Research Center for Time-Domain Nano-Functional Devices, Korea University, Seoul 136-701, Republic of Korea.
Talanta. 2010 Mar 15;80(5):1648-52. doi: 10.1016/j.talanta.2009.09.061. Epub 2009 Oct 7.
The electrocatalytic activity of a CuO flower-like nanostructured electrode was investigated in terms of its application to enzyme-less amperometric H(2)O(2) sensors. The CuO nanoflowers film was directly formed by chemical oxidation of copper foil under hydrothermal condition and then used as active electrode material of non-enzymatic electrochemical sensors for H(2)O(2) detection under alkaline conditions. The sensitivity of the sensor with CuO nanoflowers electrode was 88.4 microA/mM cm(2) with a linear response in the range from 4.25 x 10(-5) to 4 x 10(-2)M and a detection limit of 0.167 microM (S/N=3). Excellent electrocatalytic activity, large surface-to-volume ratio and efficient electron transport property of CuO nanoflowers electrode have enabled stable and highly sensitive performance for the non-enzymatic H(2)O(2) sensor.
采用无酶安培法，研究了氧化铜花状纳米结构电极的电催化活性，将其应用于 H2O2 传感器。在水热条件下，通过铜箔的化学氧化直接形成氧化铜纳米花薄膜，并将其用作非酶电化学 H2O2 传感器在碱性条件下检测 H2O2 的活性电极材料。用氧化铜纳米花电极的传感器的灵敏度为 88.4 μA/mM cm2，在 4.25×10(-5)~4×10(-2)M 的范围内呈线性响应，检测限为 0.167 μM（S/N=3）。氧化铜纳米花电极具有优异的电催化活性、大的表面积与体积比和有效的电子传输特性，使其对非酶 H2O2 传感器具有稳定和高灵敏度的性能。
