Energy is essential for the economic growth of any country. There is a strong demand for the development of materials that can show potential towards higher power density and energy density. In this article, a promising class of polymeric materials, hydrogels have been discussed as an energy storage material. The hydrogels are advantageous as they possess in them the unique combination of organic conductors and conventional polymers. The article covers the synthetic approach of hydrogels which includes both the conventional synthesis and the new routes adopted followed by the application of hydrogels as energy storage materials. Finally, the future opportunities and prospects in the development of hydrogels as advanced energy storage materials are highlighted.[a] Dr.

A facile protocol for the synthesis of 2-arylimidazo[1,2-a]pyridines was developed using two-component cyclization of substituted 2-aminopyridines and substituted phenacyl bromides in 65–94% yield. The reaction was DBU catalysed using green solvent, aqueous ethanol (1 : 1 v/v) at room temperature. The atom economy of the products was calculated to be 66.25–73.41%. The developed protocol successfully exhibits a broad substrate scope, less reaction time, high to moderate yield and multigram scale synthesis.

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: A green and efficient method for the synthesis of 2-arylimidazo[1,2-a]pyridine (3) and benzimidazole (8) derivatives has been developed using plant extracts. The different plant part extracts of Terminalia chebula, Punica granatum, and Aegle marmelos have been studied. The aqueous fruit extract of Terminalia chebula gave better results. The synthetic method has been optimized with respect to plant extract quantity, pH of the reaction, and yield. The developed protocol showed several advantages like mild reaction conditions, short reaction time, high yield, and reduced environmental impact.