文献类型：期刊文献

英文题名：Hydrogenation of fatty acids to fatty alcohols over Ni3Fe nanoparticles anchored on TiO2 crystal catalyst: Metal support interaction and mechanism investigation

作者：Long, Feng[1,3] Wu, Shiyu[1] Chen, Yuwei[1,2] Cao, Xincheng[1] Zhao, Jiaping[1] Liu, Peng[1] Jiang, Jianchun[1] Zhang, Xiaolei[3] Xu, Junming[1]

第一作者：Long, Feng

通信作者：Xu, JM[1];Zhang, XL[2]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Key Lab Chem Engn Forest Prod,Natl Forestry & Gras, Nanjing 210042, Jiangsu, Peoples R China;[2]Yancheng Inst Technol, Yancheng 224051, Peoples R China;[3]Univ Strathclyde, Dept Chem & Proc Engn, Glasgow G1 1XJ, Scotland

年份：2023

卷号：464

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20231513863691);Scopus(收录号：2-s2.0-85151878245);WOS:【SCI-EXPANDED(收录号:WOS:000976097400001)】；

基金：Our works were supported by the ?Chinese Academy of Forestry Special Fund Project for Basic Scientific Research Operation Expenses ? (CAFYBB2022ZC003) .

语种：英文

外文关键词：TiO2 crystals; Metal-support interaction; Fatty acids hydrogenation; Fatty alcohols; Density Functional Theory; Oxygen vacancy

摘要：Catalytic transformation of fatty acids into fatty alcohols is the essential step to produce renewable energy and high-valuable chemicals from waste fatty acids. In this research, a series of Ni3Fe catalysts were synthesized to improve this transformation, specifically that the Ni3Fe anchored on TiO2 surface has performed excellent ac-tivity with a high alcohol yield reaching 91.2%. The structure-reactivity relationship between the Ni3Fe nano -particles on different crystal types of TiO2 (anatase: A-TiO2, rutile: R-TiO2) was investigated. It was found that the as-prepared Ni3Fe/R-TiO2 catalyst showed better catalytic performance than that of Ni3Fe/A-TiO2. Both experimental and density functional theory (DFT) computational results indicated that the interactions between Ni3Fe nanoparticles and R-TiO2 support have highly promoted the formation of oxygen vacancy (Ov), which plays an essential role in C-O and H-H cleavage, thus promoting the hydrogenation towards fatty alcohols. Furthermore, the catalyst reusability tests showed that Ni3Fe/TiO2 catalyst exhibited good stability over four times recycled and excellent suitability for industrial crude fatty acid conversion.