| 钴酸镍空心球的合成及其抗坏血酸电化学敏感性能 |
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| 引用本文： | 杨秋媚,丁雷,涂进春,曹阳.钴酸镍空心球的合成及其抗坏血酸电化学敏感性能[J].材料科学与工程学报,2018(3):443-448. |
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| 作者姓名： | 杨秋媚 丁雷 涂进春 曹阳 |
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| 作者单位： | 海南大学材料与化工学院,海南海口,570228 |
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| 基金项目： | 国家自然科学基金资助项目(002003088)，海南省自然科学基金资助项目(213012)海南省教育厅自然科学基金资助项目(Hjkj2012-08) |
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| 摘 要： | 本文以氧化亚铜小球为模板,采用简单温和的化学方法成功刻蚀制备出了钴酸镍空心球。通过多种表征手段对样品的形貌及组成进行了表征,结果表明,钴酸镍为空心结构并保持了氧化亚铜的形貌,粒径约为350nm,具有多晶的特征。将该材料修饰的电极应用到抗坏血酸电化学传感器中,测试结果表明,其对抗坏血酸的检测极限为3×10-7 M(S/N=3),线性相关系数为0.9993,线性检测范围为0.1~3mM,灵敏度高达1148.7μA·mM-1·cm-2,并具有良好的选择性。
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| 关 键 词： | 钴酸镍 空心球 抗坏血酸 非酶传感器 NiCo2O4 hollow sphere ascorbic acid non-enzymatic sensor |
NiCo2O4Hollow Spheres :Synthesis of and Electrochemical Sensitivity against Ascorbic Acid |
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| YANG Qiumei,DING Lei,TU Jinchun,CAO Yang.NiCo2O4Hollow Spheres :Synthesis of and Electrochemical Sensitivity against Ascorbic Acid[J].Journal of Materials Science and Engineering,2018(3):443-448. |
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| Authors: | YANG Qiumei DING Lei TU Jinchun CAO Yang |
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| Abstract: | NiCo2O4 hollow spheres were prepared via a facile and mild chemical etching process with Cu2O spheres as hard template . Experimental characterization certified that the obtained NiCo2O4 hollow spheres had the morphology of Cu2O and were highly homogeneous dispersed with polycrystalline structure . The NiCo2O4 modified glassy carbon electrode (GCE) was used for selective detection of ascorbic acid .The results showed that it performed a detection limit of 3×10－7M (S/N＝3) ,a wide linear ranged up to 0.1mM～3mM ,a high sensitivity of 1148.7μA·mM －1·cm －2and a good selectivity . |
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