Thermochemical compatibility of doped-cerium oxide with various potential substrates in the fuel-reforming environment

Author

Courtney Joseph Monzyk

Abstract

"X ray diffraction was used to determine the presence of reactions between Sm doped CeO₂ (CSO) with a variety of candidate materials in a fuel reforming environment. Those materials exhibiting stability with CSO were then subjected to further testing in air using X ray diffraction and in the fuel reforming environment using thin film electrical measurement techniques. Reaction rates for the reduced set of candidate materials with CSO were determined from thin film resistivity measurements at temperatures equal to and above the expected field conditions. The X ray data suggested that YSZ and MgO may be good substrate materials; however, electrical measurements indicate that MgO is unstable in environments containing water vapor at high temperatures. Further X ray studies on YSZ have shown the formation of a solid solution at temperatures as low as 800°C, but below this temperature the effect is not thermodynamically favorable. Recently published and collected data suggests several possible enhancements of the activity and stability of the catalyst/support system. A novel composite microstructure is proposed that may reduce coking and enhance catalytic activity"--Abstract, page iii.

Advisor(s)

Anderson, H. U. (Harlan U.)

Committee Member(s)

Kosacki, Igor
Kohser, Ronald A.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Ceramic Engineering

Sponsor(s)

Argonne National Laboratories

Publisher

University of Missouri--Rolla

Publication Date

Spring 2001

Pagination

viii, 64 pages

Note about bibliography

Includes bibliographical references (pages 57-63).

Rights

© 2001 Courtney Joseph Monzyk, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Thesis Number

T 7909

Print OCLC #

47769944

Link to Catalog Record

Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.

Recommended Citation

Monzyk, Courtney Joseph, "Thermochemical compatibility of doped-cerium oxide with various potential substrates in the fuel-reforming environment" (2001). Masters Theses. 2034.
https://scholarsmine.mst.edu/masters_theses/2034