Electrochemical oxygen pump using CeO2-based solid electrolyte for NOx detection independent of O2 concentration

CO2 and water vapor-tolerant yttria stabilized bismuth oxide (YSB) membranes with external short circuit for oxygen separation with CO2 capture at intermediate temperatures

“…These fluorite-type oxides such as yttria-stabilized zirconia (YSZ) or doped-ceria (SDC/GDC) are widely used as electrolytes for solid oxide fuel cells [22][23][24]. However, they do not possess the necessary electronic conductivity for O 2 permeation under mixed conducting concepts like the perovskite membranes unless another electronic conducting phase is incorporated via a dual phase membrane concept or the addition of external power source and electrodes via the oxygen pump [25][26][27][28][29][30][31]. The dual phase membranes are characterized by their super-low O 2 permeation fluxes due to the mismatching factors between the two phases, making them far away to be of commercial interest.…”

Effect of Alkali Metal Hydroxides on the Morphological Development and Optical Properties of Ceria Nanocubes Under Hydrothermal Conditions

“…In particular, there is an increasing interest in preparation of cerium oxide (ceria) that has recently been used in various fields such as an oxygen ion conductor in solid-oxide fuel cells 4 and as an oxygen pump due to its high oxygen ion conductivity. 5 Ceria has also received much attention in the area of three-way catalysts 6 as oxygen promoters and in the area of catalysts for H 2 production from fuels. 7 8 Moreover, ceria has gained much attention for development of ultraviolet (UV) absorbent material, its absorption at about 400 nm being the strongest among all oxides.…”

Effect of Dysprosia Additive on the Consolidation of CeO2 by Spark Plasma Sintering

“…Cerium oxide, CeO 2, is a mixed electrical conductor in the pure form and an oxygen‐ ion conductor when doped with rare‐earth metal ions, e.g., Gd 3+ , Sm 3+ , Y 3+ . When doped with the last (Y 3+ ), ceria is suitable for a variety of electrochemical applications such as solid electrolyte membranes in oxygen sensors, fuel cells, and oxygen pumps . Among oxygen ion conductors, Y 2 O 3 ‐stabilized ZrO 2 (YSZ) has been the most extensively investigated.…”

“…When doped with the last (Y 3+ ), ceria is suitable for a variety of electrochemical applications such as solid electrolyte membranes in oxygen sensors, 1,2 fuel cells, 3-5 and oxygen pumps. 6 Among oxygen ion conductors, Y 2 O 3 -stabilized ZrO 2 (YSZ) has been the most extensively investigated. However, considerable effort was devoted to developing alternative solid electrolytes for YSZ, especially for solid oxide fuel cell (SOFC) applications.…”