Influence of the NiO nanoparticles on the ionic conductivity of the agar-based electrolyte

Polímeros

José Bernedo Alcázar¹  Neftalí Lenin Villarreal Carreño¹  Dalal Jaber Suliman Abdullah Audeh¹  Carlos Veiga Barbosa¹  César Antonio Oropesa Avellaneda¹  Ellen Raphael²  Agnieszka Pawlicka³ 

[1] Universidade Federal de Pelotas;Universidade Federal de São João del-Rei;Universidade de São Paulo;

关键词: Polymer electrolyte;    ionic conductivity;    agar;    NiO nanoparticles;   

DOI  :  10.4322/polimeros.2014.055

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown