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Synthesis of spherical nanoparticles of Cu2L2O5 (L=Ho, Er) from W/O microemulsions |
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| Authors: | Francesca Porta Concetta Bifulco Paola Fermo Claudia L. Bianchi Michaela Fadoni Laura Prati |
| Affiliation: | a Dipartimento di Chimica Inorganica Metallorganica ed Analitica and Centro CNR, Via Venezian 21, 20133 Milan, Italy b Dipartimento di Chimica Fisica ed Elettrochimica, Via Golgi 19, 20133 Milan, Italy |
| Abstract: | Nanoparticles of Cu2L2O5 (L=Ho, Er) (15–25 nm in size) were synthesised by the intermediate use of W/O microemulsions. In this process the aqueous cores of water/cetyltrimethylammonium bromide/n-octane/1-butanol microemulsions were used as microreactors for the precipitation of Cu2Ho2(CO3)4(OH)2 (25–30 nm) and Cu2Er2(CO3)4(OH)2 (10–40 nm) as precursors. These mixed salts were separated and further decomposed to the corresponding mixed oxides at 900°C for 16 h. All solids were characterised by scanning and transmission electron microscopy, IR, XRPD, ICP-OES, TGA, XPS measurements and elemental analyses. |
| Keywords: | Spherical nanoparticles Cu2L205 Microemulsions |
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