Influence of oxidation level on capacitance of electrochemical capacitors fabricated with carbon nanotube/carbon paper composites

High-Performance Supercapacitor of Functionalized Carbon Fiber Paper with High Surface Ionic and Bulk Electronic Conductivity: Effect of Organic Functional Groups

“…The contact angles of a water droplet on the surfaces of CFP, f-CFP, f-CFP (EDA), and f-CFP(BTM) are 130 , 65 , 80 , and 105 , respectively. This result showed that the hydrophobicity of the bare CFP can be changed to hydrophilicity by functionalizing the organic functional groups, especially hydroxyl and carboxylic groups [16]. These functional groups could lead to higher ionic conductivity when compared with the bare CFP.…”

“…In addition, the functional groups on the f-CFP surface can also improve the wettability of the electrode [5,16]. From Fig.…”

Solvothermal synthesis of Zinc sulfide decorated Graphene (ZnS/G) nanocomposites for novel Supercapacitor electrodes

“…The presence of oxygen functional groups is confirmed from XPS and FTIR measurements, which enhanced the accessibility to hydrophilic surface in aqueous electrolytes. These oxygen functional groups interacted with metal ions in the electrolyte [41] and contributed towards the pseudocapacitance. In KOH medium, the redox reaction of oxygen functional groups of graphene such as carbonyl, carboxyl and hydroxyl can be expressed as follows [42][43],…”

Self-grown MnO 2 nanosheets on carbon fiber paper as high-performance supercapacitors electrodes

“…The hybrid supercapacitors comprising both MnO 2 and carbon materials have been extensively studied, since the high specific surface areas and high conductivity of carbon materials [15][16][17][18][19][20][21][22][23]. These electrodes rendered a specific capacitance from $133 to $1270.5 F/g.…”