Local enhancement of hydrogen production by the hydrolysis of Mg17Al12 with Mg 'model' material
| Autor: | J.-L. Bobet, Michel Nakhl, D. Zigah, E.D. Farias, M. Zakhour, S. Al Bacha, P. Garrigue |
|---|---|
| Přispěvatelé: | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO), Institut de Chimie du CNRS (INC)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Institut Lavoisier de Versailles (ILV), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université Libanaise, Institut des Sciences Moléculaires (ISM), Université Montesquieu - Bordeaux 4-Université Sciences et Technologies - Bordeaux 1-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), This work was financially supported by the AZM & SAADE Association the Lebanese University (Scientific research support program) and Bordeaux Foundation. This work was partially funded and performed within the framework of the Labex AMADEUX ANR-10-LABEX-0042-AMADEUS with the help of the French State Initiative d′Excellence IdEx ANR-10-IDEX-003-02., ANR-10-LABX-0042,AMADEus,Advanced Materials by Design(2010), ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Materials science
Mg17Al12 020209 energy Mg 02 engineering and technology Galvanic coupling law.invention Corrosion Scanning electrochemical microscopy Electron transfer law 0502 economics and business 0202 electrical engineering electronic engineering information engineering Materials Chemistry Galvanic cell 050207 economics Hydrogen production Mechanical Engineering 05 social sciences Metals and Alloys [CHIM.MATE]Chemical Sciences/Material chemistry Microstructure Cathode Anode Chemical engineering Mechanics of Materials SECM |
| Zdroj: | Journal of Alloys and Compounds Journal of Alloys and Compounds, Elsevier, 2022, 895, pp.162560. ⟨10.1016/j.jallcom.2021.162560⟩ |
| ISSN: | 0925-8388 |
| Popis: | International audience; The effect of galvanic coupling on the corrosion behavior of Mg and Mg17Al12 in Mg-Al alloys was studied by Scanning ElectroChemical Microscopy (SECM). The effect of galvanic coupling between Mg and Mg17Al12 was investigated using a “model” Mg+Mg17Al12 material with a controlled microstructure to evaluate the hydrogen evolution at a micrometric scale. SECM maps revealed that galvanic coupling between Mg and Mg17Al12 accelerates the corrosion rate (formation of a thicker passive layer) of both components. Mg17Al12 acts controversially to a conventional cathode in galvanic system since hydrogen production by its hydrolysis reaction was found to increase due to the electron transfer with the anode (Mg). |
| Databáze: | OpenAIRE |
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