Novel green synthesis of graphene oxide-manganese dioxide using solution plasma process for energy storage

The application of plasma technology for the preparation of supercapacitor electrode materials

“…Composites of carbon nanomaterials, especially graphene materials and transition metal oxides, have become a hot topic in research due to the use of graphene materials with large specific surface area, high conductivity, long cycle life, and high specific capacitance and transition metal oxides having high energy density for the preparation of composite electrode materials to improve the performance of supercapacitors. 26,28,133,134 Pimklang et al 135 prepared GO-MnO 2 composites using a solution plasma process, and the resulting material produced a specific capacitance of 218 F g −1 at 5 mV s −1 in a relatively short time. Dao et al 136 used dry plasma reduction (DPR) to hybridize NiO-NPs on the surface of rGO, and at the same time reduced Ni precursor ions and GO to Ni atoms and RGO, respectively, through DPR.…”

Submerged Discharges in Liquids for Nanoobject Synthesis: Expectations and Capabilities

“…For instance, it is relatively simple to produce platinum nanoparticles with diameters around or even below 5 nm [46,47,59,122]. In contrast, manganese oxide nanoparticles are generally larger (between 20 and 100 nm typically) [9,60,91,94]. While recipes are available, no model can predict how to set parameters to achieve the desired range of sizes.…”

“…The specific area of the nanospheres was ~48 m 2 g −1 , which is probably smaller than that of Mn3O4 nanosheets. Pimklang et al [60] elaborated a graphene oxide-MnO2 nanocomposite and measured a specific capacitance of 218 F g −1 within an aqueous environment. The composite exhibited a capacity retention of 85% after 1000 cycles.…”

Integrated Microsystem Toward High‐Throughput Automated Green Synthesis and Raman Enhancement Performance Screening of Noble‐Metal@Cu‐MOF

“…"Green Synthesis" which derives from "Green Chemistry" and "Clean Production" lately received extensive attention. [1] Several green synthetic routes have been widely applied in drug synthesis [2,3] and diverse nanomaterials preparation (e.g., covalent-organic frameworks, [4][5][6] metal-organic frameworks, [7][8][9] 2D materials [10][11][12] and others. [13][14][15][16] ).…”