Template-free synthesis of N-doped carbon with pillared-layered pores as bifunctional materials for supercapacitor and environmental applications
Abstract
Cross-linked, N-doped, pillared-layered porous carbons (NCs) were prepared via a one-pot, template-free pyrolysis process at 600 (NC600), 700 (NC700) and 800 °C (NC800), which have bifunctional applications in supercapacitors and environmental remediation. NC700 displays a high surface area (2118 m2 g−1) and a specific capacitance of 305 F g−1 at 0.2 A g−1 in a two-electrode setup. The maximum energy density of NC700 was 20.4 W h/kg at a power density of 139 W kg−1 and 89.1% capacitance was retained after 10000 cycles of charge-discharge at 5 A g−1. For water remediation, NC800 displayed high adsorption capacities towards flame retardant tetrabromobisphenol A (TBBPA, 372 mg g−1) and antibiotic sulfachloropyridazine (SCP, 288 mg g−1) solutions, while NC700 showed the most efficient SCP oxidation removal. These results suggest low-cost and green carbon materials as electrodes in flexible energy storage devices, metal-free adsorbents as well as catalysts for high efficient removal of emerging contaminants in aqueous solution.
RAS ID
24664
Document Type
Journal Article
Date of Publication
2017
School
School of Engineering
Copyright
subscription content
Publisher
Elsevier
Comments
Tian, W., Zhang, H., Sun, H., Tadé, M. O., & Wang, S. (2017). Template-free synthesis of N-doped carbon with pillared-layered pores as bifunctional materials for supercapacitor and environmental applications, Carbon, 118, 98-105. https://doi.org/10.1016/j.carbon.2017.03.027