基于Cu/Au纳米孔阵列薄膜的抗坏血酸传感器
An Electrochemical Ascorbic Acid Sensor Based on Nanoporous Cu/Au Array Film
DOI: 10.12677/MS.2020.101008, PDF,  被引量    科研立项经费支持
作者: 刘 刚, 秦丽溶, 刘 松, 赵建伟*：西南大学物理科学与技术学院，重庆
关键词: 金属；纳米结构；抗坏血酸；无酶传感器；Metal； Nanostructures； Ascorbic Acid； Non-Enzymatic Sensor
摘要: 以有序多孔氧化铝的表面为模板，借助直流溅射和热蒸发镀膜的方法分别沉积Au和Cu膜层，去除模板后获得Cu/Au纳米孔阵列薄膜。该薄膜由六方规则排列的凹型纳米孔构成，孔的开口直径约为60 nm，内孔直径约为25 nm，孔中心间距约115 nm。将该纳米孔阵列转移至ITO玻璃上封装后，可直接用作高灵敏的无酶抗坏血酸检测电极，灵敏度可达2207 μA/(mmol•cm2)，线性范围为2~6000 μmol/L，检出限为0.2 μmol/L，同时具有优良的抗干扰性和稳定性。本文中所制备的薄膜型传感器电极，容易与微流控技术结合，为快速高灵敏的抗坏血酸检测提供新的途径。
Abstract: A simple method based on sputtering of Au film and thermal evaporation of Cu film onto the surface of anodic aluminum oxide template is presented. The ordered nanoporous Cu/Au array film would be obtained after dissolving the template. The prepared porous film consisted of ordered hexagonal array of concave nanoholes with a mouth diameter of 60 nm, an inner hole diameter of 25 nm, and a periodic distance of 115 nm. The prepared Cu/Au nanoporous film can be transferred onto an ITO substrate to be used directly as an effectively non-enzymatic ascorbic acid sensor. It exhibited excellent electrocatalytic performance with a high sensitivity of 2207 μA mM−1∙cm−2, a wide linear range of 2 μM to 6 mM, and a low detection limit of 0.2 μM. The satisfactory results obtained indicated that the proposed sensor electrode was promising for the development of a novel strategy for AA detection.
文章引用：刘刚, 秦丽溶, 刘松, 赵建伟. 基于Cu/Au纳米孔阵列薄膜的抗坏血酸传感器[J]. 材料科学, 2020, 10(1): 54-62. https://doi.org/10.12677/MS.2020.101008

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