MIXIE, the Mars Oxygen ISRU Experiment is an experiment on the Perseverance rover currently on its way to Mars, that will test solid oxide electrolysis as a way to extract oxygen from atmospheric carbon dioxide.
As such its solid oxide fuel cell (run in regenerative mode, i.e. "backwards" to produce oxygen) will be exposed to the martian atmosphere at least sometimes if not constantly.
But we don't control the weather on Mars, at least not yet!
- Will MOXIE get physically clogged or even chemically degraded by martian dust? If so, how quickly? Besides physically covering the surface, I wonder if perchlorate in martian soil and presumably the dust could chemically poison the chemistry.
- Is MOXIE's fuel cell's solid oxide material constantly exposed to the Martian atmosphere or is there a little door that opens and closes? Are there at least "dust traps" or other passive devices that keep the dust from clogging the permeable surface of the solid oxide?