Electrical properties of proton conducting solid biopolymer electrolytes based on starch–chitosan blend

Hydrogen ion conducting starch-chitosan blend based electrolyte for application in electrochemical devices

“…The authors reported that the conductivity of polyethylene oxide (PEO)-ammonium perchlorate (NH 4 ClO 4 ) electrolyte is enhanced to $10 À4 S cm À1 when plasticized with propylene carbonate (PC), in order to use the electrolyte in proton battery. From our previous work [19], starch-chitosan-NH 4 Cl plasticized with 35 wt.% glycerol (P7 electrolyte) obtained the highest room temperature conductivity value of (5.11 AE1.60) Â 10 À4 S cm À1 , which is suitable for battery application.…”

“…This XRD result has given some answers for the increasing conductivity with increasing NH 4 Cl content up to 25 wt.%. The room temperature conductivity decreases with addition of more than 25 wt.% NH 4 Cl [19]. In the XRD pattern of S7 electrolyte, the intensity of the crystalline peak at 2u = 22.9 increases and another two crystalline peaks appear at 2u = 32.6 and 58.3 .…”

“…The incorporation of salt to the polymer host is expected to increase the amorphousness of the electrolyte. From our previous report [19], the room temperature conductivity of electrolyte was optimized with addition of 25 wt.% NH 4 Cl, i.e. S5 electrolyte.…”

“…However, activated carbon is preferred due to its outstanding properties such as high surface area, low cost, high conductivity and good chemical stability [26]. Our previous workt focused on the electrical charactheristics of the electrolytes [19]. In this work, further characterizations are reported and the highest conducting electroyte is used in the fabrication of proton batteries and an EDLC.…”

Conductivity studies of graphene oxide on biopolymer electrolyte

“…Studies on the dielectric behavior give an important understanding about the trend of ionic conductivity in electrolyte system. Dielectric constant is a measurement of charge stored in a material and dielectric loss indicates the energy losses due to movement of ions when the polarity of electric field reverses rapidly (Shukur et al, 2014). Dielectric studies were done using equation (2) (2)…”