At about 6:55 into the video Why Moon Mining Will DEFINITELY Be A Thing it is stated that lunar silica (SiO2) could be turned into silane (SiH4), which is the silicon analogue of methane. It also states that silane could be used as a rocket fuel, which when combined with oxygen would produce water and silica.
Two questions come to mind:
- Has silane ever seriously been considered as a potential rocket fuel and,
- With silica being a product of combustion with oxygen there is a possibility that silica could be deposited on the inside of the exhaust nozzle. Would this be a serious problem?