LAUSR

Abstract Hydrogen production was successfully obtained and enriched using lithium cuprate (Li2CuO2) as a multifunctional material during the water-gas shift reaction (WGSR). For this propose, water vapor and carbon monoxide reacted consecutively (C-WGSR) or simultaneously (S-WGSR) over the Li2CuO2 particle surface. In both cases, Li2CuO2 functioned as a catalyst, producing H2 and CO2 in a moderate temperature range (250–450 °C). In addition, lithium cuprate was able to capture the CO2 produced in WGSR, enhancing the H2 purity in the final gas flow. When the consecutive procedure (C-WGSR, first water vapor and then CO) was employee, the best H2 formation (75%) was obtained at around 250 °C. However, it was limited by the amount of H2O previously sorbed on Li2CuO2 surface, proceeding the reaction only in a short period of time (t