Actas de congresos
Formation Of Oxysulfide Lno 2s 2 And Oxysulfate Lno 2so 4 Phases In The Thermal Decomposition Process Of Lanthanide Sulfonates (ln = La, Sm)
Registro en:
Journal Of Thermal Analysis And Calorimetry. , v. 107, n. 1, p. 305 - 311, 2012.
13886150
10.1007/s10973-011-1451-7
2-s2.0-84855696904
Autor
MacHado L.C.
De Azeredo M.T.D.
Correa H.P.S.
Do Rosario Matos J.
Mazali I.O.
Institución
Resumen
This study investigates two lanthanide compounds (La 3+ and Sm 3+) obtained in water/ethyl alcohol solutions employing the anionic surfactant diphenyl-4-amine sulfonate (DAS) as ligand. Both sulfonates were characterized through IR, TG/DTG (O 2 and N 2). The thermal treatment of both compounds at 1273 K under air leaves residues containing variable percentages of lanthanide oxysulfide/oxysulfate phases shown by synchrotron high-resolution XRD pattern including the Rietveld analysis. The phase distributions found in the residues evidence the differences in the relative stability of the precursors. © 2011 Akadémiai Kiadó, Budapest, Hungary. 107 1 305 311 Machida, M., Kawamura, K., Ito, K., Ikeue, K., Large-capacity oxygen storage by lanthanide oxysulfate/oxysulfide systems (2005) Chemistry of Materials, 17 (6), pp. 1487-1492. , DOI 10.1021/cm0479640 Machida, M., Kawano, T., Eto, M., Zhang, D., Ikeue, K., Ln dependence of the large-capacity oxygen storage/release property of Ln oxysulfate/oxysulfide systems (2007) Chemistry of Materials, 19 (4), pp. 954-960. , DOI 10.1021/cm062625n Ikeue, K., Kawano, T., Eto, M., Zhang, D., MacHida, M., X-ray structural study on the different redox behaviors of la and Pr oxysulfates/oxysulfides (2008) J Alloys Compd, 451, pp. 338-340. , 10.1016/j.jallcom.2007.04.145 10.1016/j.jallcom.2007.04.145 1:CAS:528:DC%2BD1cXhs1GgsLk%3D Llanos, J., Sanchez, V., Mujica, C., Buljan, A., Synthesis, physical and optical properties, and electronic structure of the rare-earth oxysulfides Ln 2O 2S (Ln = Sm, Eu) (2002) Materials Research Bulletin, 37 (14), pp. 2285-2291. , DOI 10.1016/S0025-5408(02)00936-4, PII S0025540802009364 Llanos, J., Mujica, C., Henriquez, A., Gomez-Romero, P., Molins, E., Structure refinement of samarium monothio oxide (2001) Journal of Alloys and Compounds, 316 (1-2), pp. 90-92. , DOI 10.1016/S0925-8388(00)01510-3 Zhao, F., Yuan, M., Zhang, W., Gao, S., Monodisperse lanthanide oxysulfide nanocrystals (2006) Journal of the American Chemical Society, 128 (36), pp. 11758-11759. , DOI 10.1021/ja0638410 Casari, B.M., Langer, V., Two Ce(SO 4) 2·4H 2O polymorphs: Crystal structure and thermal behavior (2007) Journal of Solid State Chemistry, 180 (5), pp. 1616-1622. , DOI 10.1016/j.jssc.2007.02.017, PII S0022459607000916 Poston Jr., J.A., Siriwardane, R.V., Fisher, E.P., Miltz, A.L., Thermal decomposition of the rare earth sulfates of cerium(III), cerium(IV), lanthanum(III) and samarium(III) (2003) Appl Surf Sci, 214, pp. 83-102. , 10.1016/S0169-4332(03)00358-1 10.1016/S0169-4332(03)00358-1 