Química Nova
| Autor: | Souza, Alexilda Oliveira de, Varela, Maria do Carmo Rangel Santos, Alves, Oswaldo Luiz |
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| Jazyk: | portugalština |
| Rok vydání: | 2005 |
| Předmět: | |
| Zdroj: | Repositório Institucional da UFBA Universidade Federal da Bahia (UFBA) instacron:UFBA |
| Popis: | p. 46-49,Jan./Feb. Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-12T12:40:48Z No. of bitstreams: 1 23036.pdf: 225732 bytes, checksum: b2ad1d82e180a9628a5c24336e17412a (MD5) Made available in DSpace on 2011-12-12T12:40:48Z (GMT). No. of bitstreams: 1 23036.pdf: 225732 bytes, checksum: b2ad1d82e180a9628a5c24336e17412a (MD5) Previous issue date: 2005 The a-zirconium (IV) hydrogenphosphate (a-ZrP) has received great attention in the last years due to its properties like ion exchange, intercalation, ionic conductivity and catalytic activity. This work reports a method to produce metallic copper clusters on a-ZrP to be used as catalysts in petrochemical processes. It was found that the solids were non-crystalline regardless of the uptake of copper and the reduction. The specific surface area increased as a consequence of the increase of the interlayer distance to accept the copper ions between the layers. During the reduction, big clusters of copper (0,5-11µ) with different sizes and shapes were produced. São Paulo |
| Databáze: | OpenAIRE |
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