Naslov
The impact of fractal geometry on permittivity and related quantities

Autori
Risović, Dubravko ; Gašparović, Blaženka ; Ćosović Božena

Izvornik
Journal of Physical Chemistry B, (1520-6106) 106 (2002); 9810-9814

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
permittivity; capacitance; fractal dimension; adsorption; linoleic acid; AC voltammetry
(permittivity; capacitance; fractal dimension; adsorption; linoleic acid; AC voltametry)

Sažetak
A new physical model of relative permittivity and derived quantities of fractal structures, contrary to the current concept, predicts their dependence on the fractal dimension (D) and on the extent (R) of the considered structure. The scaling of considered quantities predicted by our theory is ~ RD-d, where d is dimension of Euclidean space. Hence, fractality, a feature often found in physical, chemical and biological systems, influences also basic properties of such systems that, so far, were believed to be material and not structure related. The theory has been experimentally verified by electrochemical measurements of capacitance of adsorbed layers of nonionic surfactant Triton-X-100 and linoleic acid that have fractal structure. The experimental results, substantiating theoretical predictions, are presented and the influence of relevant parameters is discussed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Geologija

POVEZANOST RADA