Selective oxidation of glucose to gluconic acid over argon plasma reduced Pd/Al2O3

被引:64
作者
Liang, Xi [1 ]
Liu, Chang-jun [1 ]
Kuai, Pingyu [1 ]
机构
[1] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1039/b804904a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An argon glow discharge plasma approach was employed to reduce PdCl2 supported on gamma-Al2O3 at ambient temperature. This environmentally benign reduction approach is energy efficient and economically effective. Characterizations using X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and energy dispersive X-ray spectrometer (EDX) confirmed that the ionic Pd could be effectively reduced to the metallic state during this room temperature plasma reduction. The activities of the plasma reduced catalysts were tested for selective oxidation of glucose to gluconic acid with conventional hydrogen reduced catalysts as comparison. The plasma reduced catalyst followed by calcination under argon atmosphere at 500 degrees C exhibits a higher activity than the hydrogen thermally reduced one. Furthermore, the high stability against leaching of active metal into the reaction medium, observed in the plasma reduced catalysts, is of importance in the potential industrial application.
引用
收藏
页码:1318 / 1322
页数:5
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