3-D ZnFe₂O₄/FSSM-300 nano-flakes on flexible stainless steel mesh as anode and Ni(OH)₂/FSSM-300 as cathode was used to fabricate an asymmetric supercapacitor.

Using a novel, cost-effective and environmentally friendly biosynthesis method, Ni-doped SnO₂ nanoparticles have been synthesized. Gas sensing results suggest that the Ni-dopant is a promising additive to fabricate low cost SnO₂ based sensors.

Contact angle measurements (surface wettability) of the electrolytes (1 M KOH, NaOH and LiOH) and their combination (1 M 1 : 1 v/v LiOH + KOH, NaOH + KOH and LiOH + NaOH) in contact with ZnFe₂O₄ nano-flake based electrodes is used as an empirical diagnostic tool to pre-evaluate the performance of a supercapacitor prior to actual fabrication of the device.