Energy Storage Technologies; Recent Advances, Challenges, and Prospectives

Ag doped Co3O4 nanoparticles for high-performance supercapacitor application

“…Among them, the co-precipitation method is advantageous due to its fast, cost-effectiveness, and easy control during production [ 47 , 54 ]. Therefore, the properties and electrochemical performance of nanostructured materials can vary depending on experimental parameters such as synthesized method reaction time, concentration, solvent, raw materials and temperature [ 55 ]. Therefore, various researchers tried to optimize its electrochemical properties by alloying with various transition metal ions and it was found to be effective in improving supercapacitor performance [ 56 , 57 ].…”

Engineering techniques to dendrite free Zinc-based rechargeable batteries

“…Battery technology has so far been applied to stationary energy storage and power batteries. As an illustration, lithium-based batteries are typically used as the power source for electric vehicles, mobile phones, laptops, and other mobile devices ( Worku et al, 2022 ). The use of lithium-ion batteries to store renewable energy is currently receiving a lot of interest despite the fact that these batteries pose safety risks, are expensive, and have a low energy density.…”

Engineering nanostructured Ag doped α-MnO2 electrocatalyst for highly efficient rechargeable zinc-air batteries

“…Oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) performance are the main challenges in the preparation and commercialization of rechargeable ZABs [ 11 , 12 ]. Efforts in enhancing the performance of electrocatalysts for OER and ORR are limited by the poor air electrodes or bi-functional electrocatalysts, due to the short-lived cycles and sluggish kinetics [ 13 ]. Recently, various catalysts with excellent OER and ORR performance have been investigated for ZABs.…”

“…Thus, non-noble metal oxides such as MnO 2 , Co 3 O 4 , and CuO are emerging as alternative catalysts to precious metal-based materials for rechargeable ZABs [ 18 , 19 ]. From non-noble metal oxides, manganese dioxide is studied as the most potential electrocatalyst for rechargeable ZABs due to its environmental friendliness, low cost, considerable catalytic activity, abundance, and low toxicity [ 13 , 20 ]. However, MnO 2 nanomaterials suffer from low electronic conductivity and limited catalytic performance.…”

“…Hence, doping MnO 2 nanoparticles with cations such as Fe, Ag and Ni is an efficient technique to enhance its catalytic activity and electronic characteristics [ 26 , 27 ]. Reports show that Ag-based nanoparticles are a potential candidate for zinc-air battery cathode materials due to their low overpotential [ 13 ]. Moreover, the addition of Ag changes the structure and particle size of α-MnO 2 which is advantages to provide more active sites [ 10 ].…”