Abstract
Biomass materials are promising precursors for the production of carbonaceous materials due to their abundance, low cost and renewability. Here, a freestanding wrinkled carbon membrane (WCM) electrode material for flexible supercapacitors (SCs) was obtained from flower petal. The carbon membrane was fabricated by a simple thermal pyrolysis process and further activated by heating the sample in air. As a binder and current collector-free electrode, the activated wrinkled carbon membrane (AWCM) exhibited a high specific capacitance of 332.7 F/g and excellent cycling performance with 92.3% capacitance retention over 10000 cycles. Moreover, a flexible all-solid supercapacitor with AWCM electrode was fabricated and showed a maximum specific capacitance of 154 F/g and great bending stability. The development of this flower petal based carbon membrane provides a promising cost-effective and environmental benign electrode material for flexible energy storage.
Highlights
Biomass materials are promising precursors for the production of carbonaceous materials due to their abundance, low cost and renewability
The synthesis of these nanocarbons suffers from the drawbacks of the high cost chemical vapor deposition (CVD) process or the environmental issues related to the usage of toxic chemicals
wrinkled carbon membrane (WCM) was prepared by a thermal pyrolysis process at 1000 °C under the protection of Ar
Summary
Biomass materials are promising precursors for the production of carbonaceous materials due to their abundance, low cost and renewability. A freestanding wrinkled carbon membrane (WCM) electrode material for flexible supercapacitors (SCs) was obtained from flower petal. As a binder and current collector-free electrode, the activated wrinkled carbon membrane (AWCM) exhibited a high specific capacitance of 332.7 F/g and excellent cycling performance with 92.3% capacitance retention over 10000 cycles. A flexible all-solid supercapacitor with AWCM electrode was fabricated and showed a maximum specific capacitance of 154 F/g and great bending stability The development of this flower petal based carbon membrane provides a promising costeffective and environmental benign electrode material for flexible energy storage. The carbon membrane is highly flexible and a symmetric all-solid SC with high flexibility was fabricated, which exihibits a specific capacity of 154 F/g, outperforming other porous carbon based SCs. The performance of the device under bending is very stable and no apparent capacitance decay was found after 10 bending cycles
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
