文献类型：期刊文献

英文题名：Efficient low-temperature hydrogenation of fatty acids to fatty alcohols and alkanes on a Ni-Re bimetallic catalyst: The crucial role of NiRe alloys

作者：Cao, Xincheng[1,2,4,5] Zhao, Jiaping[1,2,4,5] Long, Feng[1,2,4,5] Liu, Peng[1,2,4,5] Jiang, Xia[1,2,4,5] Zhang, Xiaolei[3] Xu, Junming[1,2,4,5,6] Jiang, Jianchun[1,2,4,5,6]

第一作者：Cao, Xincheng

通信作者：Xu, JM[1];Jiang, JC[1];Xu, JM[2];Jiang, JC[2];Xu, JM[3];Jiang, JC[3];Xu, JM[4];Jiang, JC[4];Xu, JM[5];Jiang, JC[5]

机构：[1]Chinese Acad Forestry, Inst Chem Ind Forest Prod, SFA, Nanjing 210042, Peoples R China;[2]Key & Open Lab Forest Chem Engn, SFA, Nanjing 210042, Peoples R China;[3]Univ Strathclyde, Dept Chem & Proc Engn, Glasgow, Scotland;[4]Natl Engn Lab Biomass Chem Utilizat, SFA, Nanjing 210042, Peoples R China;[5]Key Lab Biomass Energy & Mat, SFA, Nanjing 210042, Jiangsu Provinc, Peoples R China;[6]Nanjing Forestry Univ, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing, Peoples R China

年份：2022

卷号：312

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20221812067830);Scopus(收录号：2-s2.0-85129284231);WOS:【SCI-EXPANDED(收录号:WOS:000798992700004)】；

基金：Acknowledgements The authors would like to thank the financial support provided by the National Natural Science Foundation of China (2019YFB1504005 and 2019YFB1504000) .

语种：英文

外文关键词：Selective hydrogenation; Low-temperature conversion; Ni-Re bimetallic catalyst; Fatty alcohols

摘要：Selective hydrogenation of fatty acids is important for production of sustainable fuels and valuable chemicals as well as for the utilization of natural oils and fats. Generally, high reaction temperature (> 200 C) is required due to the weak polarizability and low reactivity of the carbonyl group of fatty acids. Here, we report an efficient catalytic system (Ni-Re/SBA-15 bimetallic catalyst) that realizes the low-temperature conversion of fatty acids to corresponding alcohols (reaction temperature: 150 C) and diesel-range alkanes (170 C) with high yields, surpassing the catalytic performance rendered by most of the catalytic systems reported so far. Detailed investigation into the nature of the catalyst showed that the superior activity originated from the formation of NiRe alloy, which improved the dispersion of metallic Ni, the H-2 activation ability and promoted the fatty acids/alcohols adsorption on the catalyst surface at low temperatures. More importantly, due to its strong electrophilicity, the fatty acids with highly electronegative carbonyl oxygen can be preferentially adsorbed on the catalyst surface than the fatty alcohols, which leads fatty acids to be converted preferentially. In this way, high catalytic efficiency and fatty alcohol selectivity can be obtained at a low temperature (150 C). Further increasing reaction temperature to 170 C, the reactant can be hydrodeoxygenated to form diesel-range alkanes. This developed NiRe/SBA-15 catalytic system highlights a great prospect for production of valuable fatty alcohols and alkanes from the conversion of bioderived fatty acids under mild conditions.