Tungsten disulfide nanoparticles embedded in gelatin-derived honeycomb-like nitrogen-doped carbon networks with reinforced electrochemical pseudocapacitance performance

Biopolymers-Derived Materials for Supercapacitors: Recent Trends, Challenges, and Future Prospects

“…Gelatin is an alternative biopolymer that is frequently used in the development of supercapacitors’ electrodes, due to its unique biological, gelling, interfacial, and viscoelastic characteristics, and is also used in the energy storage and conversion sectors [ 1 , 24 , 70 ]. Based on these characteristics, Sun et al [ 9 ] prepared a nanocomposite electrode synthesized by embedding tungsten disulfide (WS 2 ) nanoparticles in gelatin-derived hierarchical porous carbon. Honeycomb-like porous nanostructures were formed after washing out the salt.…”

“…Except for ruthenium oxide, PCs devices have low power densities due to their greater equivalent series resistance; however, their high cost makes them economically unsuitable for practical applications. Materials such as conducting polymers (polyaniline, polythiophene derivatives, and polypyrrole) and transition metal oxides (cobalt oxide, manganese oxide, nickel oxide, and iron oxide) have been used as supercapacitor electrodes [ 8 , 9 ]. Some of them have shown promising possibilities, which require further study.…”