Liquid-phase hydrogenation of unsaturated aldehydes: enhancing selectivity of multiwalled carbon nanotube-supported catalysts by thermal activation
Platinum and iridium organometallic precursors are used to prepare nanosized, thermally stable multiwalled carbon nanotube-supported catalysts. The materials are characterized by N-2 adsorption at 77 K, temperature-programmed desorption coupled with mass spectrometry, H-2 chemisorption, transmission...
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| Outros Autores: | , , , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2010
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| Assuntos: | |
| Texto completo: | https://hdl.handle.net/10216/102650 |
| País: | Portugal |
| Oai: | oai:repositorio-aberto.up.pt:10216/102650 |
| Resumo: | Platinum and iridium organometallic precursors are used to prepare nanosized, thermally stable multiwalled carbon nanotube-supported catalysts. The materials are characterized by N-2 adsorption at 77 K, temperature-programmed desorption coupled with mass spectrometry, H-2 chemisorption, transmission electron microscopy and thermogravimetric analysis; they are tested in the selective hydrogenation of cinnamaldehyde to cinnamyl alcohol under mild conditions (363 K and 1 MPa). A thermal activation at 973 K is found to have a very positive |
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