Nitrogen-doped carbon composite derived from ZIF-8/polyaniline@cellulose-derived carbon aerogel for high-performance symmetric supercapacitors

Mengge Shang; Xinen Zhang; Jing Zhang; Jinqiang Sun; Xinfu Zhao; Shimo Yu; Xiaochan Liu; Benxue Liu; Xibin Yi

doi:10.1016/j.carbpol.2021.117966

Nitrogen-doped carbon composite derived from ZIF-8/polyaniline@cellulose-derived carbon aerogel for high-performance symmetric supercapacitors

Carbohydr Polym. 2021 Jun 15:262:117966. doi: 10.1016/j.carbpol.2021.117966. Epub 2021 Mar 19.

Authors

Mengge Shang¹, Xinen Zhang¹, Jing Zhang², Jinqiang Sun¹, Xinfu Zhao¹, Shimo Yu¹, Xiaochan Liu¹, Benxue Liu¹, Xibin Yi³

Affiliations

¹ Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, PR China.
² Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, PR China. Electronic address: zhangjing@sdas.org.
³ Shandong Key Laboratory for Special Silicon-containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, PR China. Electronic address: yixb@sdas.org.

PMID: 33838832
DOI: 10.1016/j.carbpol.2021.117966

Abstract

Cellulose derived carbon aerogel (CA) with unique three-dimensional network coated with polyaniline (PANI) on its surface is used as a scaffolding framework to anchor ZIF-8. The designed ZIF-8 derived porous carbon (ZC)/PANI@CA (ZPCA) hybrid carbon composite through a facile solution immersion chemical route and subsequent carbonization process is employed as electrode for supercapacitor, which has contributed a large specific surface area, a hierarchical porous structure and reasonable N content (up to 6.27 at.%). The synthesized ZPCA electrode achieves an outstanding capacitance of 388 F g^-1 at 0.5 A g^-1 as well as an excellent cycling performance. More inspiringly, the symmetric supercapacitor based ZPCA achieves a high energy density of 13.4 Wh kg^-1 at a power density of 250 W kg^-1 using 2 M KOH aqueous solution, and an ultrahigh energy density of 81.8 Wh kg^-1 at a power density of 950 W kg^-1 is realized using Et₄NBF₄/AN electrolyte.

Keywords: Cellulose aerogel; Hierarchical porous carbon; Polyaniline; Supercapacitor; ZIF-8.