Influence of the NiO nanoparticles on the ionic conductivity of the agar-based electrolyte
AUTOR(ES)
Audeh, Dalal Jaber Suliman Abdullah, Alcázar, José Bernedo, Barbosa, Carlos Veiga, Carreño, Neftalí Lenin Villarreal, Avellaneda, César Antonio Oropesa, Pawlicka, Agnieszka, Raphael, Ellen
FONTE
Polímeros
DATA DE PUBLICAÇÃO
18/04/2014
RESUMO
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(NO3)2·6H2O). 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 5.19x10-5 S cm-1 at room temperature and 3.32x10-4 S cm-1 at 80 ºC, 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.
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