Faculty of Chemistry, Northeast Normal University, Renmin Street 5268, Changchun 130024, Jilin, PR China.
Talanta. 2010 Apr 15;81(1-2):339-45. doi: 10.1016/j.talanta.2009.12.007. Epub 2009 Dec 16.
A simple and facile synthetic method to incorporate copper sulfide (Cu(2)S) nanoparticles inside the mesopores of ordered mesoporous carbons (OMCs) is reported. The Cu(2)S/OMCs nanocomposite was characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption-desorption. The results show that the incorporation of Cu(2)S nanoparticles inside the pores of OMCs does not change the highly ordered two-dimensional hexagonal mesostructure of OMCs matrix. Nonenzymatic amperometric sensor of hydrogen peroxide based on the Cu(2)S/OMCs nanocomposite modified glassy carbon (GC) electrode is developed. Compared with the pristine OMCs modified electrode, the Cu(2)S/OMCs modified electrode displays high electrocatalytic activity towards hydrogen peroxide and gives linear range from 1 to 3030 microM (R=0.9986). The sensor also exhibits good ability of anti-interference to electroactive molecules. The combination of the unique properties of Cu(2)S nanoparticles and the ordered mesostructure of OMCs matrix guarantee the excellent electrocatalysis for hydrogen peroxide. The good analytical performance and low-cost make Cu(2)S/OMC nanocomposite promising for the development of effective sensor for hydrogen peroxide.
报道了一种简便的方法，可将硫化铜（Cu(2)S）纳米颗粒掺入有序介孔碳（OMC）的介孔中。Cu(2)S/OMC 纳米复合材料通过透射电子显微镜（TEM）、X 射线衍射（XRD）、X 射线光电子能谱（XPS）和氮气吸附-脱附进行了表征。结果表明，Cu(2)S 纳米颗粒掺入 OMC 孔中不会改变 OMC 基体的高度有序二维六方介孔结构。基于 Cu(2)S/OMC 纳米复合材料修饰的玻碳（GC）电极，开发了非酶安培型过氧化氢传感器。与原始 OMC 修饰电极相比，Cu(2)S/OMC 修饰电极对过氧化氢具有高电催化活性，并给出了 1 至 3030μM 的线性范围（R=0.9986）。该传感器对电活性分子也具有良好的抗干扰能力。Cu(2)S 纳米颗粒的独特性质和 OMC 基体的有序介孔结构的结合保证了对过氧化氢的优异电催化性能。良好的分析性能和低成本使得 Cu(2)S/OMC 纳米复合材料有望开发出有效的过氧化氢传感器。
