文献类型：期刊文献

英文题名：Highly efficient alloyed NiCu/Nb2O5catalyst for the hydrodeoxygenation of biofuel precursors into liquid alkanes

作者：Wang, Peiying[1];Jing, Yaxuan[1];Guo, Yong[1];Cui, Yan[2,3];Dai, Sheng[2,3];Liu, Xiaohui[1];Wang, Yanqin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysts, Shanghai Key Lab Funct Mat Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[3]East China Univ Sci & Technol, Sch Chem & Mol Engn, Inst Fine Chem, Feringa Nobel Prize Scientist Joint Res Ctr, Shanghai 200237, Peoples R China

年份：2020

卷号：10

期号：13

起止页码：4256

外文期刊名：CATALYSIS SCIENCE & TECHNOLOGY

收录：;EI(收录号：20202808930314);WOS:【SCI-EXPANDED(收录号:WOS:000547719400008)】；

基金：This work was supported financially by the NSFC of China (No. 21832002, 21872050, 21808063), the Fundamental Research Funds for the Central Universities (222201718003), and the Science and Technology Commission of Shanghai Municipality (18ZR1408500, 10dz2220500). Additional support was provided by the Feringa Nobel Prize Scientist Joint Research Center.

语种：英文

外文关键词：Biofuels - Precious metals - Acetone - Binary alloys - Catalysts - Nickel alloys - Paraffins

摘要：Hydrodeoxygenation (HDO) is a crucial process for the synthesis of biofuels from renewable biomass. Here, several bimetallic Ni-M/Nb(2)O(5)catalysts (M = Fe, Co, Cu) were synthesized and evaluated in the HDO of biofuel precursors (aldol adduct of furfural with acetone) to liquid alkane and it was found that Ni-Cu/Nb(2)O(5)has the best performance (86.5% yield of octane and 5.1% yield of heptane). Various characterization techniques show that Ni-Cu alloy is formed over the Ni-Cu/Nb(2)O(5)catalyst, which may have the main active metal sites. Moreover, the Ni-Cu alloy has more sites for the adsorption-activation of H-2, leading to the high activity. During the HDO process, the ring-opening of the intermediate butyl-tetrahydrofuran (BTHF) and the conversion of octanol are two rate-determining steps. The kinetic study confirms that the ring-opening of BTHF over Ni-Cu/Nb(2)O(5)is more favorable than that over Ni/Nb2O5. More importantly, the Ni-Cu alloy significantly restrained the undesirable decarbonylation due to the weak adsorption of carbonyl, which was key for the efficient production of C(n)alkanes. This work provides an in-depth understanding of the role of Ni-Cu alloys and new insights into the design of non-noble metal catalysts for the HDO of biofuel precursors.