1:CAS:528:DC%2BD3sXksVWrt7s%3D MacHado, L.C., Marins, A.A.L., Muri, E.J.B., Lacerda, J.A.S., Balthar, V.O., Fulvio, P.F., De Freitas, J.C.C., Reaction products between sodium diphenyl-4-amine sulfonate and hydrated LaCl 3: Thermogravimetric and spectroscopic study (2004) J Therm Anal Calorim, 75, pp. 615-621. , 10.1023/B:JTAN.0000027153.24401.31 10.1023/B:JTAN.0000027153.24401.31 1:CAS:528:DC%2BD2cXisVKjs7c%3D MacHado, L.C., Marins, A.A.L., Muri, E.J.B., Biondo, A., Jdor, M., Mazali, I.O., Complexation of the Fe(III) and Fe(II) sulphates with diphenyl-4-amine barium sulphonate (DAS): Synthesis, thermogravimetric and spectroscopic studies (2009) J Therm Anal Calorim, 97, pp. 289-296. , 10.1007/s10973-009-0259-1 10.1007/s10973-009-0259-1 1:CAS:528: DC%2BD1MXht1OgurvL Young, R.A., (1993) The Rietveld Method, , Oxford: Oxford University Press Larson, A.C., Von Dreele, B., (2000) General Structure Analysis System (GSAS) (Report LAUR 86-748), , Los Alamos National Laboratory Los Alamos Toby, B.H., EXPGUI, a graphical user interface for GSAS (2001) Journal of Applied Crystallography, 34 (2), pp. 210-213. , DOI 10.1107/S0021889801002242 Thompson, P., Cox, D.E., Hastings, J.B., Rietveld refinement of Debye-Scherrer synchrotron X-ray data from Al 2O 3 (1987) J Appl Crystallogr, 20, pp. 79-83. , 10.1107/S0021889887087090 10.1107/S0021889887087090 1:CAS:528: DyaL2sXitVGlsbo%3D Finger, L.W., Cox, D.E., Jephcoat, A.P., A correction for powder diffraction peak asymmetry due to axial divergence (1994) J Appl Crystallogr, 27, pp. 892-900. , 10.1107/S0021889894004218 10.1107/S0021889894004218 1:CAS:528: DyaK2MXisFCnsb0%3D Stephens, P.W., Phenomenological model of anisotropic peak broadening in powder diffraction (1999) Journal of Applied Crystallography, 32 (2), pp. 281-289 Beentjes, P.C.J., Van Den Brand, J., De Wit, J.H.W., Interaction of ester and acid groups containing organic compounds with iron oxide surface (2006) J Adhes Sci Technol, 20, pp. 1-18. , 10.1163/156856106775212396 10.1163/156856106775212396 1:CAS:528:DC%2BD28Xjs12iur0%3D Zhang, H., Wen, X., Wang, Y., Synthesis and characterization of sulfate and dodecylbenzenesulfonate intercalated zinc-iron layered double hydroxides by one-step coprecipitation route (2007) Journal of Solid State Chemistry, 180 (5), pp. 1636-1647. , DOI 10.1016/j.jssc.2007.03.016, PII S002245960700117X Nakanishi, K., Solomon, P.H., (1977) Infrared Absorption Spectroscopy, , Holden-Day San Francisco Bellamy, L.J., (1980) The Infrared Spectra of Complex Molecules, , Chapman and Hall London Braterman, P.S., Xu, Z.P., High affinity of dodecylbenzene sulfonate for layered double hydroxide and resulting morphological changes (2003) J Mater Chem, 13, pp. 268-273. , 10.1039/B207540G 10.1039/b207540g Wang, M., Song, Z.G., Jiang, H., Gong, H., Thermal decomposition of metal methanesulfonates in air (2009) J Therm Anal Calorim, 98, pp. 801-806. , 10.1007/s10973-009-0119-z 10.1007/s10973-009-0119-z 1:CAS:528: DC%2BD1MXhsFGntLfK