Direct propylene epoxidation with H-2 and O-2 over In modified Au/TS-1 catalysts

作者：Lu Ji Qing^*; Li Na; Pan Xiao Rong; Zhang Chao; Luo Meng Fei

来源：Catalysis Communications, 2012, 28: 179-182.

DOI：10.1016/j.catcom.2012.09.005

• Propylene epoxidation
• Au/TS-1 catalyst
• In promotion
• Au capture efficiency

A series of In promoted Au/TS-1 catalysts was prepared and tested for direct propylene epoxidation with H-2 and O-2. The In promotion could effectively enhance the reactivity and stability of the catalysts. A PO formation rate of 56 g(PO)h(-1) kg(cat)(-1) was obtained over a 0.57Au/0.4In-TS-1 catalyst, which was about 80% enhancement compared to an un-promoted 0.25Au/TS-1 catalyst (32 g(PO)h(-1) kg(cat)(-1)). The enhancement was due to a higher Au capture efficiency by the modification of In on the TS-1 surface, and a higher dispersion of Au species in the catalyst.

• 出版日期2012-11-5
• 单位浙江师范大学