OpenAIRE |
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