1 Zhao, S., Xia, C., Meng, G., “Effect of Gd (Sm) doping on properties of ceria electrolyte for solid oxide fuel cells”, Journal of Power Sources, 115, 44-48 (2003). 2 Shaula, A.L., Kharton, V.V., Waerenborgh, J.C., “Oxygen ionic and electronic transport in apatite ceramics”, J. Eur. Ceram. Soc., 25, 2583-2586 (2005). 3 Kwon, O.H., Choi, G.M., “Electrical conductivity of thick film YSZ”, Solid State Ionics, 177, 3057-3062 (2006). 4 Kendrick, E., Slater, P.R., “Synthesis of hexagonal lanthanum germanate apatites through site selective isovalent doping with yttrium”, Mater. Res. Bull., 43, 2509-2513 (2008). 5 Celerier, S., Laberty, C., Ansart, F., “New chemical route based on sol-gel process for the synthesis of oxyapatite La9.33SiO6O26”, Ceramics International, 32, 271-276 (2006). 6 Sansom, J.E.F., Najib, A., Slater, P.R., “Oxide ion conductivity in mix Si/Ge-based apatite-type systems”, Solid State Ionics, 175, 353-355 (2004). 7 Sansom, J.E.H., Kendrick, E., Tolchard, J.R., “A comparison of the effect of rare earth vs. Si site doping on the conductivities of apatite-type rare earth silicates”, J. Solid State Electrochem., 10, 562-568 (2006). 8 Vincent, A., Savignat, S.B., Gervais, F., “Elaboration and ionic conduction of apatite-type lanthanum silicates doped with Ba, La10-xVx(SiO4)6O3-x/2 with x=0.25-2”, J. Eur. Ceram. Soc., 27, 1187-1192 (2007). 9 Abram, E.J., Sinclair, D.C., West, A.R., “A novel enhancement of ionic conductivity in the cation-deficient apatite La9.33(SiO4)6O2”, J.Mater. Chem., 11, 1978-1979 (2001). 10 Nakayama, S., Higuchi, M., “Electrical properties of apatite-type oxide ionic conductors RE9.33(SiO4)6O2(RE=Pr, Nd and Sm) single crystals”, J. Mater. Sci. Lett., 20, 913-915 (2001). 11 Nakayama, S., Kageyama, T., Aono, H., Sadaoka, Y., “Ionic conductivity of lanthanoid silicates, La10(SiO4)6O3(Ln=La, Nd, Sm, Gd, Dy, Y, Er and Yb)”, J. Mater. Chem., 5 (11), 1801-1805 (1995). 12 Masubuchi, Y., Higuchi, M., “Preparation of apatite-type La9.33(SiO4)6O2 oxide ion conductor by alcoxide-hydrolysis”, J. Alloys Compounds, 408-412, 641-644 (2006). 13 Tao, S.W., Irvine, J.T.S., “Preparation and characterization of apatite-type lanthanum silicates by a sol-gel process”, Mater. Res. Bull., 36, 1245-1258 (2001). 14 Nakayama, S., Sakamoto, M., “Electrical properties of new type high oxide ion conductor RE10Si6O27 (RE=La, Nd, Sm, Gd, Dy)”, J. Eur. Ceram. Soc. 18 (10), 1413 (1998). 15 Nakayama, S., Sakamoto, M., Higuchi, M., “Ionic conductivities of apatite-type Lax(GeO4)6O1.5x-12 (x=8-9.33)”, J. Mater. Sci. Lett., 20, 1627-1629 (2001). 16 Nakayama, S., Higuchi, M., “Electrical properties of apatite-type oxide ion conductor RE9.33(SiO4)6O2 (RE=Pr, Nd, and Sm) single crystals”, J. Mater. Sci. Lett., 20, 913-915 (2001). 17 Yuan, W.H., Gu, Y.P., Li, L., “Synthesis and ionic conduction of cation-deficient apatite La9.33-2x/3MxSi6O26 doped with Mg, Ca, Sr”, Chin. J. Chem. Eng., 16 (3), 488-491 (2008). |