Processing of Iridium Doped Materials and Experimental Investigation of Their Hydrogen Adsorption Capacity
| Autor: | Radu Mirea, Gimi Rimbu, Mihai Iordoc, Gabriela Oprina |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Process equipment Materials Science (miscellaneous) Process Chemistry and Technology Doping General Engineering chemistry.chemical_element General Chemistry General Medicine General Biochemistry Genetics and Molecular Biology Hydrogen adsorption chemistry Chemical engineering Petrochemistry Materials Chemistry Iridium General Pharmacology Toxicology and Pharmaceutics |
| Zdroj: | Revista de Chimie. 69:1468-1472 |
| ISSN: | 2668-8212 0034-7752 |
| Popis: | The paper aims to present the investigation of H2 adsorption capacity in metal doped nanostructured materials, by using two methods. Carbonic materials are considered to be one of the most promising materials to be used for hydrogen adsorption and storage. They have different applications and one of the most important is considered to be fuel cells technology. By using metals for doping these materials, the adsorption capacity increases, thus approaching the target of 6.5% weight ratio of H2 adsorbed in a substrate. Within these investigations multi-wall nanotubes and poly-aniline have been used as substrates. The poly-aniline has been prepared and doped in laboratory while the nanotubes used in experiments have been purchased from the market and afterwards doped in laboratory. The doping procedure consists of a physical-chemical method which involves salts of the metal for doping and the use of ultrasounds in order to activate the substrate for doping. The adsorption capacity of the carbonic materials has been determined by using spill over phenomena in a PCT Pro-User apparatus, provided by SETARAM and also by cyclic voltametry, by using VoltaLab-40 apparatus. In order to investigate the adsorption capacity of the nanostructured carbonic materials, the experiments have been carried out at different pressures. Both substrates have been characterized in order to determine their porosity, BET surface and structure. The collected data have been processed by using the PCT Pro-User apparatus�s software. The results have been compared with the available data from literature and a good consistency was found. |
| Databáze: | OpenAIRE |
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