文献类型：期刊文献

英文题名：CO hydrogenation to higher alcohols over Ni- and Mo-modified Cu/CeO2 catalyst

作者：Chen, Jun[1];Li, Wei[1];Shen, Rongchun[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2016

卷号：33

期号：2

起止页码：500

外文期刊名：KOREAN JOURNAL OF CHEMICAL ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000369427800014)】；

语种：英文

外文关键词：Co-precipitation; NH3 center dot H2O; Higher Alcohol; Pyrogallol; Temperature Addictive Agent

摘要：Ni-Mo promoted Cu/CeO2 catalyst was synthesized by co-precipitation method using 28%wt NH3 center dot H2O as the precipitant. The catalysts were characterized by BET, XRD, TPR and XPS. The results showed that Ni and Mo could promote the reducibility of Cu, and the interaction between Ni and Mo may be needed for catalytic activity and higher alcohols synthesis. Therefore, CuNiMo/CeO2 catalyst showed a higher activity for higher alcohols synthesis than Cu/CeO2. In the meantime, the effect of pyrogallol used in preparing the CuNiMo/CeO2 catalyst was investigated. Pyrogallol had a significant influence on lowering the methanol selectivity and improving the C2+-OH selectivity. The methanol selectivity decreased from 52.99% to 44.81% and S (C2+OH) /S (MeOH) (MeOH denoted as methanol) ratio increased from 0.27 to 0.35. The XPS results gave evidence that pyrogallol can form complexes with Cu+ on the CeO2 support, which causes methanol decrease. In addition, pyrogallol could serve as a "temperature addictive agent" to save power.