Chitosan Microspheres from Shrimp Waste Supporting Pd Nanoparticles in Ionic Liquids: An Efficient and Eco-Friendly Catalyst for Hydrogenation Reactions
| Autor: | Karina Rodrigues de Fraga, Carla W. Scheeren, Daiane K Fischer |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope Biomedical Engineering chemistry.chemical_element Bioengineering 02 engineering and technology General Chemistry engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Catalysis Chitosan chemistry.chemical_compound chemistry Transmission electron microscopy Hexafluorophosphate Ionic liquid engineering General Materials Science Biopolymer 0210 nano-technology Nuclear chemistry Palladium |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 20:1296-1302 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2020.16964 |
| Popis: | Palladium nanoparticles (Pd NPs) (ca. 4.8 nm) were synthesized from Palladium acetylacetonate [Pd(acac)₂] using ionic liquids 1-n-butyl-3-methylimidazolium hexafluorophosphate [BMI.PF6] or 1-n-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide [BMI.N(Tf)₂] as stabilizing agents. The catalyst named Pd NPs/IL/Chitosan, was characterized and analyzed by the different techniques, such as X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDS), infrared (IR) and Brunauer-Emmett-Teller (BET) method (BET), to evaluate the composition of the material as well as the texture, size, distribution, homogeneity, structure and surface area. The catalyst Pd NPs/IL/Chitosan exhibited high catalytic activity in the hydrogenation reactions, when compared to Pd NPs not supported; this fact is related possibly to the large surface area and the durability and stability provided by the support of the biopolymer in combination with ionic liquids. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|