Abstract
AbstractA nitrogen‐doped porous carbon monolith (N‐PCM) was synthesized following a simple self‐assembly method in a one‐pot hydrothermal process. A solution of hexamethylenetetramine (HMT) in formaldehyde and ammonia was used as partial carbon precursor and nitrogen source, respectively. The monolithic polymer was formed through self‐assembly of formaldehyde and resorcinol catalyzed by ammonia. After the annealing process, the N‐PCM was prepared. The N‐PCM with tailorable macrostructure possessed a high specific surface area (1124 m2 g−1), rich porous structure and reasonable N content (up to 2.1 %). Used as binder‐free all‐carbon supercapacitor electrode, the N‐PCM allowed efficient migration of electrolyte ions and electrons, showing a high specific capacitance up to 202 F g−1 at a current density of 1 A g−1, and favorable capacitance retention (93.5 % capacitive retention after 5000 cycles) in a 6 M KOH solution. This advanced monolith carbon material with high surface area and controllable morphology produced in a simple and efficient method could be used as a promising electrode material for high‐performance supercapacitors.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.