Effect of Anion Size on the Conductivity Behaviour of Hexanoyl Chitosan-Based Polymer Electrolytes Academic Article uri icon

abstract

  • Films of hexanoyl chitosan containing lithium perchlorate (LiClO4) or lithium triflouromethanesulfonate (LiCF3SO3) were prepared by solution casting technique. The effect of anion size on the conductivity behaviour of hexanoyl chitosan has been investigated. The conductivity of 4.15 × 10-7S/cm and 4.07 × 10-6S/cm were achieved for the hexanoyl chitosan-LiClO4and hexanoyl chitosan-LiCF3SO3electrolyte system at 50wt.% of salt concentration, respectively. The Rice and Roth model was used to analysis quantitatively the obtained conductivity trends for the prepared electrolyte systems. The diffusion coefficients of cations and anions were calculated from the conductivity and transference number measurements. This is followed by the discussion on the diffusion coefficients of ClO4-and CF3SO3-anion.

publication date

  • 2012

number of pages

  • 3

start page

  • 317

end page

  • 320

volume

  • 545