N-doped interconnected carbon sheets for energy storage application

• N-doped porous carbon with interconnect nanosheets were synthesized by the pyrolysis of R6G derivant.
• This N-doped carbon nanosheets owns the largest surface area of 1200 m2/g.
• This carbon sheets based symmetric device could deliver a high energy density of 10.4 Wh/kg.

Porous carbonaceous materials are promising candidate to meet the requirement for green energy storage because they have been widely applied for batteries and electrochemical capacitors (ECs). However, the specific capacitance of carbon-based ECs usually can’t over 200 F/g which restrict their application for high energy required electronics. Here, we report the synthesis of N-doped carbon interconnect nanosheets through directly carbonizing Rhodamine 6G derivant (R6GK). This carbonaceous material owns a high capacitance of 299 F/g as well as excellent cycling stability. The symmetric device assembled with this carbon sheets could deliver an energy density over 10 Wh/kg, suggesting its high potential for practical application.

N-doped carbon interconnect nanosheets were fabricated by directly carbonizing Rhodamine 6G derivant. This carbonaceous material owns a high capacitance of 299 F/g as well as excellent cycling stability.Figure optionsDownload as PowerPoint slide