Effect of Metal Dispersion on the Hydrogenation of 2-Amyl Anthraquinone over Pd/Al2O3 Catalyst

Journal of the Brazilian Chemical Society

Wang, Shudong¹  Ren, Gaoyuan¹  Li, Xiaotong¹  Su, Hongjiu¹  University of Chinese Academy of Sciences, Beijing, China¹  Chinese Academy of Sciences, Dalian, China¹ 

关键词:  anthraquinone hydrogenation;    H2O2;    dispersion;   

DOI  :  10.5935/0103-5053.20160001

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

A series of highly dispersed Pd/Al2O3 catalysts were prepared via the polyol method. The catalysts were characterized by nitrogen adsorption, X-ray diffraction (XRD), UV-Vis spectrophotometry, temperature programmed reduction (TPR) and transmission electron microscopy (TEM). The influence of Pd particle size on the hydrogenation of 2-amyl anthraquinone (AAQ) was investigated in a trickle-bed reactor. The turnover frequency (TOF) showed antipathetic size dependence while the space time yield (STY) peaked at 4 nm. Also, the selectivity and deactivation rate were affected by the size of palladium particles. The structure-sensitivity relations for the catalysts may be ascribed to the necessities of specific Pd cluster structure for the activation of π-bond.

【 授权许可】

Unknown