Effect of chemical redox on Gd-doped ceria mass diffusion. Issue 37 (7th October 2015)

• Record Type: Journal Article
• Authors: Ni, D. W.; de Florio, D. Z.; Marani, D.; Kaiser, A.; Tinti, V. B.; Esposito, V.
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 37(2015)
• Page Start: 18835
• Page End: 18838
• Publication Date: 2015-10-07
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5ta05537g
• Languages: English
• ISSNs: 2050-7488

Abstract

<abstract abstract-type="toc"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <graphic position="anchor" id="ga" xlink:href="ark:/27927/pgj2qrrh614" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" />Cations' valence and size influence mass diffusion and oxygen defects in ceria. Mass diffusion is limited by Gd³⁺ under oxidative conditions, where Ce⁴⁺ is the host cation, while it is unleashed under reducing conditions, where Ce³⁺ and Gd³⁺ have the same charge and similar size. Solid solutions with enhanced electrochemical properties are formed under controlled thermo-chemical conditions.</p> </abstract>