Počet záznamů: 1
On the Adsorption of Extended Viologens at the Electrode|Electrolyte Interface
- 1.
SYSNO ASEP 0349520 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název On the Adsorption of Extended Viologens at the Electrode|Electrolyte Interface Tvůrce(i) Hromadová, Magdaléna (UFCH-W) RID, ORCID, SAI
Kolivoška, Viliam (UFCH-W) RID, ORCID
Sokolová, Romana (UFCH-W) RID, ORCID, SAI
Gál, Miroslav (UFCH-W)
Pospíšil, Lubomír (UFCH-W) RID, ORCID
Valášek, Michal (UOCHB-X)Zdroj.dok. Langmuir. - : American Chemical Society - ISSN 0743-7463
Roč. 26, č. 22 (2010), s. 17232-17236Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova extended viologens ; electrode/electrolyte interface ; adsorption Vědní obor RIV CG - Elektrochemie CEP IAA400400802 GA AV ČR - Akademie věd GA203/08/1157 GA ČR - Grantová agentura ČR GA203/09/0705 GA ČR - Grantová agentura ČR OC 140 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40550506 - UOCHB-X (2005-2011) UT WOS 000283837800081 DOI 10.1021/la1034239 Anotace Extended viologens represent a group of organic molecules intended to be used as molecular wires in molecular electronic devices. Adsorption properties of a novel series of extended viologen molecules were studied at the mercury electrode|electrolyte interface. These compounds form compact monolayers around the potential of zero charge with a constant differential capacitance value of 2.5 ± 0.2 μF cm−2 independent of temperature, length of the molecule, and its bulk concentration. At more negative potentials their reduction in the adsorbed state takes place. We showed that the adsorption process is diffusion controlled and time needed to fully cover the electrode surface is independent of the electrode potential. A modified Koryta equation was employed for the calculation of the surface concentration of the adsorbates leading to the value of 5.3 × 10−11 mol cm−2 for the shortest wire and to 1.6 × 10−11 mol cm−2 for the longest one. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2011
Počet záznamů: 1