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中文摘要：
在正硅酸乙酯（TEOS）和硝酸铜（Cu（NO3）2.3H2O）复合溶胶体系中引入干燥控制化学添加剂（DCCA）N,N-二甲基甲酰胺（DMF）,采用溶胶-凝胶法（Sol-Gel Method）和常压干燥工艺,制备了具有高比表面积的Cu-SiO2复合气凝胶.研究了铜负载质量、催化剂浓度及热处理等不同条件对Cu掺杂SiO2复合气凝胶结构的影响.结果表明,气凝胶颗粒呈均匀分布,其孔径主要分布在2～15nm之间;Cu含量的增加有利于CuO晶粒的生成以及比表面和孔体积的减小;催化剂的浓度较高时,硅氧网络的聚合程度随催化剂浓度的增大而减弱.高温热处理后复合气凝胶表现出良好的热稳定性.
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