Manganese Oxide Carbon-Based Nanocomposite in Energy Storage Applications

Abstract

Global increasing demand in the need of energy leads to the development of non-conventional, high power energy sources. Supercapacitors (SCs) are one of the typical non-conventional energy storage devices which are based on the principle of electrochemical energy conversion. SCs are promising energy storage devices for better future energy technology. Increasing progress has been made in the development of applied and fundamental aspects of SCs. Manganese oxide electrode materials have been well studied; however, their capacitive performance is still inadequate for practical applications. Recent research is mainly focused on enhancing manganese oxide capacitive performance through the incorporation of electrically conductive materials and by controlling its morphology to reveal a more active surface area for redox reactions. In this review, progress in the applications of manganese oxide carbon-based materials towards the development of highly effective SCs is briefly discussed. In this regard, manganese oxide carbon-based nanocomposites synthesis methods and techniques used to approximate the capacitance of electrode materials are discussed.

Recent Advancements in Electrochemical Deposition of Metal‐Based Electrode Materials for Electrochemical Supercapacitors

“… Ragone plots represent energy storage devices of capacitors, batteries, and supercapacitors. Reproduced with permission [25] . Reproduced under the terms of the CC BY 4.0 license.…”

Potential of MnO2‐based composite and numerous morphological for enhancing supercapacitors performance

“…65 On the other hand, relatively inexpensive, eco-friendly, and with extremely high theoretical specific capacitance (1.370 F/g), MnO 2 is regarded as a prospective supercapacitor electrode material. [66][67][68][69] Furthermore, these materials have remarkable electrochemical properties. Therefore, MnO 2 electrodes in neutral aqueous electrolytes can have a significant potential window.…”

“…The main disadvantage of ruthenium oxide materials is their behavior for agglomeration, which has a detrimental effect on electrochemical performance 65 . On the other hand, relatively inexpensive, eco‐friendly, and with extremely high theoretical specific capacitance (1.370 F/g), MnO 2 is regarded as a prospective supercapacitor electrode material 66–69 . Furthermore, these materials have remarkable electrochemical properties.…”

Hydrothermal synthesis of an SnO2–rGO nanocomposite using tea extract as a reducing agent for daylight-driven photocatalyst and supercapacitors

“…In supercapacitors, the electrode materials are mostly prepared by the combination of metal oxidecarbon-based materials, which increase the capacitive, stability, and energy density of the electrode material without sacrificing the rate capability and power density. [39][40][41] The main advantage of using carbon-based materials is to prevent pulverization and volume expansion of the electrode material during the chargedischarge process. Composites of SnO 2 /rGO are used as photocatalysts for the degradation of organic contaminants under visible light and are highly capacitive stable electrode materials with long-term stability.…”