1. Recent trends in nanomaterials for sustainable energy -- 2. Recent In-situ/Operando Characterization of Lithium Sulfur Batteries -- 3. Recent Advances in Flexible Supercapacitors -- 4. Noble-Metal Free Nanoelectrocatalysts for Hydrogen Evolution Reaction -- 5. Energy saving synthesis of Mg2SiO4:RE3+ nanophosphors for solid-state lighting applications -- 6. Studies of multi-walled carbon nano…