Preparation of Hierarchical MnCo2S4 Nanotubes for High-Performance Supercapacitors and Non-Enzymatic Glucose Sensors

摘要

Hierarchical MnCo2S4 nanotubes have been successfully prepared via a facile self-template approach. The as-prepared hierarchical MnCo2S4 nanotubes are evaluated as electrode materials for supercapacitors, which exhibits a specific capacitance of 705.2Fg(-1) at 0.5Ag(-1) and a remarkable cycling performance. Moreover, the hierarchical MnCo2S4 nanotubes are also applied in non-enzymatic glucose sensors, which possesses good electrocatalytic performances with a low determination limit (0.1M) and good selectivity. In addition, yolk-shelled MnCo2O4 prisms were also prepared via the self-template method. The electrochemical performance of the yolk-shelled MnCo2O4 prisms were also studied. It is found that the as-prepared hierarchical MnCo2S4 nanotubes show better electrochemical performances than yolk-shelled MnCo2O4 in this work.