Synthesis and Characterization of "Ravine-Like" BCN Compounds with High Capacitance

Dongping Chen; Yanzhen Huang; Xinling Hu; Rongkai Li; Yingjiang Qian; Dongxu Li

doi:10.3390/ma11020209

Synthesis and Characterization of "Ravine-Like" BCN Compounds with High Capacitance

Materials (Basel). 2018 Jan 29;11(2):209. doi: 10.3390/ma11020209.

Authors

Dongping Chen¹, Yanzhen Huang², Xinling Hu³, Rongkai Li⁴, Yingjiang Qian⁵, Dongxu Li⁶

Affiliations

¹ College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. 1511302040@hqu.edu.cn.
² College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. 15737567342@163.com.
³ College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. 18224566342@163.com.
⁴ College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. liyungkai@yeah.net.
⁵ College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. qian1358_love@163.com.
⁶ College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China. lidongxu@hqu.edu.cn.

Abstract

A series of "ravine-like" boron carbonitrides (abbreviation: BCN) were synthesized by a green precursor pyrolysis method at different temperatures (about 700-1100 °C). The highest electrochemical performance of BCN-800 (Named BCN-temperature) electrode was observed, because the "ravine-like" structure can significantly increase the contact area and improve the wettability between electrode and electrolyte. The BCN electrode exhibited ultrahigh specific capacitance 805.9 F/g (at a current density of 0.2 A/g), excellent rate capability, and good cycling stability (91%) after 3000 cycles at a current density of 8 A/g, showing high potential applications in supercapacitors.

Keywords: boron carbonitride; electrochemical performance; pyrolysis; supercapacitors.