Приказ основних података о документу
A new electrolyte based on Tm3+-doped delta-Bi2O3-type phase with enhanced conductivity
dc.creator | Dapčević, Aleksandra | |
dc.creator | Poleti, Dejan | |
dc.creator | Rogan, Jelena | |
dc.creator | Radojković, Aleksandar | |
dc.creator | Radović, M. | |
dc.creator | Branković, Goran | |
dc.date.accessioned | 2021-03-10T12:54:36Z | |
dc.date.available | 2021-03-10T12:54:36Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 0167-2738 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3135 | |
dc.description.abstract | The possibility to stabilize the delta-Bi2O3-type polymorph with high ionic conductivity by doping with Tm2O3 was investigated in this study. Five microaystalline samples were synthesized at 750 degrees C from alpha-Bi2O3 and Tm2O3 mixtures with compositions (Bi1-xTmx)(2)O-3, where x = 0.04, 0.08, 0.11, 0.14 and 0.20. The XRD, SEM, HRTEM and SAED results showed that the targeted delta-Bi2O3-type single-phase (space group Fm (3) over barm) was formed for 0.11 lt = x lt = 0.20. The unit cell parameter of delta-Bi2O3-type phase decreases with increase in Tm content. According to DTA, no phase transitions were observed in the sample with x = 020, indicating that the obtained delta-Bi2O3-type phase is structurally stable from room temperature to 985 degrees C. Based on EIS, (Bi0.80Tm0.20)(2)O-3 exhibits high conductivity (0.117 S cm(-1) at 550 degrees C) with activation energies: 0.38(4) eV above 550 degrees C and 127(2) eV below 550 degrees C, due to the change in charge carrier mobility. The effect of thermal aging was investigated and discussed. | en |
dc.publisher | Elsevier Science Bv, Amsterdam | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS// | |
dc.relation | U.S. National Science FoundationNational Science Foundation (NSF) [DMR-1057155] | |
dc.rights | restrictedAccess | |
dc.source | Solid State Ionics | |
dc.subject | Solid oxide fuel cell | en |
dc.subject | Electrolyte | en |
dc.subject | Oxide ion conductor | en |
dc.subject | Stability | en |
dc.subject | delta-Bi2O3-type phase | en |
dc.title | A new electrolyte based on Tm3+-doped delta-Bi2O3-type phase with enhanced conductivity | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 23 | |
dc.citation.other | 280: 18-23 | |
dc.citation.rank | M22 | |
dc.citation.spage | 18 | |
dc.citation.volume | 280 | |
dc.identifier.doi | 10.1016/j.ssi.2015.08.004 | |
dc.identifier.scopus | 2-s2.0-84940471546 | |
dc.identifier.wos | 000362605500003 | |
dc.type.version | publishedVersion |