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http://hdl.handle.net/10397/95906
Title: | BaCo0.7Fe0.22Y0.08O3-δ as an active oxygen reduction electrocatalyst for low-temperature solid oxide fuel cells below 600 °C | Authors: | He, W Wu, X Yang, G Shi, H Dong, F Ni, M |
Issue Date: | 10-Feb-2017 | Source: | ACS energy letters, 10 Feb. 2017, v. 2, no. 2, p. 301-305 | Abstract: | Solid oxide fuel cells (SOFCs) offer great promise as sustainable energy conversion devices due to their high chemical-to-electrical conversion efficiency, flexible fuel sources, and low pollutions. In recent years, much effort has been devoted to developing intermediate temperature SOFCs. Central to the devices is the availability of a highly effective electrocatalyst for oxygen reduction reaction with reduced temperature operation, especially below 600 °C. Here we present a novel B-site Y-doped perovskite-type oxide BaCo0.7Fe0.22Y0.08O3-δ (BCFY) with extremely low polarization resistances (e.g., 0.10 ω cm2 at 550 °C), which is ascribed to high cubic symmetry structure and fast oxygen kinetics. The superior electrocatalytic activity and stability enable BCFY to be a promising cathode candidate toward the application of reduced temperature SOFCs. | Publisher: | American Chemical Society | Journal: | ACS energy letters | ISSN: | 2380-8195 | DOI: | 10.1021/acsenergylett.6b00617 | Rights: | © 2017 American Chemical Society This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsenergylett.6b00617. |
Appears in Collections: | Journal/Magazine Article |
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Ni_Active_Oxygen_Reduction.pdf | Pre-Published version | 2.4 MB | Adobe PDF | View/Open |
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