Novel Approaches to Metallization of Cellulose by Reduction of Cellulose-Incorporated Copper and Nickel Ions
| Autor: | Kari Pirkkalainen, Ulla Vainio, Ritva Serimaa, N. E. Kotelnikova |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Polymers and Plastics Metal ions in aqueous solution chemistry.chemical_element Nanoparticle Mineralogy 02 engineering and technology 010402 general chemistry 01 natural sciences Metal chemistry.chemical_compound Materials Chemistry Cellulose Nanocomposite Organic Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Copper 0104 chemical sciences Microcrystalline cellulose Nickel chemistry Chemical engineering visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Macromolecular Symposia. 254:74-79 |
| ISSN: | 1521-3900 1022-1360 |
| DOI: | 10.1002/masy.200750811 |
| Popis: | Copper and nickel nanoparticles were synthesized in the insoluble microcrystalline cellulose support by reduction of metal ions with several reducers in various media resulting in cellulose-metal nanocomposites. Wide-angle X-ray scattering results showed that supramolecular structure of cellulose did not change. Crystalline Cu 2 O and Cu← 1 0 nanoparticles were prepared with reducers NaBH 4 and N 2 H 4 .H 2 SO 4 , CuO nanoparticles - with cellulose itself as a reducer. Crystalline Ni 0 nanoparticles were synthesized with N 2 H 4 .2HCl and NaBH 4 ; Ni 0 nanoparticles in amorphous form were prepared with KH 2 PO 2 . H 2 O, SEM revealed large agglomerates of metal particles on the fibre surface. ASAXS and TEM have shown the nanoparticles to be in the range 5-55 nm. |
| Databáze: | OpenAIRE |
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