Oxygen surface exchange kinetics measurement by simultaneous optical transmission relaxation and impedance spectroscopy: Sr(Ti,Fe)O3-x thin film case study

• Published in: Science and technology of advanced materials Vol. 19; no. 1; pp. 130 - 141
• Main Authors: Perry, Nicola H., Kim, Jae Jin, Tuller, Harry L.
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 31.12.2018; Taylor & Francis Ltd; Taylor & Francis Group
• Subjects: 107 Glass and ceramic materials; 201 Electronics / Semiconductor / TCOs; 205 Catalyst / Photocatalyst / Photosynthesis; 206 Energy conversion / transport / storage / recovery; 204 Optics / Optical applications; 207 Fuel cells / Batteries / Super capacitors; 212 Surface and interfaces; 306 Thin film / Coatings; 307 Kinetics and energy / mass transport; 50 Energy Materials; Degradation; Exchanging; Focus on Carbon-neutral Energy Science and Technology; Gold; Impedance spectroscopy; Kinetics; Light transmission; mixed ionic and electronic conductor; optical absorption; Oxygen; oxygen surface exchange; Partial pressure; perovskite; Platinum; Spectrum analysis; Substrates; Thin films; Titanium; Yttria-stabilized zirconia; Yttrium oxide; Zirconium dioxide

We compare approaches to measure oxygen surface exchange kinetics, by simultaneous optical transmission relaxation (OTR) and AC-impedance spectroscopy (AC-IS), on the same mixed conducting SrTi 0.65 Fe 0.35 O 3-x film. Surface exchange coefficients were evaluated as a function of oxygen activity in...