作　　者： ; ;

机构地区： 中国科学技术大学化学与材料科学学院化学系

出　　处： 《无机化学学报》 2010年第4期573-580,共8页

摘　　要： 采用水热合成法制备了Co3O4及复合Ag/Co3O4、CuO/Co3O4一维纳米产品。用XRD,FE-SEM和TEM手段对产品进行了表征。采用循环伏安法研究了合成产品修饰的玻碳电极在碱性溶液中对对硝基苯酚的电催化还原性能。与裸玻碳电极相比,1mmol·L-1的对硝基苯酚在用Co3O4、特别是CuO/Co3O4修饰的玻碳电极上还原的峰电流明显增大,用Ag/Co3O4(Ag/Co原子比分别为1∶5和2∶5)修饰的玻碳电极催化还原对硝基苯酚时,尽管还原峰电流增大不是太大,但其峰电位明显降低(分别降低0.265和0.371V)。 One-dimensional Co3O4 as well as composite Ag/Co3O4 and CuO/Co3O4 products were synthesized via a hydrothermal method. The as-prepared samples were characterized by XRD, field emission scan electron microscopy （FE-SEM） and TEM techniques. The electrocatalytic properties for p-nitrophenol reduction in a basic solution using a glassy carbon electrode（GCE） modified with the as-synthesized samples were determined utilizing cyclic voltammetry method. Compared to a bare GCE, 1 mmol·L^-1 p-nitrophenol could be reduced with an obviously larger peak current values on the GCE modified with Co3O4, especially with CuO/Co3O4 samples. Although the increase in the reduction peak current value is not very high in the case of Ag/Co3O4 modified GCEs with nAg/nCo ratio of 1 ∶5 and 2 ∶5, respectively, p-nitrophenol could be reduced at the lower potential（the decrease in reduction peak potential is about 0.265 and 0.371 V, respectively）.

关 键 词： 电催化 对硝基苯酚

领　　域： [理学] [理学] [理学] [理学]