Preparation of silicon oxide–carbon composite from benzene and trimethoxyphenylsilane by a liquid phase plasma method for supercapacitor applications

Facile Synthesis of Highly Porous N-Doped Carbon Nanosheets with Silica Nanoparticles for Ultrahigh Capacitance Supercapacitors

“…It is noted that even at a higher current density of 16.6 A g –1 , there is no deterioration of triangular symmetry. This indicates that the hybrid structure of SiO 2 nanoparticles embedded in carbon nanosheets improves the specific capacitance of the material with high stability Figure b,c shows GCD curves of AOC samples at low (2 A g –1 ) and high (10 A g –1 ) current density.…”

“…The specific capacitance increased in the order AOC 700 > AOC 800 > AOC 900 (Figure d), which suggests that the presence of micropores and mesopores for charge accumulation, and the large surface area benefits the ultrahigh capacitance. The hydrophilicity of silica embedded in the carbon nanosheets and oxygen functionalities improves the wettability of surface, which increases the ease of ion diffusion, thereby enhancing the electrochemical performance …”

“…This indicates that the hybrid structure of SiO 2 nanoparticles embedded in carbon nanosheets improves the specific capacitance of the material with high stability. 28 Figure 5b,c shows GCD curves of AOC samples at low (2 A g −1 ) and high (10 A g −1 ) current density. Among them, AOC 900 displays longer charge−discharge curves in comparison to other AOC samples because of its high surface area and large electrolyte ion interaction, which agrees with CV data.…”

“…The hydrophilicity of silica embedded in the carbon nanosheets and oxygen functionalities improves the wettability of surface, which increases the ease of ion diffusion, thereby enhancing the electrochemical performance. 28 The cycling stability of the electrode material is the prime key factor to assess the electrochemical performance. The stability of AOC electrodes was investigated by measuring GCD curves at 3 A g −1 for 5000 cycles in the coin cell assembly, as shown in Figure 7a.…”

Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications

“…Plasma in liquid process (PiLP) uses a plasma with electrons and active species to synthesize a range of nanoparticles and nano-metal oxide particle/carbon composites more easily and simply than conventional nanoparticle synthesis methods [25]. PiLP can produce single-component nanoparticles as well as multicomponent nanoparticles and composites in a single step process without the use of special additives [26].…”