Jump to main content
Jump to site search


Facile synthesis of porous carbon materials with extra high nitrogen content for supercapacitor electrodes

Author affiliations

Abstract

Herein, we report the facile synthesis of three-dimensional porous nitrogen-doped carbon materials (PNCs) with extra high nitrogen content by means of directly carbonizing nitrogen-enriched precursors, 1,2,4-benzenetriamine dihydrochloride (BTD) and 1,2,4,5-tetraaminobenzene (TAB) with the aid of FeCl3·6H2O. The influence of the carbonization temperature and selection of precursors on the morphologies and properties of PNCs were studied using scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), X-ray diffraction (XRD), etc. Their electrochemical performance was characterized using galavanostatic charge–discharge (GCD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). A PNC obtained by carbonizing BTD at 450 °C exhibits a high nitrogen content (about 23.85 wt%), and large surface area (1335 m2 g−1). As a result, it shows a high specific capacitance of 482 F g−1 at a current density of 1 A g−1 in 1 M H2SO4 and excellent cycle stability, 98% retention after 12 000 cycles. Furthermore, a liquid sandwich-structured symmetric supercapacitor assembled from this PNC can power a light stopwatch for about 10 minutes, demonstrating that it is a promising material for supercapacitor electrodes.

Graphical abstract: Facile synthesis of porous carbon materials with extra high nitrogen content for supercapacitor electrodes

Back to tab navigation

Supplementary files

Publication details

The article was received on 10 Nov 2018, accepted on 24 Jan 2019 and first published on 25 Jan 2019


Article type: Paper
DOI: 10.1039/C8NJ05718D
Citation: New J. Chem., 2019, Advance Article

  •   Request permissions

    Facile synthesis of porous carbon materials with extra high nitrogen content for supercapacitor electrodes

    Y. Liu, X. Hao, L. Wang, Y. Xu, J. Liu, X. Tian and B. Yao, New J. Chem., 2019, Advance Article , DOI: 10.1039/C8NJ05718D

Search articles by author

Spotlight

Advertisements