Syntheses and characterizations of GO/Mn3O4 nanocomposite film electrode materials for supercapacitor applications

Nwankwo, Madeleine Chinyere; Ezealigo, Blessing N.; Nwanya, Assumpta C.; Nkele, Agnes C.; Agbogu, Ada; Chime, Ugochi K.; Asogwa, P. U.; Ezekoye, B. A.; Ekwealor, A. B. C.; Osuji, R. U.; Ejikeme, Paul M.; Mâaza, M.; Ezema, Fabian I.

doi:10.1016/j.inoche.2020.107983

Cited by 14 publications

(5 citation statements)

References 34 publications

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“…Graphene oxide (GO), which is a member of the graphene family, has a lower surface area than graphene. GO is a honeycomb-structured carbon material formed by the single-layered arrangement of carbon atoms with sp 2 bonds [52]. GO demonstrates a high specific capacitance (C s ) as a result of the abundance of oxygen-functional groups on its surface.…”

Section: Metal Oxides and Conducting Polymers Are Utilized As Electro...mentioning

confidence: 99%

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: Metal Oxides and Conducting Polymers Are Utilized As Electro...mentioning

confidence: 99%

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

Sriram,

Arunpandian,

Dhanabalan

et al. 2024

Inorganics

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“…64,79 For example, a study synthesized GO/Mn 3 O 4 composite lms that could be a promising material for SCs. 80 Additionally, a nanocomposite of NiO-ZnO/GO was synthesized for applications in SC electrodes material. These studies demonstrate the potential of GO and other materials to enhance the electrochemical properties of SC electrodes and improve energy storage capacity.…”

Section: Advantages and Disadvantages Of Go In Sc Technologymentioning

confidence: 99%

Recent advances in energy storage with graphene oxide for supercapacitor technology

Mousavi,

Hashemi,

Kalashgrani

et al. 2023

Sustainable Energy Fuels

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“…They are majored into electric double layer capacitors, EDLCs and pseudocapacitors. EDLCs involves storing energy as charges get accumulated at the electrode-electrolyte interface while pseudocapacitors involve charge storage by transferring electrons via Faradaic reactions [24,25]. Their redox reactions at a given potential differentiate between the different categories.…”

Section: Introductionmentioning

confidence: 99%

Investigating the properties of co-precipitated nickel cobalt phosphate (NiCoP) nanoparticles for energy storage applications

Alshoaibi,

Nkele,

Getaneh

et al. 2024

Phys. Scr.

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Nickel cobalt phosphate (NiCoP) nanoparticles were synthesized by a co-precipitation method at concentrations of 0.1 M, 0.2 M, 0.3 M, 0.4 M, and 0.5 M. Drop-casting method was utilized in depositing the nanoparticles on the substrate surface to ensure uniform distribution on the substrate surface. Various analytical techniques including XRD, SEM, EDX, Raman spectroscopy, and electrochemical measurements were employed to comprehensively understand the structural, morphological, elemental, vibrational, and electrochemical properties of the synthesized nanoparticles. Results indicate amorphous phases for all samples, with nanoflake-like morphology observed via SEM, and constituent elements confirmed through EDX analysis. Raman spectroscopy validates the composition, while electrochemical measurements demonstrate the NiCoP electrodes’ promising utility in energy storage, particularly with the 0.1 M electrode exhibiting a maximum specific capacitance of 91.2 F g−1 and stability over 3000 cycles. Overall, the findings highlight the potential applications of NiCoP nanoparticles in energy storage and electrochemical devices, providing valuable insights for researchers in the field.

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Syntheses and characterizations of GO/Mn3O4 nanocomposite film electrode materials for supercapacitor applications

Cited by 14 publications

References 34 publications

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

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

Recent advances in energy storage with graphene oxide for supercapacitor technology

Investigating the properties of co-precipitated nickel cobalt phosphate (NiCoP) nanoparticles for energy storage applications

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