Modeling Electro-Chemo-Mechanical Behaviors within the Dense BaZr 0.8Y0.2O3-δ Protonic-Ceramic Membrane in a Long Tubular Electrochemical Cell
| Autor: | Sandrine Ricote, Robert J. Kee, Kasra Taghikhani, Huayang Zhu, John Berger, Alexis Dubois |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020209 energy Filtration and Separation TP1-1185 02 engineering and technology Electrochemistry Electrochemical cell Stress (mechanics) Chemical engineering 0202 electrical engineering electronic engineering information engineering Chemical Engineering (miscellaneous) Ceramic Composite material Polarization (electrochemistry) transport-induced stress Chemical technology Process Chemistry and Technology 021001 nanoscience & nanotechnology BZY20 Ceramic membrane Membrane electrochemistry visual_art visual_art.visual_art_medium TP155-156 0210 nano-technology Current density ceramic-proton-conducting membranes |
| Zdroj: | Membranes Volume 11 Issue 6 Membranes, Vol 11, Iss 378, p 378 (2021) |
| ISSN: | 2077-0375 |
| DOI: | 10.3390/membranes11060378 |
| Popis: | This paper reports an extended Nernst–Planck computational model that couples charged-defect transport and stress in tubular electrochemical cell with a ceramic proton-conducting membrane. The model is particularly concerned with coupled chemo-mechanical behaviors, including how electrochemical phenomena affect internal stresses and vice versa. The computational model predicts transient and steady-state defect concentrations, fluxes, stresses within a thin BaZr0.8Y0.2O3−δ (BZY20) membrane. Depending on the polarization (i.e., imposed current density), the model predicts performance as a fuel cell or an electrolyzer. A sensitivity analysis reveals the importance of thermodynamic and transport properties, which are often not readily available. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |