Supercapacitor electrodes using nanoscale activated carbon from graphite by ball milling

Supercapacitors specialities - Materials review

“…In [23] an electrode containing 90 % carbon black and 10 % PTFE was prepared by pressing a paste on to Ni foil as collector, with a pressure of 4 . 10 7 Pa. SEM images taken at the surface of electrode indicate that the size of most of carbon particles is lower than 100 nm as in the case of reference [21]. Electrochemical characterization of the carbon black based electrode shows a specific capacitance of 33.58 F/g at 10 mV/s scan rate in 2 M KCl electrolyte.…”

“…A very high value of specific capacitance of 1071 F/g is reported in [21] for activated carbon obtained from graphite by ball milling. After ball milling of the graphite material, carbon particles with a size lower than 100 nm were obtained.…”

Synthesis of molybdenum disulfide/carbon aerogel composites for supercapacitors electrode material application

“…So looking for high-performance electrode materials with large surface area has become a pivotal issue for the EDLC development. The materials mostly used as EDLC are based on carbonaceous materials such as activated carbon [10], 4 template carbons [11], graphene [12], carbon aerogel [13] and carbon nanotubes [14] which have a large surface area for the charge to reside.…”

2 D amorphous frameworks of NiMoO4 for supercapacitors: defining the role of surface and bulk controlled diffusion processes

“…It has been shown that coupling supercapacitors to batteries can be advantageous in situations where prolonged power demands are needed to be met [4][5][6]. Thus efforts have been focussed on developing new supercapacitor electrode materials which can deliver high power over a prolonged period of time [6][7][8]. It has been shown that binary metal oxide systems like MnMoO 4 and CoMoO 4 nanostructures possess multiple oxidation states that enable rich redox reactions and show high specific capacitances [9].…”