التفاصيل البيبلوغرافية
| العنوان: |
Spectroelectrochemistry of palladium hexacyanoferrate films on platinum substrates |
| المؤلفون: |
Lezna, Reynaldo Oscar, Romagnoli, Roberto, De Tacconi, Norma R., Rajeshwar, Krishnan |
| بيانات النشر: |
Elsevier Science SA |
| المجموعة: |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
| مصطلحات موضوعية: |
ELECTROCHROMISM, INFRARED SPECTROELECTROCHEMISTRY, PRUSSIAN BLUE ANALOGS, REDOX TRANSITIONS, UV-VIS REFLECTANCE SPECTROSCOPY, https://purl.org/becyt/ford/1.4, https://purl.org/becyt/ford/1 |
| الوصف: |
Among the Prussian blue analogs, palladium hexacyanoferrate (PdHCF) is of interest from electrochromic and catalytic perspectives, but has not been extensively studied to date. In this paper we report on the combined use of cyclic voltammetry and in situ infrared and UV-vis spectroelectrochemistry of PdHCF films potentiodynamically grown on platinum electrodes. Infrared spectroscopy (in the cyanide stretching frequency region) showed two pairs of interrelated bands at 2075 cm-1/2180 cm-1 and 2110 cm-1/2130 cm-1. UV-vis reflectance spectroscopy also showed two distinct sets of features that are entirely in agreement with the voltammetric peaks and infrared signatures at corresponding potentials. These redox processes have excellent stability and correspond to two PdHCF compound stoichiometries bearing Pd/Fe elemental ratios of 1:1 and 3:2, respectively. A comparison of redox processes and compound stoichiometries in PdHCF with counterparts of Group VIII B metals (namely Ni and Pt) is finally presented. © 2003 Elsevier Science B.V. All rights reserved. ; Fil: Lezna, Reynaldo Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina ; Fil: Romagnoli, Roberto. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Tecnología de Pinturas. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Investigaciones en Tecnología de Pinturas; Argentina ; Fil: De Tacconi, Norma R. University of Texas; Estados Unidos ; Fil: Rajeshwar, Krishnan. University of Texas; Estados Unidos |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf; application/msword |
| اللغة: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0022072803000810?via%3Dihub; http://hdl.handle.net/11336/152006; CONICET Digital; CONICET |
| الاتاحة: |
http://hdl.handle.net/11336/152006 |
| Rights: |
info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
| رقم الانضمام: |
edsbas.861E6E5B |
| قاعدة البيانات: |
BASE |