Hydrogenation of citral on Ir/SiO2 catalysts. Effect of the addition of Nb2O5 on surface and catalytic properties期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Hydrogenation of citral on Ir/SiO₂ catalysts. Effect of the addition of Nb₂O₅ on surface and catalytic properties

Authors:	Gloria Borda Hugo Rojas Julie Murcia J L G Fierro Patricio Reyes and Marcelo Oportus

Institution:	(1) Grupo de Catálisis (GC-UPTC), Facultad de Ciencias Básicas, Universidad Pedagógica y Tecnológica de Colombia UPTC, Tunja, Colombia;(2) Instituto de Catálisis y Petroleoquímica (CSIC), Madrid, Espa?a;(3) Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile

Abstract:	Hydrogenation of citral over Ir supported on SiO₂, Nb₂O₅ and Ir/Nb₂O₅-SiO₂ catalysts reduced at 473 K (LT) and 773 K (HT) was studied. High selectivity to unsaturated alcohol was found, the main reaction products being geraniol and nerol. The LT catalysts show higher conversion levels, the one with a higher Nb content displays highest conversion.

Keywords:	Ir/-Nb₂O₅-SiO₂ citral selective hydrogenation
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