Abstract
NiO nanoparticles with an average size of 15 nm were prepared by a simple, reproducible and low-cost controlled method, using nickel nitrate hexahydrate (Ni(NO 3 ) 2 ⋅6H 2 O). These nanoparticles were added to an agar- based polymer electrolyte formula, resulting, after reflux and solution casting, in a proton conducting membrane. The highest ionic conductivity values of 5.19×10 -5 S cm -1 at room temperature and 3.32x10 -4 S cm -1 at 80 °C, were obtained for the sample with 50 wt. % of acetic acid and 0.25 g of NiO. Moreover, the samples showed 75 % of transparency in the visible region, a homogeneous surface and mainly amorphous structure. All the obtained results suggest that agar- based polymer electrolyte with NiO nanoparticles are promising candidates for electrochemical devices application.
Highlights
The accelerated population growth, environmental agar[17,18,19] were proposed
A. et al - Influence of the NiO nanoparticles on the ionic conductivity of the agar-based electrolyte surface morphology of the films was obtained by SEM; the structure was examined by X-ray diffraction measurements and the transmittance was measured by UV–Vis spectroscopy
The ionic conductivity is b deduced from the Rb values by employing the formula σ l/R A, b where l is the thickness of the electrolyte sample and A is the contact area between the electrolyte and the electrode
Summary
The accelerated population growth, environmental agar[17,18,19] were proposed. The analyzed samples pollution and energy critical global issues lead to revealed that to the poly(ethylene oxide)development and application of renewable and based electrolytes[20,21,22], the charge carries can be either environmentally friendly energy materials. All the obtained results suggest that agarbased polymer electrolyte with NiO nanoparticles are promising candidates for electrochemical devices application.
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