Synthesis of porous carbon material based on biomass derived from hibiscus sabdariffa fruits as active electrodes for high-performance symmetric supercapacitors

Abstract

Carbon-based materials are manufactured as high-performance electrodes using biomass waste in the renewable energy storage field.

Facile fabrication of carbon microtube arrays from waste wood for use as self-supporting supercapacitor electrodes

“…In addition, the electrochemical performance of M-CMA-800 also surpasses those of previously reported waste-derived carbon electrode materials (Fig. 7e) such as Hibiscus fruits (195 F g À1 , 0.5 A g À1 ), 36 nettle leaves (163 F g À1 , 0.5 A g À1 ), 37 waste PET beverage bottles (169 F g À1 , 0.2 A g À1 ) 38 , wheat starch (141 F g À1 , 0.5 A g À1 ), 39 peanut shell (186 F g À1 , 0.5 A g À1 ) 40 and Tremella (71 F g À1 , 1 A g À1 ). 41 Based on the GCD plots, the energy density and power density were calculated using the following equations:…”

Preparation of High-Performance Enteromorpha Prolifera–Based Porous Carbons by Nitrogen Modification and Their Electrochemical Performance

“…When P/P 0 < 0.4, the trends of these three curves demonstrate that adsorption and filling occur in micropores (Yuan et al, 2021). And when P/P 0 > 0.4, the hysteresis loops on these curves demonstrate that capillary condensations occur in mesopores (Hamouda et al, 2021). Hence, all these PCs contain micropores and mesopores.…”

Low content Ru-incorporated Pd nanowires for bifunctional electrocatalysis

“…The mesopores can act as a buffer to store the solution and promote fast mass transport within the porous materials by minimizing diffusion distances. 62,63 The S BET , pore volume, and pore size of the supported nPd catalyst were 17.782 m 2 g À1 , 0.069645 cm 3 g À1 , and 12.3 nm, respectively, and those of the nRuPd catalyst were 30.341 m 2 g À1 , 0.091713 cm 3 g À1 , and 9.4 nm, respectively. These values suggest that the addition of Ru increased the specic surface area and pore volume, which likely enhanced the catalytic performance.…”