| Full text | |
| Author(s): |
Da Silva, Rodrigo Garcia
[1, 2]
;
Rodrigues de Andrade, Adalgisa
[1]
;
Servat, Karine
[2]
;
Morais, Claudia
[2]
;
Napporn, Teko W.
[2]
;
Kokoh, Kouakou B.
[2]
Total Authors: 6
|
| Affiliation: | [1] Univ Sao Paulo, Dept Quim, Fac Filosofia Ciencias & Letras Ribeirao Preto, BR-14040901 Ribeirao Preto - Brazil
[2] Univ Poitiers, Dept Chem, IC2MP CNRS UMR 7285, 4 Rue Michel Brunet B27, TSA 51106, F-86073 Poitiers 9 - France
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | CHEMELECTROCHEM; v. 7, n. 21 SEP 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
The ethylene glycol oxidation reaction on nickel and ruthenium modified palladium nanocatalysts was investigated with electrochemical, spectroelectrochemical, and chromatographic methods. These carbon-supported materials, prepared by a revisited polyol approach, exhibited high activity towards the ethylene glycol electrooxidation in alkaline medium. Electrolysis coupled with high performance liquid chromatography/mass spectrometry (HPLC-MS) and in situ Fourier transform infrared spectroscopy (FTIRS) measurements allowed us to determine the different compounds electrogenerated in the oxidative conversion of this two-carbon molecule. High value-added products such as oxalate, glyoxylate, and glycolate were identified in all electrolytic solutions, whereas glyoxylate was selectively formed at the Ru-45@Pd-55/C electrode surface. In situ FTIRS results also showed a decrease in the pH value in the thin layer near the electrode as a consequence of OH(-)consumption during the spectroelectrochemical experiments. (AU) | |
| FAPESP's process: | 12/07654-3 - Preparation and characterization of bioanodos for biofuel cell glucose/O2 using PAMAM dendrimer as immobilization matrix |
| Grantee: | Laís Boracini Crepaldi |
| Support Opportunities: | Scholarships in Brazil - Master |