用于高效非酶促过氧化氢传感的CoO颗粒/还原氧化石墨烯复合材料的电泳沉积

Electrophoretic Deposition of CoO Particles/Reduced Graphene Oxide Composites for Efficient Non-Enzymatic HO Sensing.

作者信息

Wang Qian, Wang Yuzhe, Xiao Guiyong, Zhu Xinde

机构信息

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, School of Materials Science and Engineering, Shandong University, Jinan 250061, China.

Shandong Engineering & Technology Research Center for Superhard Material, Jinan 250061, China.

出版信息

Materials (Basel). 2023 Feb 1;16(3):1261. doi: 10.3390/ma16031261.

In this work, the facile fabrication of CoO particles/reduced graphene oxide (CoO/rGO) composites on Indium tin oxide (ITO) slide was achieved by an electrophoretic deposition and annealing process. The deposition time and ratio of the precursors were optimized. Structural characterization and chemical composition investigation indicated successful loading of CoO particles on graphene sheets. When applied as a non-enzymatic HO sensor, CoO/rGO showed significant electrocatalytic activity, with a wide linear range (0.1-19.5 mM) and high sensitivity (0.2247 mA mM cm). The good anti-interference ability, reproducibility, and long-term stability of the constructed sensor were also presented. The application of CoO/rGO in real sample analysis was evaluated in human urine sample with satisfactory results, indicating the feasibility of the sensor in physiological and medical applications.