http://www.cnr.it/ontology/cnr/individuo/prodotto/ID306850

Stochastic resonance in electron transfer oscillations of extended viologen (Articolo in rivista)

Type

Label

Stochastic resonance in electron transfer oscillations of extended viologen (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

Hromadova M.; Valasek M.; Fanelli N.; Randriamahazaka H.N.; Pospisil L. (2014)
Stochastic resonance in electron transfer oscillations of extended viologen
in Journal of physical chemistry. C. (Online); American Chemical Society, Washington, DC (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Hromadova M.; Valasek M.; Fanelli N.; Randriamahazaka H.N.; Pospisil L. (literal)

Pagina inizio

Pagina fine

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://www.scopus.com/inward/record.url?eid=2-s2.0-84899786806&partnerID=q2rCbXpz (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

Rivista

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

Note

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

J. Heyrovský Institute of Physical Chemistry, V.v.i., Academy of Sciences of the Czech Republic, Dolejskova 3, Prague, Czech Republic; Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, V.v.i., Flemingovo n. 2, Prague, Czech Republic; Institute of Chemistry of Organometallic Compounds, CNR, via Moruzzi 1, Pisa, Italy; Université Paris-Diderot, 15 Jean de Baïf, Paris, France; Karlsruhe Institute of Technology, Institute of Nanotechnology, Herman-von-Helmholt-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany (literal)

Titolo

Stochastic resonance in electron transfer oscillations of extended viologen (literal)

Abstract

Selective generation of only odd harmonics and the absence of even harmonics were never described for electrochemical oscillators though this phenomenon is known in special fields of physics and in biological systems. The heterogeneous electron transfer to the extended viologen with four repetitive viologen units yields electrochemical current oscillations. Small perturbation of the applied voltage by only a few millivolts sine wave results in current oscillations, which selectively enhance only the odd harmonic higher frequencies. The effect is explained in terms of the theory of stochastic resonance occurring in driven oscillating reactions. The described interplay of heterogeneous and homogeneous coupled electron transfers complies with the behavior of a nonlinear potential-symmetric system. © 2014 American Chemical Society. (literal)

Editore