Percolation model of conductivity of calix[n]arene-p-sulfonic acids

• Published in: Russian journal of electrochemistry Vol. 49; no. 8; pp. 807 - 812
• Main Authors: Ukshe, A. E., Shmygleva, L. V., Pisareva, A. V., Bukun, N. G., Dobrovol’skii, Yu. A.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-08-2013
• Subjects: Chemistry; Chemistry and Materials Science; Electrochemistry; Physical Chemistry; percolation model; hydrate; calixarene sulfonic acid; proton conductivity; percolation threshold
• ISSN: 1023-1935; 1608-3342
• DOI: 10.1134/S1023193513080193

Proton conductivity of special class of aromatic sulfonic acids is described, in particular, calixarene sulfonic acids that consist of flat anionic layers interlinked by labile two-dimensional hydrogen-bond network. High proton conductivity of their hydrates was observed earlier. The dependence of their transport characteristics (the proton conductivity, the activation energy of conductivity) was shown to have threshold character. The studied systems’ behavior is described on basis of percolation model that assumes changing of the proton transport mechanism at low water content in the structure.