氧化锆负载的铂-钌、铂和钌催化剂对一甲胺的选择性催化氧化（英文）

• 作 者: 宋爱英 吕功煊
• 机 构: State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physic
• 出 处: Chinese Journal of Chemical Engineering
• 发表日期: 2015年07期
• 关键词: 一甲胺 selectivity 催化氧化 impregnation 催化剂 wastewater 选择性 zirconia promoted spectrome

Pt–Ru, Pt and Ru catalysts supported on zirconia were prepared by impregnation method and were tested in selective oxidation of methylamine(MA) in aqueous media. Among three catalysts, Ru/Zr O2 was more active than Pt/Zr O2 while Pt–Ru/Zr O2 demonstrated the best catalytic activity due to the fact that Pt addition ef ficiently promoted the dispersion of active species in bimetallic catalyst. Therefore, the ~ 100% TOC conversion and N2 selectivity were achieved over Pt–Ru/Zr O2, Pt/Zr O2 and Ru/Zr O2 catalysts at 190, 220 and 250 °C, respectively.

Pt-Ru, Pt and Ru catalysts supported on zirconia were prepared by impregnation method and were tested in selective oxidation of methylamine (MA) in aqueous media. Among three catalysts, Ru / Zr O2 was more active than Pt / Zr O2 while Pt- Ru / Zr O2 demonstrated the best catalytic activity due to the fact that Pt addition ef ficiently promoted by dispersion active species in bimetallic catalyst. Thus, the ~ 100% TOC conversion and N2 selectivity were achieved over Pt-Ru / Zr O2, Pt / Zr O2 and Ru / Zr O2 catalysts at 190, 220 and 250 ° C, respectively.