Influence of the adsorption of phycocyanin on the performance in DSS cells: and electrochemical and QCM evaluation

Enciso, María Paula - Decoppet, Jean-David - Moehl, Thomas - Grätzel, Michael - Wörner, Michael - Cerdá, María Fernanda

Resumen:

The influence of some coadsorbents and different pH values on the efficiency of DSS cells assembled with phycocyanin was evaluated using quartz crystal microbalance (QCM) and electrochemical techniques as impedance spectroscopy (EIS) and cyclic voltammetry (CV). Chlorophyll, heptadecanoic acid and 7.5 or 8.5 pH values were applied when nanostructured TiO2 electrode was dipped in the dye solution. Best efficiency conversion values were obtained when using fatty acids as coadsorbents, reaching a conversion efficiency of 0.04 % for open cells.


Detalles Bibliográficos
2016
Coadsorbents
DSSC
EIS
Phycocyanin
QCM
Inglés
Universidad de la República
COLIBRI
https://hdl.handle.net/20.500.12008/26307
Acceso abierto
Licencia Creative Commons Atribución (CC - By 4.0)
Resumen:
Sumario:The influence of some coadsorbents and different pH values on the efficiency of DSS cells assembled with phycocyanin was evaluated using quartz crystal microbalance (QCM) and electrochemical techniques as impedance spectroscopy (EIS) and cyclic voltammetry (CV). Chlorophyll, heptadecanoic acid and 7.5 or 8.5 pH values were applied when nanostructured TiO2 electrode was dipped in the dye solution. Best efficiency conversion values were obtained when using fatty acids as coadsorbents, reaching a conversion efficiency of 0.04 % for open cells.