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The motivation for developing nanostructured electrode materials arises from the increasing demands of energy requirements of the upcoming generation due to excessive use of fossil fuels. The latest eco-friendly energy storage devices like supercapacitors that offers significant economic and environmental advantages, which possesses prolonged lifespan and a remarkable power density. In this study, structural evolution and electrochemical performance of BiFeO 3 @g-CN electrode material is characterized. The electrochemical properties of BiFeO 3 @g-CN are determined by using different analytical tests. The specific capacitance of pure BiFeO 3 and BiFeO 3 @g-CN composite shows 557 and 1164 F/g, respectively calculating from galvanostatic charge-discharge plots. A number of factors, including the presence of several transition metal oxide, specific surface area (SSA), a nitrogen-rich structure of g-CN that allows quick ion transport which contributes to enhanced electrochemical efficiency. The material's structural stability was confirmed by its electrochemical stability after the 5000th cycle after 50 h. The BiFeO 3 @g-CN showed a lower charge transfer resistance (0.3 Ω) evaluated from electrochemical impedance spectroscopy analysis. The improvement in electrochemical properties of BiFeO 3 @g-CN electrode material indicates its potential suitability for integration into supercapacitors. The material's exceptional stability demonstrates its potential as a viable candidate for next-generation energy storage devices. [Display omitted] • BiFeO 3 @ g-CN may be used for energy storage devices. • BiFeO 3 and BiFeO 3 @g-CN nanohybrids showed specific capacitance of 557 and 1164 F/g, respectively • The charge transfer resistance is a value of 0.3 Ω. • The material's structural stability was confirmed after the 5000th cycle after 50 h. [ABSTRACT FROM AUTHOR]

The pursuit of addressing the escalating and crucial energy demands of humanity has served as an inspiration for the discovery and creation of advanced nanomaterials used to facilitate convenient and sustainable energy-storing materials and systems. A cost-effective and environmentally safe nanocomposite was synthesized through the incorporation of molybdenum oxide (MoO 3) and 2-D graphitic carbon nitride (g-CN) nanosheets by hydrothermal route. The C s of the g-CN, MoO 3 and MoO 3 /g-CN at 10 mV s−1 were measured to be 212.146, 350.49 and 693.56 F g−1 respectively, in a 2 M KOH by CV. The C s for g-CN, MoO 3 and MoO 3 /g-CN nanocomposite at 1 A g−1 were displayed as 852, 688 and 283 F g−1 by GCD. The E d of the nanocomposite was significantly elevated to 35.4 Wh kg−1 when subjected to P d of 273 W kg−1. MoO 3 /g-CN nanocomposites have advantageous characteristics for energy-storing devices due to their notable increased surface area, enhanced electric conduction, and synergistic effect of MoO 3 and g-CN. The utilization of MoO 3 /g-CN nanocomposite presents a viable and pragmatic approach to address the prevailing energy problem by serving as an effective energy storage option. [Display omitted] [ABSTRACT FROM AUTHOR]

In recent years, there has been a significant focus on variable nanostructured supercapacitors within the research community, which heightened interest that attributed to the growing demand for renewable energy resources. To resolve these issues through the advancement of electrode materials, metal chalcogenides-based rGO nanocomposite have demonstrated significant potential across various sectors, including energy storage and conversion. The presents investigation involves the synthesis of an Ag 2 Se/rGO nanosheet composite as an electrode material using a facile hydrothermal route for structural, morphological and electrochemical characterizations. However, the electrochemical findings revealed that specific capacitance (C sp) of Ag 2 Se/rGO composite was determined to 1443 F/g at 1 A/g. Additionally, energy density (E d) was 77.09 Wh/kg at power density (P d) was recorded to 310 W/kg at a 1 A/g. Moreover, obtained result suggests that there was high efficiency of ion diffusion observed when there was a low charge transfer resistance (R ct = 0.54 Ω) between Ag 2 Se and rGO. In addition, it has been observed that the columbic efficiency (η = 96 %) of the Ag 2 Se/rGO composites electrode remains high even after undergoing 5000th charging-discharging cycles. This remarkable stability demonstrates the excellent life cycle stability and low charge transfer resistance of prepared materials. The results of this study indicate that the Ag 2 Se/rGO composite electrode exhibits significant potential as an anode material which can be effectively utilized in various energy storage applications. [Display omitted] [ABSTRACT FROM AUTHOR]