Role of adsorbed species for the anodic methanol oxidation on platinum in acidic electrolytes

1968 ◽  
Vol 45 ◽  
pp. 79 ◽  
Author(s):  
M. W. Breiter
Keyword(s):  
Methanol Oxidation ◽  
Adsorbed Species

scholarly journals Effects of the Interfacial Structure on the Methanol Oxidation on Platinum Single Crystal Electrodes

Surfaces ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 177-192 ◽  
Author(s):  
Mohammad Kamyabi ◽  
Ricardo Martínez-Hincapié ◽  
Juan Feliu ◽  
Enrique Herrero
Keyword(s):  
Single Crystal ◽  
Methanol Oxidation ◽  
Interfacial Structure ◽  
Direct Oxidation ◽  
Adsorbed Species ◽  
Oxidation Of Methanol ◽  
Methanol Solutions ◽  
Platinum Single Crystal ◽  
The Right

Methanol oxidation has been studied on low index platinum single crystal electrodes using methanol solutions with different pH (1–5) in the absence of specific adsorption. The goal is to determine the role of the interfacial structure in the reaction. The comparison between the voltammetric profiles obtained in the presence and absence of methanol indicates that methanol oxidation is only taking place when the surface is partially covered by adsorbed OH. Thus, on the Pt(111) electrode, the onset for the direct oxidation of methanol and the adsorption of OH coincide. In this case, the adsorbed OH species are not a mere spectator, because the obtained results for the reaction order for methanol and the proton concentrations indicate that OH adsorbed species are involved in the reaction mechanism. On the other hand, the dehydrogenation step to yield adsorbed CO on the Pt(100) surface coincides with the onset of OH adsorption on this electrode. It is proposed that adsorbed OH collaborates in the dehydrogenation step during methanol oxidation, facilitating either the adsorption of the methanol in the right configuration or the cleavage of the C—H bond.

The influencing role of oxophilicity and surface area of the catalyst for electrochemical methanol oxidation reaction: a case study

2018 ◽  
Vol 23 (7) ◽  
pp. 440-447 ◽  
Author(s):  
Samarjeet Siwal ◽  
Nishu Devi ◽  
Venkata Perla ◽  
Rasmita Barik ◽  
Sarit Ghosh ◽  
...  
Keyword(s):  
Surface Area ◽  
Methanol Oxidation ◽  
Oxidation Reaction ◽  
Methanol Oxidation Reaction

The Role of Catalyst Properties on Methanol Oxidation over V2O5–TiO2 Using Ozone

2007 ◽  
Vol 8 (3-4) ◽  
pp. 297-309 ◽  
Author(s):  
Endalkachew Sahle-Demessie ◽  
Catherine B. Almquist ◽  
Sridara Chandra Sehker
Keyword(s):  
Methanol Oxidation

The role of adsorbate structure in the photodissociation dynamics of adsorbed species: Methyl iodide/MgO(100)

1995 ◽  
Vol 102 (18) ◽  
pp. 7267-7276 ◽  
Author(s):  
D. Howard Fairbrother ◽  
K. A. Briggman ◽  
P. C. Stair ◽  
Eric Weitz
Keyword(s):  
Methyl Iodide ◽  
Adsorbed Species ◽  
Adsorbate Structure

scholarly journals On the Structural Stability of MXene and the Role of Transition Metal Adatoms

Nanoscale ◽  
2018 ◽  
Vol 10 (23) ◽  
pp. 10850-10855 ◽  
Author(s):  
Justinas Palisaitis ◽  
Ingemar Persson ◽  
Joseph Halim ◽  
Johanna Rosen ◽  
Per O. Å. Persson
Keyword(s):  
Transition Metal ◽  
Structural Stability ◽  
Adsorbed Species ◽  
Over Time

We investigated the presence of adsorbed species on Nb2C MXene surfaces and their influence on the structural stability over time.

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