Synergistic optimization of nanostructured graphene oxide based ternary composite for boosting the performance of supercapacitor electrode material via response surface methodology

Verma, Sanjeev; Verma, Bhawna

doi:10.1016/j.colsurfa.2023.132893

Cited by 2 publications

(3 citation statements)

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“…Accordingly, it kept its capacitance well (89.3% after 10,000 cycles) at a CD of 10 A g −1 . Another study found that the best GO/CNT/COF weight ratio (2.4: 2.1: 1.0) had a higher C s of 544.91 F g −1 at 1 mV s −1 and 175.09 F g −1 at 1 A g −1 [97]. Due to their porous structure, high electrolyte ion adsorption could be attributed to the high C s achievement, which may account for the CNT and GO materials' high specific surface area, while the COF contributes to their high redox activity.…”

Section: Go-metal Oxidesmentioning

confidence: 98%

“…Carbon-based materials (GO or CNT) typically have problems with self-aggregation, which results in poor electrochemical performances [97]. Consequently, using carbon-based materials that can be composited with metal oxides has improved supercapacitor performance.…”

Section: Go-metal Oxidesmentioning

confidence: 99%

“…Consequently, because of its exceptional electrochemical reversibility, high conductivity, capacitance value, and cycle efficacy, cobalt ferrite (CoFe 2 O 4 ) is primarily used in supercapacitors. To enhance the electrochemical performance in supercapacitor applications, Verma et al investigated a composite CoFe 2 O 4 with GO/CNT (GO/CNT/CoFe 2 O 4 ) [97]. Initially, Hummer's technique was adapted to synthesize GO for this procedure.…”

Section: Go-metal Oxidesmentioning

confidence: 99%

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Recent Progress Using Graphene Oxide and Its Composites for Supercapacitor Applications: A Review

Sriram,

Arunpandian,

Dhanabalan

et al. 2024

Inorganics

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Supercapacitors are prospective energy storage devices for electronic devices due to their high power density, rapid charging and discharging, and extended cycle life. Materials with limited conductivity could have low charge-transfer ions, low rate capability, and low cycle stability, resulting in poor electrochemical performance. Enhancement of the device’s functionality can be achieved by controlling and designing the electrode materials. Graphene oxide (GO) has emerged as a promising material for the fabrication of supercapacitor devices on account of its remarkable physiochemical characteristics. The mechanical strength, surface area, and conductivity of GO are all quite excellent. These characteristics make it a promising material for use as electrodes, as they allow for the rapid storage and release of charges. To enhance the overall electrochemical performance, including conductivity, specific capacitance (Cs), cyclic stability, and capacitance retention, researchers concentrated their efforts on composite materials containing GO. Therefore, this review discusses the structural, morphological, and surface area characteristics of GO in composites with metal oxides, metal sulfides, metal chalcogenides, layered double hydroxides, metal–organic frameworks, and MXene for supercapacitor application. Furthermore, the organic and bacterial functionalization of GO is discussed. The electrochemical properties of GO and its composite structures are discussed according to the performance of three- and two-electrode systems. Finally, this review compares the performance of several composite types of GO to identify which is ideal. The development of these composite devices holds potential for use in energy storage applications. Because GO-modified materials embrace both electric double-layer capacitive and pseudocapacitive mechanisms, they often perform better than pristine by offering increased surface area, conductivity, and high rate capability. Additionally, the density functional theory (DFT) of GO-based electrode materials with geometrical structures and their characteristics for supercapacitors are addressed.

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Section: Go-metal Oxidesmentioning

confidence: 98%

Section: Go-metal Oxidesmentioning

confidence: 99%

Section: Go-metal Oxidesmentioning

confidence: 99%

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