Title of Document: QUANTIFYING THE ROLE OF CERIUM OXIDE AS A CATALYST IN SOLID OXIDE FUEL CELL ANODES Steven C. DeCaluwe, Doctor of Philosophy, 2009 Directed By: Associate Professor Gregory S. Jackson, Department of Mechanical Engineering Solid Oxide Fuel Cells (SOFCs) are an important electrochemical power conversion device, due largely to their high efficiencies and ability to directly oxidiz...

This paper argues that innovation can be best understood as an information process which is then concretized as a product that meets demand. Two very different firms, Canon Inc. and Apple Computer Inc., are used as case study illustrations. Innovation does not proceed through logical deduction, but rather is furthered by the use of metaphors and analogies. The bureaucratic and staid structures ...

The observation of Manchot? that sodium pentacyano-ammineferroate2 I absorbs oxygen has led Baudisch and his coworkers3 to study the catalytic action of this salt, as well as of its water analogue II, in the oxidation of pyrimidines and purines. The present authors have previously reported in this journal4 on the nature of the oxidation products obtained. In the present paper the problem is con...

The present study deals with analysis of the activity of catalysts prepared by addition of different metals to Copper and Cobalt based catalysts for CO oxidation and the variation in activity caused by changes in composition. A series of catalysts were prepared with Cu:Co molar ratio 1:4 and a third metal (M= Ce, Ni, Au, Mg) was added in three different quantities. Compositions were prepared by...

A family of Ce-doped LaCoO 3 perovskites are presented as possible catalysts for Cl–VOCs elimination. These materials with different contents Ce were obtained through the citrate and reactive grinding methods. The insertion in original perovskite structure favours presence Co 2+ /Co 3+ /Ce 4+ redox pairs a higher content oxygen vacancies that enhances catalytic performance chlorobenzene combust...

Growing interest in the development of a hydrogen economy means that CO oxidation is increasingly important for upgrading H2-rich fuel gas streams cells. CeO2-supported catalysts are most promising candidates catalytic because their high activity. In present work, DFT+U calculations were performed to investigate stability and reactivity Ptn (n = 1?4) clusters supported on CeO2(111) (Pt/CeO2) Pt...

The present study deals with analysis of the activity of catalysts prepared by addition of different metals to Copper and Cobalt based catalysts for CO oxidation and the variation in activity caused by changes in composition. A series of catalysts were prepared with Cu:Co molar ratio 1:4 and a third metal (M= Ce, Ni, Au, Mg) was added in three different quantities. Compositions were prepared by...

0021-9517/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.jcat.2011.06.016 ⇑ Corresponding authors. Fax: +1 513 556 3473. E-mail addresses: [email protected] (P. Bool [email protected] (P.G. Smirniotis). High temperature water gas shift reaction (WGS) at low steam to CO ratios has been investigated over Fe2.4Ce0.3M0.3O4 (M = Cr, Co, Zr, Hf, and Mo) type of spinels in the temperature region of ...

Cerium-modified Cu-SSZ-13 catalysts were prepared by an aqueous ion-exchange method, and Ce Cu incorporated through different sequences. The results of NH3-SCR activity evaluations displayed that Cu1(CeCu)2 catalyst presented excellent catalytic activity, over 90% NOx conversion was obtained across the temperature range 200–500 °C. characterization showed sequence species influenced crystallini...