Three-dimensional honeycomb-like hierarchically structured carbon nanosheets from resin for high-performance supercapacitors

Abstract

In this work, three-dimensional interconnected honeycomb-like carbon nanosheets were successfully prepared and employed as electrode materials for high performance supercapacitors.

Effects of Potassium-Based Activating Agents on the Biochar Derived from Coconut Tree Husk for Enhancing the Surface Area and Supercapacitor Performance

“…According to Dunn’s method, the surface-controlled current ( i s ) and diffusion controlled current ( i d ) can be expressed by the terms k 1 ν and k 2 ν 0.5 , respectively. k 1 and k 2 represent the surface- and diffusion-controlled constants, respectively. , The values of constants k 1 and k 2 can be determined from the plot of i ( ν ) ν 0.5 (along the y axis) versus ν 0.5 (along the x axis) by determining the slope and intercept, respectively Figure e shows the deconvoluted CV curve for the AC3 electrode at the scan rate of 10 mV s –1 .…”

“…k 1 and k 2 represent the surface-and diffusion-controlled constants, respectively. 45,46 The values of constants k 1 and k 2 can be determined from the plot of i( ) 0.5 (along the y axis) versus ν 0.5 (along the x axis) by determining the slope and intercept, respectively. 47 Figure 5e shows the deconvoluted CV curve for the AC3 electrode at the scan rate of 10 mV s −1 .…”