h i g h l i g h t sThe data support a diffusion-solubility mechanism in a N 2 /N 2 system at OCV. Ammonia did not move across the membrane when the feed to both electrodes was dry. With humidified feeds, the ammonia was transported from the anode to the cathode. Diffusion coefficients of NH 3 at 80 C are obtained as~10 À6 cm 2 s À1 at RH ¼ 50 and 80%.
a b s t r a c tData are presented for the transport of NH 3 from the anode to the cathode for various inlet conditions in a N 2 /N 2 laboratory-scale fuel cell at open circuit voltage (OCV). The data were obtained with a material balance technique, which uses an ion selective electrode (ISE) to determine the concentration of ammonium ions. The results show that ammonia did not move across the membrane when the feed to both electrodes was dry. However, with humidified feeds on either side, the ammonia was transported from the anode to the cathode. The data include changes in the relative humidity of the anode inlet and the flowrate on the cathode. The data support a diffusion-solubility mechanism in a N 2 /N 2 system at OCV.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.