Green Synthesis of Boron Carbonitride with High Capacitance

Abstract

Boron carbonitrides (BCN) have attracted great interest in superhard or energy storage materials. In this work, thin BCN sheets were synthesized at 250 °C by a facile and green solvothermal method. The structure and morphology were characterized by X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Based on the results of electrochemical experiments, the thin BCN sheet exhibited excellent capacitance performance (343.1 F/g at a current density of 0.5 A/g) and cycling stability (90%), which showed high potential applications in supercapacitors.

Boron carbon nitride (BCN): an emerging two-dimensional nanomaterial for supercapacitors

“…Solvothermal method with sonication is an effective procedure for the development of BCN with extraordinary physical and chemical properties. Chen et al 42 prepared BCN nanosheets using boric acid and 2,4,6-tri(2-pyridyl)-1,3,5-triazine dissolved in ethylene glycol as the solvent and subjected it to ultrasonic treatment for a period of 10 min. The as-prepared yellow color solution was transferred to a hydrothermal reactor thereafter and further heated at a temperature of 250 °C for 24 h. After natural cooling, the black and viscous liquid formed was collected and heated at 400 °C for 2 h under N 2 atmosphere.…”

Borocarbonitride‐Based Emerging Materials for Supercapacitor Applications: Recent Advances, Challenges, and Future Perspectives

“…The charge/discharge test was repeated for 3000 cycles at a current density of 15 A g −1 to test the cycling life of the BCN electrode, and it showed a high capacitance retention of nearly 97.7%. [ 141 ] Similar studies done by Chen and group BCN were prepared at a temperature of 800 °C. The specific capacitance (475 F g −1 ) and best cycle stability (97.7%) over 3000 cycles were demonstrated by this pristine BCN.…”

In‐Situ Synergistic 2D/2D MXene/BCN Heterostructure for Superlative Energy Density Supercapacitor with Super‐Long Life

“…The deconvoluted peaks with binding energy centered at 456.3, 457.2, 461.3, and 462.7 eV corresponds to Ti (II) 2p 3/2 , Ti (III) 2p 3/2 , Ti (II) 2p 1/2 , and Ti (III) 2p 1/2 , respectively. [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37] Further, two deconvoluted peaks located at 454.3 and 460 eV is assigned to TiC 2p 3/2 and TiF. [38,39] Moreover, TiO component is detected for the peak corresponding to the binding energy of 457.9 eV.…”

“…[20,21] Consequently, boron carbon nitride (BCN) [22,23] is highly attracting research attention owing to their high surface activity, and electrochemical properties for electrode materials in supercapacitors. [24,25] Even though, early BCN structures reported considerably lower capacitance, [26,27] recent optimization in the condition and enhanced techniques have allowed to express improved results. [28][29][30] Exploiting the 2D structure and high charge storage, BCN composites have been reported including polyaniline wrapped and supported BCN yielding 951 F g −1 at 2 mV s −1 [31] for graphene and MoS 2 covalently cross-linked BCN nanostructures.…”