Effect of surface acidity/basicity on the selective hydrogenation of maleic anhydride to succinic anhydride over supported nickel catalysts
Effect of surface acidity/basicity on the selective hydrogenation of maleic anhydride to succinic anhydride over supported nickel catalysts
复制标题
表面酸度/碱度对负载型镍催化剂上顺丁烯二酸酐选择性加氢制丁二酸酐的影响
DOI：
10.1016/j.catcom.2018.02.016
复制
发表时间：
2018-05-10
影响因子：
3.7
通讯作者：
Shen, Jianyi
中科院分区：
文献类型：
--
作者：
Cai, Jingxuan;Zhu, Jianxin;Shen, Jianyi
制备了60%Ni/Al2O3、60%Ni/MgAlO和60%Ni/MgO催化剂，用于顺酐（MA）加氢制丁二酸酐（SA）。表征结果表明，Ni颗粒在催化剂中高度分散，具有高密度的活性Ni位点，反应活性高。特别地，发现表面酸度有利于MA在Ni上的转化，但不利于SA的选择性，而表面碱度则相反。Ni/MgAlO具有适宜的酸碱度，具有良好的反应性能。
The catalysts 60%Ni/Al2O3, 60%Ni/MgAlO and 60%Ni/MgO were prepared and used for the hydrogenation of maleic anhydride (MA) to succinic anhydride (SA). Characterization results showed that Ni particles were highly dispersed in the catalysts so that they possessed the high density of active Ni sites, and thus the high activities for the reaction. In particular, it was found that the surface acidity favored the conversion of MA on Ni, but was unfavorable for the selectivity to SA, while the surface basicity played the opposite role. The Ni/MgAlO exhibited the proper acidity and basicity and thus the excellent performance for the reaction.