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Controlling Hydrodeoxygenation of Stearic Acid to n‐Heptadecane and n‐Octadecane by Adjusting the Chemical Properties of Ni/SiO2–ZrO2 Catalyst

A series of SiO2–ZrO2 mixed oxides with varying SiO2 concentrations were hydrothermally synthesized and used as support for Ni in the hydrodeoxygenation of stearic acid. ZrO2 provides a relatively low surface area and only Lewis acid sites, and Ni supported on ZrO2 produces n‐heptadecane from stearic acid through hydrogenation and decarbonylation. The SiO2–ZrO2 mixed oxides have a higher specific surface area than ZrO2 as well as an unprecedented spherical and nanolayered morphology. Brønsted acid sites were created by the incorporation of SiO2 into ZrO2, 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.