Effect of dopants on CeO2 based solid state electrolytes for intermediate temperature electrochemical devices
dc.creator | Pikalova, E. Yu | en |
dc.creator | Demin, A. K. | en |
dc.creator | Bamburov, V. G. | en |
dc.creator | Maragou, V. I. | en |
dc.creator | Tsiakaras, P. E. | en |
dc.date.accessioned | 2015-11-23T10:45:36Z | |
dc.date.available | 2015-11-23T10:45:36Z | |
dc.date.issued | 2011 | |
dc.identifier.isbn | 9781118059890 | |
dc.identifier.issn | 1966219 | |
dc.identifier.uri | http://hdl.handle.net/11615/32264 | |
dc.description.abstract | The present work aims at the investigation of the influence of different dopants' ionic radii and their concentration on both the lattice parameters and the density of Ce1-xLnxO2-δ (x = 0-0.20; Ln = La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb) solid solutions, multi-component Ce1-xLnx/2Ln'x/2O2-δ (x = 0-0.20; Ln = Sm, La, Gd and Ln' = Dy, Nd, Y), Ce0.8(Sm 1-xMx)0.2O2-δ (M= Ca, Sr, x=0.0-1.0) and Ce0.8(Sm1-x-yBayM x)0-2O2-δ (M=Ca, Sr, x=0, 0.15, 0.20; y=0.05, 0.1) systems. The electrical conductivity measurements of the samples were carried out by using the four-point dc technique in different atmospheres. Temperature and oxygen partial pressure were varied automatically by means of microprocessor system ZIRKONIA-318 in the range of 623-1173 K and 0.1-10 -23 atm, respectively. To describe the electrolytic properties of solid electrolytes the notation of the EDB (electorytic domain boundary) - the critical oxygen partial pressure (PO2*) at which the values of the electronic and ionic components of conductivity are equal- is often used. The values of the critical partial pressure of oxygen for different compositions at 1023 K were calculated from dependences of total conductivity vs. oxygen partial pressure in proposal that ionic conductivity depends on dopand's concentration, but isn't influenced by PO2. | en |
dc.source.uri | http://www.scopus.com/inward/record.url?eid=2-s2.0-82355175361&partnerID=40&md5=b38d35d635eb6752d3a7b365f7aa0efb | |
dc.subject | Domain boundary | en |
dc.subject | Effect of dopants | en |
dc.subject | Electrical conductivity measurements | en |
dc.subject | Electrochemical devices | en |
dc.subject | Electrolytic properties | en |
dc.subject | Four-point | en |
dc.subject | Intermediate temperatures | en |
dc.subject | Ionic component | en |
dc.subject | Ionic radius | en |
dc.subject | Microprocessor systems | en |
dc.subject | Multicomponents | en |
dc.subject | Oxygen partial pressure | en |
dc.subject | Partial pressure of oxygen | en |
dc.subject | Solid-state electrolyte | en |
dc.subject | Barium | en |
dc.subject | Ceramic materials | en |
dc.subject | Electric conductivity | en |
dc.subject | Erbium | en |
dc.subject | Europium | en |
dc.subject | Gadolinium | en |
dc.subject | Holmium | en |
dc.subject | Neodymium | en |
dc.subject | Oxygen | en |
dc.subject | Partial pressure | en |
dc.subject | Positive ions | en |
dc.subject | Solid oxide fuel cells (SOFC) | en |
dc.subject | Solid state devices | en |
dc.subject | Ytterbium | en |
dc.subject | Solid electrolytes | en |
dc.title | Effect of dopants on CeO2 based solid state electrolytes for intermediate temperature electrochemical devices | en |
dc.type | conferenceItem | en |
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