通过水热法制备了CuS纳米笼@MnO₂纳米片核壳材料，笼状结构作为支撑载体为材料提供坚固的骨架，避免了片层结构的团聚。将CuS纳米笼@MnO₂纳米片/玻碳电极用于对多巴胺浓度检测，结果表明，CuS纳米笼@MnO₂纳米片/玻碳电极在0.02~8.78 μmol/L和13.78~112.78 μmol/L两段线性范围内的灵敏度分别为619.9 μA/[mmol/（L·cm²）]和318.7 μA/[mmol/（L·cm²）]。复合材料电极的灵敏度显著优于单一组分的MnO₂纳米片/玻碳电极和CuS纳米笼/玻碳电极，且具有优异的选择性、重复性以及较好的稳定性。

CuS nanocages@MnO₂ nanosheets core-shell material is prepared via a hydrothermal method.The cage-like CuS acts as a support carrier to avoid agglomeration of the lamellar structure and provides a strong skeleton for MnO₂ nanosheets.CuS nanocages@MnO₂ nanosheets/glass-carbon electrode is used to detect the concentration of dopamine, and the results show that the sensitivities of CuS nanocages@MnO₂ nanosheets/glassy carbon electrode in the two linear ranges of 0.02-8.78 μmol·L^-1 and 13.78-112.78 μmol·L^-1 are 619.9 μA/(mmol·L^-1·cm²) and 318.7 μA/(mmol·L^-1·cm²), respectively, which are significantly better than those of MnO₂ nanosheets/glassy carbon electrode and CuS nanocages/glassy carbon electrode.In addition, CuS nanocages@MnO₂ nanosheets/glassy carbon electrode exhibits excellent selectivity, repeatability as well as good stability.

潘宪清(1999-),男,硕士生,研究方向为电化学生物传感器,pxq101010@163.com。