Having said that, the functioning temperatures are tough regarding the nature and sturdiness with the resources used. Also they are much more elaborate and costly than other modalities, as well as their technological innovation is not too formulated. A diagram of a reliable oxide electrolysis mobile. Credit: Yang H. Ku/C&EN https://bookmarksparkle.com/story20261435/5-simple-statements-about-pem-electrolysis-explained