In this article we discuses about the supercapacitors. So supercapacitor is nothing, but it is a one kind of energy storage systems.
So, how we have come into that concept of supercapacitor,
Basically, the rapid increase in the global energy consumption and the environment impact of traditional energy resources has led to tremendously increased research activities and clean and renewable energy sources during the last decade.
Yes, because till now we are working on the batteries, but the batteries is problem that sometimes during the chemical reactions, it can generate some kind of toxic gases, it can corrode , the cathode and anode and also it does not have that longer life. May be if we use the solid materials for the batteries sometimes, it is maybe one-time use sometimes, we can recharge the battery, but that is also having some limitations.
In this article we are talking about metal oxide super-capacitor, these types of super-capacitors are pseudo-capacitors.
Metal oxide super-capacitor
Those crystalline solids that contain a cation and an oxide anion of metal. They regularly respond with water or with acid to make bases or salts.
(MOF) Metal-organic framework-based semiconductor composites improve the synergistic physical as well as chemical properties of perfect semi-conducting materials.
Among the various nanomaterials utilized for supercapacitors, metal oxides have accumulated significant consideration due to their chemical and physical and properties. Compared with metal oxides, metal chalcogenides are simple to plan, chemically steady, nature saving, and compatible with a wide assortment of electrolytes, which are crucial to fulfil tough and cost- effective supercapacitor devices. Also, metal oxides show higher hypothetical specific capacitance, higher vitality thickness, and superior electrochemical execution compared to graphene or other 2D materials due to the combined impact of the tall cathode surface area and different oxidation states.
Materials.
The iron-based metal-organic frameworks (MOF) powders, used in this study, is known as Fe-BTC (Basolite® F300), purchased from Sigma-Aldrich (molecular weight: 262.96, BET surface area: 1300-1600 m2/g, bulk density: 0.16‑0.35 g/cm3).
All the electrochemical studies were carried out using a Biologic potentiostat, SP-200 (Bio-Logic Science Instruments Ltd, UK).
A typical three electrode system was used with the Fe-MOF (or FeOx) casted GCE used as a working electrode. A platinum wire (99.95% purity, BASi) and Ag/AgCl (3M KCl, BASi) were used as counter (CE) and reference electrodes (RE), respectively.
Here I have plotting graph between potential and time as derived data from experiments.
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