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Titolo:
Lattice oxygen transfer in fluorite-type oxides containing Ce, Pr, and/or Tb
Autore:
Kang, ZC; Eyring, L;
Indirizzi:
Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA Arizona StateUniv Tempe AZ USA 85287 Chem & Biochem, Tempe, AZ 85287 USA
Titolo Testata:
JOURNAL OF SOLID STATE CHEMISTRY
fascicolo: 1, volume: 155, anno: 2000,
pagine: 129 - 137
SICI:
0022-4596(20001115)155:1<129:LOTIFO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLID-SOLUTIONS; OXIDATION; CATALYSTS; BEHAVIOR; STORAGE; METHANE;
Keywords:
oxygen transfer capacity (OTC); oxygen storage capacity (OSC); fluorite-related oxides; hydrogen production from water; three-way catalysts (TWC);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Kang, ZC Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA Arizona State Univ Tempe AZ USA 85287 ochem, Tempe, AZ 85287 USA
Citazione:
Z.C. Kang e L. Eyring, "Lattice oxygen transfer in fluorite-type oxides containing Ce, Pr, and/or Tb", J SOL ST CH, 155(1), 2000, pp. 129-137

Abstract

Oxygen transfer capacity (OTC) is needed, for example, in three-way catalysts (TWC) for treatment of exhaust gases, extraction of pure oxygen from gaseous mixtures such as air, or the extraction of hydrogen from hydrogen-containing compounds such as water or methane, This property is explored in fluorite-related materials of the formula Ce1-x-y-z-p PrxTbyMzRpO2-x (x + y z > 0.5) in which M is a metal, especially Zr, Ti, V, Mo, W, Nb, Mn, Cu, Cr, Fe, Ni, Co, Ta, and Ri, and in which R is another rare-earth element. The OTC of these oxides is inherent in the characteristics of fluorite-related structures and the variable valency of Ce, Pr, and/or Tb, Such oxides canhave the OTC property under reducing and oxidizing conditions without any reconstructive phase transitions. OTC data of some binary, ternary, acid quaternary oxides containing Ce, Pr, or Tb are discussed. (C) 2000 Academic Press.

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Documento generato il 04/07/20 alle ore 15:04:33