Low-temperature synthesis of 3D copper selenide micro-flowers for high-performance supercapacitors

An interesting strategy for synthesizing three-dimensional (3D) copper selenides micro-flowers (CuSe-MFs) by a facile wet-chemical process is reported for the supercapacitor's (SCs) electrode. The sample was characterized by XRD, SEM, and XPS. Moreover, advancing from the high intrinsic activity and microstructural properties, the CuSe-MFs electrode exhibits a high capacitance (490 F g(-1) at 1.5 A g(-1)), excellent rate performance 66% at 5 A g(-1), and superb stability of 88% after 11,090 cycles at 10 A g(-1). The present study contributes substantially to the research of CuSe with complex architecture and the future application in high-performance SCs.

Automated summary

An interesting strategy for synthesizing three-dimensional copper selenides micro-flowers for supercapacitor's electrode by a simple wet-chemical process is reported. The sample was characterized by XRD, SEM, and XPS. The CuSe-MFs electrode exhibits high capacitance, excellent rate performance, and superb stability, contributing substantially to the research of complex copper selenides architecture and the future application in high-performance supercapacitors.