文献类型：期刊文献

英文题名：Nitrogen-rich carbon-supported ultrafine MoC nanoparticles for the hydrotreatment of oleic acid into diesel-like hydrocarbons

作者：Wang, Fei[1,2,3,4,5] Zhang, Wenjuan[6] Jiang, Jianchun[1,2,3,4,5] Xu, Junming[1,2,3,4,5] Zhai, Qiaolong[1,2,3,4] Wei, Linshan[1,2,3,4] Long, Feng[1,2,3,4] Liu, Chao[1,2,3,4] Liu, Peng[1,2,3,4] Tan, Weihong[1,2,3,4] He, Daheng[7]

第一作者：Wang, Fei

通信作者：Jiang, JC[1]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Nanjing 210042, Jiangsu, Peoples R China;[2]Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Natl Engn Lab Biomass Chem Utilizat, Nanjing 210042, Jiangsu, Peoples R China;[4]SFA, Key & Open Lab Forest Chem Engn, Nanjing 210042, Jiangsu, Peoples R China;[5]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Re, Nanjing 210037, Jiangsu, Peoples R China;[6]Taiyuan Univ Technol, Res Inst Surface Engn, Lab Adv Mat & Energy Electrochem, Taiyuan 030024, Shanxi, Peoples R China;[7]Univ Kentucky, Markey Canc Ctr, Biostat & Bioinformat Shared Resource Facil, Lexington, KY 40536 USA

年份：2020

卷号：382

外文期刊名：CHEMICAL ENGINEERING JOURNAL

收录：;EI(收录号：20194007496093);Scopus(收录号：2-s2.0-85072834363);WOS:【SCI-EXPANDED(收录号:WOS:000503381200185)】；

基金：This work is supported financially by the Special Funds for the Basic Scientific Research of Central Public Welfare Research Institutes, CAF (CAFYBB2018QC001) and Chinese Scholarship Council (CSC). The authors would like to thank HongxiaoWang (ICIFP) for his help with the XRD, SEM-EDS and TEM analyses, Haitao Huang (ICIFP) for his help with the N2 sorption tests, and Juanzhang Shen (ICIFP) for her help with the ICP and elemental analyses. The authors would also like to thank Xiangxiang Gong (Testing Center of Yangzhou University) for his help with the XPS analysis.

语种：英文

外文关键词：Molybdenum carbide; Hydrodeoxygenation; Density functional theory; Renewable fuel; Lipid; Bioenergy

摘要：The hydrotreatment of lipids is regarded as a renewable and promising approach to produce green diesel to confront environmental issues. The molybdenum carbide catalyst displays noble metal-like activity for lipid hydrotreatment; however, the active sites on the catalyst typically have a large particle size and are unevenly dispersed, thereby severely limiting its catalytic performance. Herein, ultrafine MoC nanoparticles supported on nitrogen-rich carbon (MoC/CN) were prepared, and their activity for the hydrotreatment of oleic acid was compared with that of Mo2C supported on mesoporous carbon (Mo2C/MC). In the hydrotreatment test, the MoC/CN catalyst exhibited remarkable activity with 94.3% conversion and 90.3% selectivity at 310 degrees C; these values were much higher than those of the Mo2C/MC catalyst (84.8% and 70.1%, respectively), even at 350 degrees C. The excellent performance of MoC/CN is ascribed to the sufficient amounts of pyridinic N and pyrrolic N in nitrogen-rich carbon, which provide anchoring sites for the molybdenum precursor, leading to the fine particle sizes of the active sites and a uniform dispersion. The density functional theory (DFT) calculations show that MoC/CN can better facilitate the dissociative adsorption of hydrogen than Mo2C/MC, which explains the high activity of the Mo2C/MC catalyst in the hydrotreatment reaction. The carburization temperature and Mo loading content have a considerable effect on the MoC formation and surface area of the MoC/CN catalyst and thus greatly influence the catalytic activity. Moreover, the hydrotreatment conditions, including the reaction temperature and hydrogen pressure, were also investigated.