Ni(OH)_(2)/FTO纳米片阵列的制备及其对葡萄糖电催化性能的研究

Preparation of Ni(OH)_(2)/FTO Nanosheets Array and Its Electrocatalytic Performance for Glucose

以FTO导电玻璃作为基底,利用水热法制备得到氢氧化镍纳米片阵列。通过扫描电子显微镜(SEM)和透射电子显微镜(TEM)研究该材料的介观形貌和材料晶型。利用循环伏安、计时电流和交流阻抗等电化学方法对葡萄糖的电催化性能进行测试。实验结果表明Ni(OH)_(2)纳米片阵列电极在+0.65 V出现明显的氧化峰,检测上限为0.9 mmol/L,灵敏度为0.6 mA/cm^(2)/(mmol/L),说明该材料具有较强的电催化性能,同时具有响应速度快的特点。

Nickel hydroxide nanoflake arrays were prepared by hydrothermal method using FTO conductive glass as substrate. The mesoscopic morphology and crystal form of the material were studied by scanning electron microscopy(SEM) and transmission electron microscopy(TEM). Cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy were used to test the electrocatalytic performance of glucose. The experimental results showed that Ni(OH)_(2) nanoflake array electrode had an obvious oxidation peak at +0.65 V, the detection limit was 0.9 mmol/L, and the sensitivity was 0.6 mA/cm^(2)/(mmol/L), indicating that the material had strong electrocatalytic performance and fast response speed.