The mixed potential response for NO and NO2 from two different oxide electrodes on yttria-stabilized zirconia (YSZ) was examined at 500 jC. The two electrodes were La0.6Sr0.4Fe0.8Co0.2O3 (LSFCO) and Cr2O3. Sensors made with LSFCO electrodes had consistently lower sensitivity towards NOx as compared to those with Cr2O3 and the focus of this paper is to understand the fundamental reasons for the ...

Abstract The reduction of carbon dioxide emissions and the corresponding increase in gasoline engine efficiency are crucial development. Wall heat losses a major cause loss, accounting for 15–30% total fuel energy. One promising solution is use "thermal swing" coatings at combustion chamber walls because offering possibility that surface wall temperature following working gas temperature, where...

A triple-layer composite membrane with porous-dense-porous structure was proposed to develop a high performance membrane reactor. The triple-layer composite membrane consists of a porous Sr0.7Ba0.3Fe0.9Mo0.1O3 δ (SBFM) layer, a dense 0.5 wt% Nb2O5-doped SrCo0.8Fe0.2O3 δ (SCFNb) layer and a porous La0.8Sr0.2MnO3 δ–yttria stabilized zirconia (LSM/YSZ) layer. The porous layers can effectively redu...

The technique of electrospinning was employed to fabricate uniform 1-D inorganic–organic composite nanofibers from alcoholic solutions containing polyvinyl pyrrolidone (PVP) and suitable aqueous precursors of yttrium and zirconium ions. Upon firing and sintering under carefully pre-selected time-temperature profiles, yttria-stabilized zirconia nanofibers retaining the original morphological fea...

Electrochemical analysis allows in situ characterization of solid oxide electrochemical cells (SOCs) under operating conditions. However, the SOCs that have been analyzed in this way have ill-defined or uncommon microstructures in terms of porosity and tortuosity. Therefore, the nano-scale characterization of SOCs with respect to three-phase boundaries has been hindered. We introduce novel in s...

Zirconia electrodes with dendritic patterns were fabricated by stereolithographic additive manufacturing (STL-AM). A solid electrolyte of yttria-stabilized zirconia (YSZ) was selected for oxygen separation in the molten salt electrolysis aluminum smelting without carbon dioxide excretion. Thereafter, 4, 6, 8 and 12-coordinated structures composed cylindrical lattices designed as computer graphi...

We report the growth and characterization of single-crystalline Sn-doped In2O3 (ITO) and Mo-doped In2O3 (IMO) nanowires. Epitaxial growth of vertically aligned ITO nanowire arrays was achieved on ITO/yttria-stabilized zirconia (YSZ) substrates. Optical transmittance and electrical transport measurements show that these nanowires are high-performance transparent metallic conductors with transmit...

Model-type sputter deposited platinum microelectrodes with different grain sizes were investigated on single crystalline yttria stabilized zirconia (YSZ) by means of impedance spectroscopy. Measurements on single platinum microelectrodes could be continuously performed for > 100 h and from 250 to 800 °C without losing contact. From the temperature dependence, two parallel reaction pathways for ...

Thermal barrier coatings (TBC) are used widely on a range of components that operate at high temperatures. We report measurement of the factor that is required to convert the Raman shift to stress for air plasma sprayed yttria (7 wt %) stabilized tetragonal zirconia (ZrO(2)) (YSZ) thermal barrier coatings. The factor is evaluated for the as-coated condition and also following a heat treatment a...