Pd-Al/AC Catalysts for Direct Synthesis of H2O2 with High Productivity

被引：4
作者：
Liang, Wuyang [1 ,2 ]
Dong, Jinfeng [1 ,2 ]
Yao, Mengqin [1 ,2 ]
Fu, Jinsong [1 ,2 ,3 ]
Chen, Honglin [1 ]
Zhang, Xiaoming [1 ]
机构：
[1] Chinese Acad Sci, Chengdu Inst Organ Chem, 9,Sect 4,Renmin South Rd, Chengdu 610041, Peoples R China
[2] Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
[3] Sichuan Normal Univ, Coll Chem & Mat Sci, 5 Jingan Rd, Chengdu 610068, Peoples R China
来源：
CHEMISTRYSELECT | 2020年 / 5卷 / 42期
关键词：
Aluminum addition; Heterogeneous catalysis; Palladium dispersion; Supported catalysts; Valence state of palladium; HYDROGEN-PEROXIDE; H-2; NANOPARTICLES; O-2; OXYGEN;
D O I：
10.1002/slct.202003291
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this study, activated carbon (AC) supported Pd and PdAl bimetallic catalysts were prepared and tested for direct synthesis of hydrogen peroxide (H2O2). The PdAl/AC catalyst showed higher H2O2 productivity (80 mol H2O2 kg(cat)(-1) h(-1)) than Pd/AC catalyst. The characterization results indicated that the addition of Al not only enhanced the content of Pd-II, but also increased the dispersion of Pd. In PdAl/AC catalysts, Pd was finely dispersed on carbon surface and consisted entirely of the adsorbed PdCl2. It is expected that the increase in the dispersion of Pd and the content of Pd-II in the fresh catalyst is critical for the improvement of H2O2 production.
引用
收藏
页码：12910 / 12914
页数：5
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