TY - JOUR
T1 - Study about an assembly of iron(III) hexacyanoferrate(II) and α-Fe2O3 as a secondary photocell
T2 - Part 1. Synthesis, characterization and photoelectrochemical properties of FTO/α-Fe2O3/KFe[Fe(CN)6]3 electrode system
AU - Rojas, Víctor
AU - Navarrete, Emilio
AU - Román, Javier
AU - Ballesteros, Luis
AU - Cáceres, Gustavo
AU - Díaz, Romina
AU - Schrebler, Ricardo
AU - Córdova, Ricardo
AU - Grez, Paula
AU - Henríquez, Rodrigo
AU - Marotti, Ricardo E.
AU - Dalchiele, Enrique A.
AU - Herrera, Francisco
AU - Muñoz, Eduardo C.
N1 - Funding Information:
We thank FONDECYT , Chile, for financial support for this study (grant N° 1180784 ) and the Dirección de Investigación e Innovación of the Pontificia Universidad Católica de Valparaíso (grant N° 125.728/2018 DII-PUCV). R. E. Marotti also acknowledges the support received from CNPq (Brazil, Prosul Program, Project # 490580/2008-4 ), PEDECIBA – Física , ANII (Administración Nacional de Investigación e Innovación) and the CSIC (Comisión Sectorial de Investigación Científica) of the Universidad de la República, in Montevideo, Uruguay.
Funding Information:
We thank FONDECYT, Chile, for financial support for this study (grant N? 1180784) and the Direcci?n de Investigaci?n e Innovaci?n of the Pontificia Universidad Cat?lica de Valpara?so (grant N? 125.728/2018 DII-PUCV). R. E. Marotti also acknowledges the support received from CNPq (Brazil, Prosul Program, Project # 490580/2008-4), PEDECIBA ? F?sica, ANII (Administraci?n Nacional de Investigaci?n e Innovaci?n) and the CSIC (Comisi?n Sectorial de Investigaci?n Cient?fica) of the Universidad de la Rep?blica, in Montevideo, Uruguay.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - This study addresses the synthesis and characterization of iron(III) hexacyanoferrate(II) (Prussian blue, PB) deposited on a semiconductor hematite electrode (α-Fe2O3). The formation of the Prussian blue/hematite interface was carried out by cyclic voltammetry. The modified electrode was morphologically characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM), structurally by x-ray diffraction (XRD), and photoelectrochemically by cyclic voltammetry under polychromatic illumination. The structure of the electrode system shows a cauliflower type morphology, with the typical PB structure. The electrochemical characterization indicates an increase of the currents of the low- and high-spin iron systems of PB when the system is illuminated, indicating that photogenerated charge carriers are involved.
AB - This study addresses the synthesis and characterization of iron(III) hexacyanoferrate(II) (Prussian blue, PB) deposited on a semiconductor hematite electrode (α-Fe2O3). The formation of the Prussian blue/hematite interface was carried out by cyclic voltammetry. The modified electrode was morphologically characterized by scanning electron microscopy (SEM) and atomic force microscopy (AFM), structurally by x-ray diffraction (XRD), and photoelectrochemically by cyclic voltammetry under polychromatic illumination. The structure of the electrode system shows a cauliflower type morphology, with the typical PB structure. The electrochemical characterization indicates an increase of the currents of the low- and high-spin iron systems of PB when the system is illuminated, indicating that photogenerated charge carriers are involved.
KW - Photoelectrochemistry
KW - Prussian blue
KW - α-FeO semiconductor
UR - http://www.scopus.com/inward/record.url?scp=85078976282&partnerID=8YFLogxK
U2 - 10.1016/j.jelechem.2020.113913
DO - 10.1016/j.jelechem.2020.113913
M3 - Article
AN - SCOPUS:85078976282
VL - 860
JO - Journal of Electroanalytical Chemistry
JF - Journal of Electroanalytical Chemistry
SN - 1572-6657
M1 - 113913
ER -