A facile,simple and rapid preparation method of cerium orthophosphate was presented.The synthesis of low-crystalline CePO4 occurred upon mixing of cerium (Ⅲ) nitrate and sodium phosphate,and was an exchange-type reaction.The phase composition of the obtained powder was checked by the XRD and FTIR methods,indicating the presence of cerium phosphate.Further investigations on thermal behavior of the synthesized cerium salt had shown that the obtained onhophosphate crystallized at first in rhabdophane-type structure.It convetted to monazite (monoclinic symmetry) during heating at the temperatures of above 600 ℃.Oxidation of Ce3+ to Ce4+ was avoided during the syntheses,as confirmed by the XPS experiments.
参考文献
| [1] | Clavier N;Dacheux N;Podor R .Synthesis, characterization, sintering, and leaching of beta-TUPD/monazite radwaste matrices[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2006(1):220-229. |
| [2] | Podor R;Cuney M;Trung C N .Experimental study of the solid solution between monazite-(La) and (Ca0.5U0 5)PO4[J].Am Miner,1995,80:1261. |
| [3] | Kitaev D B;Volkov Y F;Orlova A I .Orthophosphates of tetravalent Ce,Th,U,Np,and Pu with the monazite structure[J].RADIOCHEMISTRY,2004,46:211. |
| [4] | Bakker K;Hein H;Konings R J M;van der Laan R R Matzke H J van Vlaanderen P .Thermophysical property measurements and ion-implantation studies on CePO4[J].Journal of Nuclear Materials,1998,252:228. |
| [5] | Kijkowska R. .Thermal decomposition of lanthanide orthophosphates synthesized through crystallisation from phosphoric acid solution[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2003(1/2):81-88. |
| [6] | Poitrasson F.;Shepherd TJ.;Chenery S. .Electron microprobe and LA-ICP-MS study of monazite hydrothermal alteration: Implications for U-Th-Pb geochronology and nuclear ceramics [Review][J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society,2000(19):3283-3297. |
| [7] | Fang Y P;Xu A W;Song R Q;Zhang H X You L P Yu J C Liu H Q .Systematic synthesis and characterization of single-crystal lanthanide orthophosphate nanowires[J].J Ant Chem Soc,2003,125:16025. |
| [8] | Kuo D H;Kriven W H;Mackin T J .Control of interfacial properties through fiber coatings:monazite coatings in oxide-oxide composites[J].Journal of the American Ceramic Society,1997,80:2987. |
| [9] | Lewis M H;Tye A;Butler E G;Doleman P A .Oxide CMCs:interphase synthesis and novel fibre development[J].Journal of the European Ceramic Society,2000,20:639. |
| [10] | Davis J B;Marshall D B;Morgan P E D .Monazite-containing oxide/oxide composites[J].J Fur Ceram Soc,2000,20:583. |
| [11] | Agraval D;Hummel F A .The systems Y2O3-P2O5 and Gd2O3-P2O5[J].Journal of the Electrochemical Society,1980,127:1550. |
| [12] | Davis J.B.;Marshall D.B. .Ceramic composites for thermal protection systems[J].Composites, Part A. Applied science and manufacturing,1999(4):483-488. |
| [13] | Boakye E E;Mogilevsky P;Parthasarathy T A;Hay R S Welter J Kerans R J .Monazite coatings on SiC fibers Ⅰ:fiber strength and thermal stability[J].Journal of the American Ceramic Society,2006,89:3475. |
| [14] | Boakye E E;Hay R S;Perty M D .Continuous coating of oxide fiber tows using liquid precursors:monazite coatings on nextel 720TM[J].Journal of the American Ceramic Society,1999,82:2321. |
| [15] | Onoda H.;Nariai H.;Maki H.;Motooka I. .Mechanochemical effects on synthesis of Rhabdophane-type neodymium and cerium phosphates[J].Materials Chemistry and Physics,2003(2):400-404. |
| [16] | Diaz-Guillen J A;Fuentes A F;Gallini S;Colomer M T .A rapid method to obtain nanomelric particles of rhabdophane LaPO4@nH2O by mechanical milling[J].Journal of Alloys and Compounds,2007,427:87. |
| [17] | Hazel A;Ross S D .Forbidden transitions in the infrared spectra of tetrahedral anions,Ⅲ.spectra-structure correlations in perclilorates,sulphates and phosphates of the formula MXO4· Spectrochim[J].Acta,1966,22:1949. |
| [18] | Szczygiel I;Znamierowska T .Phase equilibria in the system CePO4-NaPO3[J].Journal of Thermal Analysis,1991,37:705. |
| [19] | Lucas S;Champion E;Bemache-Assolant D;Leroy G .Rare earth phosphate powders RePO4@nH2O (Re=La,Ce or Y) Ⅱ.Thermal behavior[J].J SolidState Chem,2004,177:1312. |
| [20] | Bregiroux Damien;Audubert Fabienne;Charpentier Thibault .Solid-state synthesis of monazite-type compounds LnPO_4 (Ln = La to Gd)[J].Solid state sciences,2007(5):432-439. |
| [21] | Szczygiel I;Znamierowska T .The synthesis and thermal stability of cerium ultraphosphate CeP5O14[J].Journal of Thermal Analysis,1990,36:2195. |
| [22] | Karpowich L;Wilcke S;Yu R;Harley G;Reimer JA;De Jonghe LC .Synthesis and characterization of mixed-morphology CePO4 nanoparticles[J].International Journal of Quantum Chemistry,2007(3):840-846. |
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