Abstract:Abstract. Electrochemical, optical and thermal characterisation of a proton conducting polymer system based on poly(2-acrylamido-2 methyl-propane-sulfonic acid) (Poly-AMPS) for use in electrochromic windows .is reported. The polymer electrolyte has been obtained by cross-linking branched poly(ethylene imine) with the 2-acrylamido-2 methyl-propane-sulfonic acid.The conductivity of the poly-AMPS films is influenced by the water content in the membrane and can vary between 10 .4 and 10 -7 f2 -~ cm -~. A minimum a… Show more
“…From the slope of the linear fit for the bulk contribution the activation energy of this PAni/HCF hybrid material is calculated, obtaining a value of 15.5 ± 0.6 kJ/mol (0.16 eV). This value is similar to the ones reported for other conducting polymers. − 4 Arrhenius plot of the total (○) and intragrain (·) conductivity of PAni/HCF hybrid obtained by ac impedance measurements. 5 Charge−discharge cycle (10th) at a discharge rate of C/15 of a reversible lithium cell with PAni/HCF as active cathode material. Anode: lithium metal.…”
The hybrid organic−inorganic material formed by polyaniline and the hexacyanoferrate
anion (PAni/HCF) constitutes a molecular hybrid where the anchoring of the electroactive
anion within the polymer leads to its application as a functional material that harnesses
the activity of the molecular species. Transport measurements of the hybrid have been carried
out, both by cyclic voltammetry at different scan rates and ac impedance spectroscopy. An
apparent diffusion coefficient of 5 × 10-8 cm2/s and an activation energy of 15.5 kJ/mol (0.16
eV) have been obtained. The particular application of these hybrids to energy storage is
shown here through their use as cathodes in lithium rechargeable cells. In this respect, the
PAni/HCF hybrids show very good cyclabilities and high specific charges of up to 140 A·h/kg, unprecedented for this type of hybrid materials.
“…From the slope of the linear fit for the bulk contribution the activation energy of this PAni/HCF hybrid material is calculated, obtaining a value of 15.5 ± 0.6 kJ/mol (0.16 eV). This value is similar to the ones reported for other conducting polymers. − 4 Arrhenius plot of the total (○) and intragrain (·) conductivity of PAni/HCF hybrid obtained by ac impedance measurements. 5 Charge−discharge cycle (10th) at a discharge rate of C/15 of a reversible lithium cell with PAni/HCF as active cathode material. Anode: lithium metal.…”
The hybrid organic−inorganic material formed by polyaniline and the hexacyanoferrate
anion (PAni/HCF) constitutes a molecular hybrid where the anchoring of the electroactive
anion within the polymer leads to its application as a functional material that harnesses
the activity of the molecular species. Transport measurements of the hybrid have been carried
out, both by cyclic voltammetry at different scan rates and ac impedance spectroscopy. An
apparent diffusion coefficient of 5 × 10-8 cm2/s and an activation energy of 15.5 kJ/mol (0.16
eV) have been obtained. The particular application of these hybrids to energy storage is
shown here through their use as cathodes in lithium rechargeable cells. In this respect, the
PAni/HCF hybrids show very good cyclabilities and high specific charges of up to 140 A·h/kg, unprecedented for this type of hybrid materials.
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