Carbon fiber cloth supported interwoven WS2 nanosplates with highly enhanced performances for supercapacitors

The interwoven WS2 nanoplates supported on carbon fiber cloth (WS2/CFC) have been successfully synthesized by a facile solvothermal process. XRD and XPS confirm the formation of WS2/CFC. SEM images show the good dispersion of WS2 nanoplates with interwoven structures on the surface of CFC. Thanks to the 3D framework of CFC, WS2 nanoplates realize overall excellent-dispersion interwoven on the surface of CFC compared with pristine bulk WS2 with severe aggregation. Moreover, CFC not only serves as excellent conductive substrate to accelerate electron transport rate, but also contributes to the close combination between WS2 and CFC for long-term stability. The electrochemical measurements show that WS2/CFC exhibit a high specific capacitance of 399 F g(-1) at 1.0A g(-1), demonstrating the obviously enhanced capability compared with pristine bulk WS2. Furthermore, WS2/CFC realizes ultra-stable cycling stability with 99% of retention of capacitance after 500 charge-discharge cycles. It may provide novel access of designing carbon-based transition metal disulfides composites for excellent super capacitive properties. (C) 2016 Elsevier B.V. All rights reserved.