Superior capacitive performance of active carbons derived from Enteromorpha prolifera

Activated porous carbon prepared from paulownia flower for high performance supercapacitor electrodes

“…(1), showing a 65.3% capacitance retention within 0.5$10 A g À1 , which manifests the good rate capability of the device. The specific capacitance of our capacitor is superior over or comparable to the recently reported biomass derived supercapacitors [17,21,23,25,33,36,39,40]. The lowered capacitance at higher current densities is also attributed to the insufficient electrolyte ions diffusion kinetics across the micropores owing to the narrow pore size at higher operating current densities, the reduced accumulation amount of electrolyte ions onto porous electrode interface results in the decrement in specific capacitance.…”

Preparation and evaluation of adsorptive properties of micro-mesoporous activated carbon via sodium aluminate activation

“…Meanwhile, the desorption isotherm exhibited an obvious deviation from the adsorption isotherm, demonstrating the presence of bottle neck-type or slit-type mesopores. Table 1 summarizes the specific surface area and pore structure of E. prolifera based activated carbons from different activating agents [33,36,37]. It could be found that, the activated carbon prepared in this work displayed relatively a high specific surface area of 1374.3 m 2 g À1 , which was higher than that of other activated carbons prepared by H 3 PO 4 and ZnCl 2 activation and slight lower than that of activated carbon prepared by KOH activation.…”

High-Performance Supercapacitor Based on the NaOH Activated D-Glucose Derived Carbon

“…1). Compared with the XRD pattern of the original CSs, besides the decreased intensity and shifted position of broad (002) diffraction peaks, [23][24][25] no other signi¯cant changes can be observed in both the XRD patterns of the 600 C and 700 C-activated CSs. However, when the activation temperature rises to 800 C or 900 C, a strong graphite (002) di®raction peak at 2 % 26 is detected, indicating the existence of graphite structures in these two activated samples, especially for the 900 C-activated CSs, the XRD pattern shows that the structure of it is mainly composed by graphite.…”