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《Journal of Synthetic Crystals》 2007-03
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Influence of Different Surface Active Agents on the Preparation of Nanometer ZnO/ZrO_2 and the Desulphurization Properties

GU Hua-zhi,WANG Hui-feng,WANG Hou-zhi,WANG Jiao (The Hubei Province Key Laboratory of Ceramics and Refractories,Wuhan University of Science and Technology,Wuhan 430081,China)  
The influence of different surface active agents on phase and structure of nanometer ZnO/ZrO2 catalyst prepared by co-precipitation-vacuum drying method has been investigated in the paper,and the desulphurization properties of the catalyst has been measured by gas chromatograph in simulated flue gas.The results show that the addition of surface activators can reduce the average crystal grain size of nanometer ZrO2.Comparing with surface active agents Tween 80,PEG-400 and PVA,ammonium citrate and DBS can restrain the germination of crystal grain more efficiently,then the average grain size of nanometer ZrO2 is smaller and the desulphurization rate is higher;since the surface active agent PEG-400 has the ability to complexate positive ion which can prevent nanometer active components from agglomerating and growing up,so the catalytic absorption for SO2 is the best.
【Fund】: 湖北省自然科学基金资助项目(No.2003ABA079)
【CateGory Index】: TB383.1
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