We discovered that CO2 electroreduction strongly favors the conversion of dominant isotope carbon (12C) and discriminates against less abundant, stable 13C isotope. Both absorption in alkaline electrolyte electrochemical reduction favor lighter isotopologue. As a result, stream unreacted leaving electrolyzer has an increased content, depletion product is several times greater than photosynthesi...

The origin of the Proterozoic Choghart iron oxide deposit in the Bafq mining district of Central Iran has been the subject of a long-standing dispute. Some authors believe that it was formed from magma, while others suggest metasomatic replacement of preexisting rocks. The present study on the basis of new oxygen isotope, REE and geochemical data concludes that neither of these two hypotheses c...

The use of a polymer electrolyte fuel cell (PEFC) with a Nafion membrane for isotopic separation of deuterium (D) was investigated. Mass analysis at the cathode side indicated that D diffused through the membrane and participated in an isotope exchange reaction. The exchange of D with protium (H) in H₂O was facilitated by a Pt catalyst. The anodic data showed that the separation efficiency was ...