摘要
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/ZrO2 was more active than Pt/ZrO2 while Pt-Ru/ZrO2 demonstrated the best catalytic activity due to the fact that Pt addition efficiently promoted the dispersion of active species in bimetallic catalyst. Therefore, the - 100% TOC conversion and N2 selectivity were achieved over Pt-Ru/ZrO2, Pt/ZrO2 and Ru/ZrO2 catalysts at 190, 220 and 250 ℃, respectively.
基金
Supported by the National Natural Science Foundation of China(21373245,21173242)
the State Key Development Program for Basic Research of China(2013CB632404)
the National High Technology Research and Development Program of China(2012AA051501)
the Project Support of Gansu Provincial Science &Technology Department(1304FKCA085)
