Add time:08/15/2019         Source:sciencedirect.com

Carbon anchored TITANIUM CARBONITRIDE (cas 12654-86-3) for supercapacitor electrode material was prepared by a direct semi-solid-sate carbonitridation method. The prepared sample is highly conductive and mesoporous (250 m2 g−1), enabling fast electron transfer and ion transport. As a result, a high capacitance of 360 F g−1 at 0.5 A g−1, and an impressive capacitance retention ratio 100Ag-1/1 A g−1 of 53%, as well as long cyclic capability (>10,000 cycles) can be obtained in 1 M H2SO4. The thick electrode also presents a high area capacitance up to 1.77 F cm−2. A flexible H2SO4/PVA symmetric supercapacitor was fabricated to demonstrate its practicality. Remarkably, the supercapacitor presents high-rate performance (up to 25 kW kg−1) and long cyclic performance (>10,000 cycles), illustrating its potential application in flexible integrated energy storage devices. This work provides a novel insight into designing and preparing carbonitride based materials for high performance supercapacitor.

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