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Electrochemical studies and Thermodynamic Parameters of tris(2,2’-bipyridyl) ruthenium (II) in nonaqueous Solutions

Published online by Cambridge University Press:  23 March 2012

Gendensuren Bolormaa ,
Munkhbat Battulga ,
Batjargal Naranbileg ,
Baatar Battsengel  and
Chimed Ganzorig
Gendensuren Bolormaa
Affiliation:
Center for Nanoscience and Nanotechnology and Department of Chemical Technology, School of Chemistry and Chemical Engineering, National University of Mongolia, University Street, 14704, Ulaanbaatar, Mongolia
Munkhbat Battulga
Affiliation:
Center for Nanoscience and Nanotechnology and Department of Chemical Technology, School of Chemistry and Chemical Engineering, National University of Mongolia, University Street, 14704, Ulaanbaatar, Mongolia
Batjargal Naranbileg
Affiliation:
Center for Nanoscience and Nanotechnology and Department of Chemical Technology, School of Chemistry and Chemical Engineering, National University of Mongolia, University Street, 14704, Ulaanbaatar, Mongolia
Baatar Battsengel
Affiliation:
Center for Nanoscience and Nanotechnology and Department of Chemical Technology, School of Chemistry and Chemical Engineering, National University of Mongolia, University Street, 14704, Ulaanbaatar, Mongolia
Chimed Ganzorig
Affiliation:
Center for Nanoscience and Nanotechnology and Department of Chemical Technology, School of Chemistry and Chemical Engineering, National University of Mongolia, University Street, 14704, Ulaanbaatar, Mongolia
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Abstract

In this study Ruthenium (II) tris (2, 2’-bipyridyl) complex in nonaqueous solution was studied by cyclic voltammetry and also its kinetic parameters were calculated. The redox reaction of ruthenium (II) trisbipyridyl complex is totally quasi-reversible and it can be described as a diffusion-controlled process. As a result of the redox reaction, the kinetic parameters of the electrode process such as diffusion coefficient (D), and heterogeneous rate constant (ks) were calculated. In addition, the different thermodynamic parameters such as standard free energy (ΔG#), enthalpy change (∆H#), and entropy change (∆S#) were determined and enthalpy change revealed the exothermic behavior of the electrode reaction. Both oxidation and reduction onset potentials of the ruthenium (II) trisbipyridyl complex was determined under the same experimental conditions to estimate the low ionization potential and electron affinity. The electrochemical and optical band gaps of the ruthenium (II) complex were compared.

Keywords

Ruphotochemicalsemiconducting
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1390: Symposium H/I – Organic Photovoltaics–Materials to Devices , 2012 , mrsf11-1390-h13-80
Copyright
Copyright © Materials Research Society 2012

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References

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