Oxygen Reduction Reaction Electrocatalysis in Alkaline Electrolyte on Glassy-Carbon-Supported Nanostructured Pr6O11 Thin-Films
| Autor: | Marian Chatenet, Rakesh Sharma, Verónica Müller, Elisabeth Djurado |
|---|---|
| Přispěvatelé: | Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Pr6O11 02 engineering and technology Electrolyte Glassy carbon lcsh:Chemical technology 010402 general chemistry Electrocatalyst Electrochemistry 7. Clean energy 01 natural sciences Catalysis electrostatic spray deposition lcsh:Chemistry electrocatalyst lcsh:TP1-1185 Physical and Theoretical Chemistry Thin film Rotating disk electrode ComputingMilieux_MISCELLANEOUS oxygen reduction reaction non-Pt group metal (non-PGM) Oxygen evolution [CHIM.CATA]Chemical Sciences/Catalysis 021001 nanoscience & nanotechnology 0104 chemical sciences Amorphous solid lcsh:QD1-999 Chemical engineering 0210 nano-technology alkaline electrolyte |
| Zdroj: | Catalysts Catalysts, MDPI, 2018, 8 (10), pp.461. ⟨10.3390/catal8100461⟩ Volume 8 Issue 10 Catalysts, Vol 8, Iss 10, p 461 (2018) |
| ISSN: | 2073-4344 |
| DOI: | 10.3390/catal8100461⟩ |
| Popis: | In this work, hierarchical nanostructured Pr6O11 thin-films of brain-like morphology were successfully prepared by electrostatic spray deposition (ESD) on glassy-carbon substrates. These surfaces were used as working electrodes in the rotating disk electrode (RDE) setup and characterized in alkaline electrolyte (0.1 M NaOH at 25 ± 2 ° C) for the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and the oxygen reduction reaction (ORR) for their potential application in alkaline electrolyzers or in alkaline fuel cells. The electrochemical performances of these electrodes were investigated as a function of their crystallized state (amorphous versus crystalline). Although none of the materials display spectacular HER and OER activity, the results show interesting performances of the crystallized sample towards the ORR with regards to this class of non-Pt group metal (non-PGM) electrocatalysts, the activity being, however, still far from a benchmark Pt/C electrocatalyst. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|