Preparation Of Copper Oxide With Micro/Nano Structures And Their Application In Glucose Electrochemical Sensors

The population of the diabetes is becoming more and more all over the world.Therefore, it is very important to develop a rapid, high sensitive and high selectivemethod to determinate the glucose in blood. Due to the advantages of quick response,high sensitivity, high selectivity, simple operation, low cost and so on, theelectrochemical sensor is widely used to detect glucose concentration. In this paper,based on copper oxide a series of research works about glucose sensor were explored.The content is including the following three parts:In the first part, we have synthesized octahedral Cu₂O microcrystalline byelectrochemical method, which was distributed uniformly on the surface of the copperelectrode. In this method, we have completed the synthesis of Cu₂O microcrystallinematerials and the construction of the electrode was achieved in one step. Moreover, inthis synthesis method the strong force between materials and electrode make thematerials be not easy to fall off from the surface of the electrode. The Cu₂Omicrocrystalline material has large specific surface area and it has a strong catalyticactivity towards glucose, so it was used to prepared glucose sensor.In the second part, we have synthesized two kinds of Cu-MOFs withhydrothermal method and accomplished the transformation between the two MOFsmaterials through changing the kind of solvent. In addition, CuO nanoparticles wereproduced by immersing the Cu-MOFs materials into alkaline solution. The twoas-synthesized CuO nanoparticles have large specific surface area and exhibitsuperior electrocatalytic activity. They were used to build new nonenzymatic glucosesensors with high sensitivity, wide linear range, low detection limit and goodstability, which are expected to be applied in practical detection.In last, we have synthesized Cu_xO （Cu₂O and CuO） micro/nano materials on thesurface of copper sheet. The morphology of the crystal was controlled by adjustingelectrolyte solution. A variety of different structure of Cu_xO micro/nano materialswere synthesis rapidly. Here we chose the cubic crystal of Cu_xO to construct annonenzymatic glucose sensors and the electro-catalytic activity of the electrode was researched.