Effect of oxidative pre-treatment on hydrogen spillover for a Ni/SiO₂ catalyst

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• 作者：Abdel-Ghani Boudjahem^a ; ^{Boudjahem@yahoo.fr} ; Mohammed M. Bettahar^b ; ^{Mohammed.Bettahar@univ-lorraine.fr}
• 关键词：Nickel catalysts ; Hydrogen storage ; Benzene hydrogenation ; Calcination ; Hydrogen spillover
• 刊名：Journal of Molecular Catalysis A: Chemical
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：426
• 期：part_PA
• 页码：190-197
• 全文大小：798 K
• 卷排序：426

文摘

Ni catalysts prepared by the hydrazine method then calcined at 400 °C were studied. Activity of these catalysts increased with increasing degree of oxidation of nickel. The metal active phase would be composed of an ensemble of Ni0 and NiO species. Calcination treatment favors the reaction occurring on the nickel phase.