Design of Boron Carbonitrides-Polyaniline (BCN-PANI) assembled supercapacitor with high voltage window

Dong Shi; Mingzhi Yang; Baoguo Zhang; Haixiao Hu; Zizheng Ai; Yongliang Shao; Jianxing Shen; Yongzhong Wu; Xiaopeng Hao

doi:10.1016/j.jcis.2022.06.133

Design of Boron Carbonitrides-Polyaniline (BCN-PANI) assembled supercapacitor with high voltage window

J Colloid Interface Sci. 2022 Nov 15:626:544-553. doi: 10.1016/j.jcis.2022.06.133. Epub 2022 Jun 28.

Authors

Dong Shi¹, Mingzhi Yang¹, Baoguo Zhang¹, Haixiao Hu¹, Zizheng Ai¹, Yongliang Shao¹, Jianxing Shen¹, Yongzhong Wu², Xiaopeng Hao³

Affiliations

¹ Department of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China.
² Department of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China. Electronic address: wuyz@sdu.edu.cn.
³ Department of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Science), Jinan 250353, PR China. Electronic address: xphao@sdu.edu.cn.

PMID: 35809443
DOI: 10.1016/j.jcis.2022.06.133

Abstract

Boron carbonitrides (BCN) have been widely concerned in the field of energy storage and conversion. However, the energy storage mechanism of electrical double-layer behavior and their stacked-layer structure severely limit the improvement of capacitance, thereby hindering their further development in energy storage. Therefore, an ultrasonic-ball milling method was first chosen to obtain BCN nanosheets, together with a feasible way of polyaniline (PANI) modification performed to boost the capacitive reaction of BCN nanosheets. For the first time, a BCN-PANI-based symmetric supercapacitor device can reach a high voltage window of 3.0 V when 1 M Et₄N·BF₄ was chosen as the electrolyte. The working voltage of 3.0 V is three times that of a device with pure PANI with the ultrahigh energy density of 67.1 W h kg^-1, superior to most of the reported PANI-based devices. The eminent electrochemical performance provides a promising strategy to pave the way for configuring carbon-based multiple composite electrodes for other energy storage devices.

Keywords: Boron carbonitrides; Exfoliation method; High voltage window; Polyaniline modification; Supercapacitor.