EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions

An electromodulated IR reflectance spectroscopy (EMIRS) study of the adsorbed species resulting from HCOOH and NaCOOH chemisorption at a smooth Pd electrode is presented. In acid solution, large amounts of multibonded CO species are detected, in contrast with the absence of any type of CO adsorbate...

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Autores principales: Vela, María Elena, Lezna, Reynaldo Oscar, Tacconi, Norma R. de, Arvia, Alejandro Jorge, Beden, B., Hahn, F., Lamy, C.
Formato: Articulo
Lenguaje:Inglés
Publicado: 1992
Materias:
Ciencias Exactas
Química
Electromodulated IR reflectance spectroscopy
Chemisorption
Formic acid electrooxidation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/120851
https://www.sciencedirect.com/science/article/abs/pii/002207289280017X
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-120851
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
Electromodulated IR reflectance spectroscopy
Chemisorption
Formic acid electrooxidation
spellingShingle Ciencias Exactas
Química
Electromodulated IR reflectance spectroscopy
Chemisorption
Formic acid electrooxidation
Vela, María Elena
Lezna, Reynaldo Oscar
Tacconi, Norma R. de
Arvia, Alejandro Jorge
Beden, B.
Hahn, F.
Lamy, C.
EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
topic_facet Ciencias Exactas
Química
Electromodulated IR reflectance spectroscopy
Chemisorption
Formic acid electrooxidation
description An electromodulated IR reflectance spectroscopy (EMIRS) study of the adsorbed species resulting from HCOOH and NaCOOH chemisorption at a smooth Pd electrode is presented. In acid solution, large amounts of multibonded CO species are detected, in contrast with the absence of any type of CO adsorbate in alkaline solutions. For the latter, the appearance of adsorbed formate species can be concluded from the increase in the intensity of two bands at 1060 and 2960 cm<sup>−1</sup>. These results suggest that the adsorbate is bound to Pd via two O atoms. In acid solution, however, the contribution of a formate species bound to the metal through a single O atom is discussed as the result of competitive adsorption with the multibonded CO species.
format Articulo
Articulo
author Vela, María Elena
Lezna, Reynaldo Oscar
Tacconi, Norma R. de
Arvia, Alejandro Jorge
Beden, B.
Hahn, F.
Lamy, C.
author_facet Vela, María Elena
Lezna, Reynaldo Oscar
Tacconi, Norma R. de
Arvia, Alejandro Jorge
Beden, B.
Hahn, F.
Lamy, C.
author_sort Vela, María Elena
title EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
title_short EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
title_full EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
title_fullStr EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
title_full_unstemmed EMIRS studies of formic acid electrooxidation on Pd, Au and Pd + Au alloys : Part 1. Investigation of the adsorbates derived from HCOOH and NACOOH chemisorption at Pd in acid and alkaline solutions
title_sort emirs studies of formic acid electrooxidation on pd, au and pd + au alloys : part 1. investigation of the adsorbates derived from hcooh and nacooh chemisorption at pd in acid and alkaline solutions
publishDate 1992
url http://sedici.unlp.edu.ar/handle/10915/120851
https://www.sciencedirect.com/science/article/abs/pii/002207289280017X
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