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Updated: May 23, 2025
Chemical Precipitation Method for the Synthesis of Nb2O5 Modified Bulk Nickel Catalysts with High Specific Surface Area
Published on: February 19, 2018
Nickel-supported cellulose-based porous composite for catalytic hydrogenation of oleic acid
Cuiping Zhu1, Mingmei Jing1, Zhenjie Guo1
1Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
Abstract:
Based on the amino-functionalized corn straw cellulose-based porous material, a structurally stable and high-performance straw-based metal catalyst (PPCS@Ni) was prepared by depositing metal particles on the surface of porous straw (PCS) using an economical and environmentally friendly polymer-assisted metal deposition (PAMD) method. Due to the excellent structural stability of the metal material and the catalytic performance of nickel, PPCS@Ni exhibited outstanding catalytic efficiency, cyclic regeneration ability, and stability in the catalytic hydrogenation of oleic acid. Furthermore, after experimental screening and optimization (8 g oleic acid, 34.73 % Ni, 100 mg PPCS@Ni, 180 °C, 3 MPa H2, 6 h), PPCS@Ni demonstrated a yield and selectivity for stearic acid reaching 100 %. Finally, density functional theory calculations revealed the mechanism of PPCS@Ni in the hydrogenation reaction of oleic acid as well as elucidated the key role of the catalyst surface and selectivity trend of products. With these advantages, it is anticipated that the straw-based metal catalysts developed in this study will provide a new effective pathway for vegetable oil hydrogenation processes.
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