Nanoporous metal phosphate CoVSB-1 catalyst for oxidation of styrene with H2O2
Catalytic properties of nanoporous metal phosphates CoVSB-1 and VSB-1 were investigated in the selective oxidation of styrene to benzaldehyde with hydrogen peroxide as oxidant. The corresponding conversion and selectivity over calcined 52-CoVSB-1 were 35.7％ and 60.8％, respectively. Whereas VSB-1, 11-CoVSB-1 and 31-CoVSB-1 show poor selectivity to benzaldehyde. The relationship between framework structure and the catalytic activity of CoVSB-1 was studied. It is found that the tetrahedral cobalt centers acted as active sites in the catalytic reaction and the increased basicity favored the formation of benzaldehyde. The behavior of P-OH and the coordination configurations of Co2+ and Ni2+ were studied through FT-IR and UV-vis methods.
L. L. Xie Q. M. Gao Q. H. Lib
State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Graduate School of Department of Environmental Engineering, Shanghai Second Polytechnic University, Shanghai 201209
国际会议
北京
英文
2007-08-12（万方平台首次上网日期，不代表论文的发表时间）