Enhancing O2-permeability and CO2-tolerance of La2NiO4+δ membrane via internal ionic-path

Novel LaNiO-SmCeO dual-phase hollow fiber membrane was developed via a combined phase inversion-sintering process. The enhanced O-permeability is due to the existence of LNO and SDC interface crossing the composite membrane not only from the surface, but also from the bulkiness, which greatly promotes the oxygen ionic transport rates. Such dual-phase membrane shows great CO-resistance without sacrificing the oxygen permeation flux value when swept by pure CO compared with helium