Controlling Hydrodeoxygenation of Stearic Acid to n-Heptadecane and n-Octadecane by Adjusting the Chemical Properties of Ni/SiOb>2 b>-ZrOb>2 b> Catalyst
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- 作者：Sebastian Foraita ; Dr. Yue Liu ; Prof. Dr. Gary L. Haller ; Dr. Eszter Bará ; th ; Dr. Chen Zhao and Prof. Dr. Johannes A. Lercher
- 刊名：ChemCatChem
- 出版年：2017
- 出版时间：January 9, 2017
- 年：2017
- 卷：9
- 期：1
- 页码：195-203
- 全文大小：1658K
- ISSN：1867-3899
文摘
A series of SiOb>2 b>–ZrOb>2 b> mixed oxides with varying SiOb>2 b> concentrations were hydrothermally synthesized and used as support for Ni in the hydrodeoxygenation of stearic acid. ZrOb>2 b> provides a relatively low surface area and only Lewis acid sites, and Ni supported on ZrOb>2 b> produces n-heptadecane from stearic acid through hydrogenation and decarbonylation. The SiOb>2 b>–ZrOb>2 b> mixed oxides have a higher specific surface area than ZrOb>2 b> as well as an unprecedented spherical and nanolayered morphology. Brønsted acid sites were created by the incorporation of SiOb>2 b> into ZrOb>2 b>, promoting the hydrodeoxygenation activity of Ni and specifically opening a new reaction route to n-octadecane through the dehydration of 1-octadecanol intermediate into 1-octadecene with subsequent hydrogenation.