Ceramic oxygen-ion conductors

Stability issues The many stability issues discussed for ceramic oxygen-ion conductors apply also to proton conductors. Reactions with acidic gas components... 

R. I. Merino, N. Nicoloso, J. Maier, in Ceramic Oxygen Ion Conductors and Their Technological Applications, Ed. B. C. H. Steele, British Ceram. Proc., The Institute of Materials, Cambridge, 1996, pp. 43 K. Sasaki and J. Maier, Solid State Ionics 134 (2000) 303. 

Steele, B.C.H. (Ed.), (1996) Ceramic Oxygen Ion Conductors and Their Technological Applications, British Ceramic Proceedings Series No. 56, The Instimte of Materials, Minerals and Mining. 

H. Tagawa, J. Mizusaki, H. Nambu, C. Nakao, H. Takai, H. Minamiue, Crystal structure, phase relations and oxygen nonstoichiometry in perovskite type oxide Lai xSrxMn03. In Steele B.C.H. (ed.) Ceramic Oxygen Ion Conductors and Their Technological Applications, Brit. Ceram. Proceedings 56, pp. 113-123. Institute of Materials, London (1996)... 

The fast-ion ceramic conductors of interest here are cubic stabilized zirconia (CSZ), an oxygen ion conductor, and a sodium aluminate (/f -alumina), a sodium ion conductor. Both are discussed in detail below. The overview by T.A. Ramanarayanan et al. [8] covering CSZ and its applications is recommended. 

Kharton, V.V., Naumovich, E.N., Yaremchenko, A.A., and Marques, F.M.B., Research on the electrochemistry of oxygen ion conductors in the former Soviet Union. IV. Bismuth oxide-based ceramics. Journal of Solid State Electrochemistry, 2001, 5, 160-187. 

Other oxygen ion conductors that have potential use as solid electrolytes in electrochemical devices are stabilized bismuth and cerium oxides and oxide compounds with the perovskite and pyrochlore crystal structures. The ionic conductivity and related properties of these compounds in comparison with those of the standard yttria-stabilized zirconia (YSZ) electrolyte are briefly described in this section. Many of the powder preparation and ceramic fabrication techniques described above for zirconia-based electrolytes can be adapted to these alternative conductors and are not discussed further. 

Kaur M, Jain N, Sharma K, Bhattacharya S, Mainak Roy M, Tyagi AK, Gupta SK, Yakhmia JV (2008) Room-temperature H3S gas sensing at ppb level by single crystal In303 whiskers. Sens Actuators B 133 456-461 Kharton V, Naumovich EN, Yaremchenko AA, Marques FMB (2001) Research on the electrochemistry of oxygen ion conductors in the former Soviet Union. IV. Bismuth oxide-based ceramics. J Solid State Electrochem 5 160-187 Kharton V, Marques F, Atkinson A (2004) Transport properties of solid oxide electrolyte ceramics a brief review. Solid State Ionics 174 135-149... 

Marnellos G, Stoukides M (1998) Ammonia synthesis at atmospheric pressure. Science 282 98-100 Marques FMB, Wirtz GP (1991) Electrical properties of ceria-doped yttria. J Am Ceram Soc 74 598-605 Marques FMB, Kharton W, Naumovich EN, Shaula AL, Kovalevsky AV, Yaremchenko AA (2006) Oxygen ion conductors for fuel cells and membranes selected developments. Sohd State Ionics 177 1697-1703 Marsal A, Comet A, Morante JR (2003a) Study of the CO and humidity interference in La doped tin oxide CO gas sensor. Sens Actuators B 94 324-329... 

B.C.H. Steele. Dense Ceramic ion conducting membranes in Oxygen ion and mixed conductors and their technological applications, (1997) Erice, Italy Kluwer. 

SOE cells utilize solid ceramic electrolytes (e.g. yttria stabilized zirconia) that are good oxygen ion (0 ) conductors at very high temperatures in the range of 1000°C [8]. The operating temperature is decided by the ionic conductivity of the electrolyte. The feed gas, steam mixed with hydrogen, is passed through the cathode compartment. At the cathode side, the reaction is... 

Steele B C H etal., 2000a, Ceramic ion conductors for fuel cells, oxygen separation and syngas production. Ceramics Getting into the 2000 s, Pt D, CIMTEC. 

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