The precursor of nanocrystalline ZrO2 was synthesized by solid-state reaction at low heat using ZrOCl2·8H2O,and Na2CO3·10H2O as raw materials.The nanocrystalline ZrO2 was obtained by calcining the precursor.The precursor and its calcined products were characterized using TG/DTA,FT-IR,XRD,and SEM.The results showed that the precursor dried at 353 K was a zirconyl carbonate compound.When the precursor was calcined at 673 K for 150 min,highly crystallization ZrO2 with tetragonal structure (space group P42/nmc (137)) was obtained with a crystallite size of 24 nm.However,when the precursor was calcined at 1023 K for 150 min,highly crystallization ZrO2 with monoclinic structure (space group P21/c (14)) was obtained with a crystallite size of 20 nm.The mechanism and kinetics of the thermal process of the precursor were studied using DTA and XRD techniques.Based on the Kissinger and Arrhenius equation,the values of the activation energies associated with the thermal process of the precursor were determined to be 26.80 and 566.73 kJ·mol-1 for the first and third steps,respectively.The mechanism of ZrO2 phase transition from tetragonal to monoclinic structure is the random nucleation and growth of nuclei reaction.
参考文献
| [1] | Tanabe K .Surface and catalytic properties of ZrO2[J].Materials Chemistry and Physics,1985,13:347. |
| [2] | Yamaguchi T .Application of ZrO2 as a catalyst and a catalyst support[J].Catalysis Today,1994,20:199. |
| [3] | Guo GY;Chen YL .A nearly pure monoclinic nanocrystalline zirconia[J].International Journal of Quantum Chemistry,2005(5):1675-1682. |
| [4] | Manicone PF;Rossi-Iommetti P;Raffaelli L .An overview of zirconia ceramics: Basic properties and clinical applications.[J].Journal of dentistry,2007(11):819-826. |
| [5] | Corma A .Inorganic solid acids and their use in acid-catalyzed hydrocarbon reactions[J].Chemical Reviews,1995,95:559. |
| [6] | Chan K.K;Browstein A.M .Ceramic membranes growth prospects and opportunities[J].Ceramic Bulletin,1991,70:703. |
| [7] | Chan K.S;Chauh G.K;Jaenicke S .Preparation of stable,high surface area zirconia[J].Journal of Materials Science Letters,1994,13:1579. |
| [8] | Shojai F;Antyla T.M .Monoclinic zirconia microfiltration membranes:preparation and characterization[J].Journal of Porous Materials,2001,8:129. |
| [9] | Chen DY;Jordan E;Gell M .Thermal and crystallization behavior of zirconia precursor used in the solution precursor plasma spray process[J].Journal of Materials Science,2007(14):5576-5580. |
| [10] | Garcia E;Miranzo P;Soltani R;Coyle T.W .Microstructure and thermal behavior of thermal barrier coatings[J].Journal of Thermal Spray Technology,2008,17:478. |
| [11] | Fergus J.W .Electrolytes for solid oxide fuel cells[J].Journal of Power Sources,2006,162:30. |
| [12] | Wilk G.D;Wallace R.M .Stable zirconium silicate gate dielectrics deposited directly on silicon[J].Applied Physics Letters,2000,76:112. |
| [13] | De la Rosa-Cruz E.;Salas P.;Castano VM.;Hernandez JM.;Diaz-Torres LA. .Evidence of non-radiative energy transfer from the host to the active ions in monoclinic ZrO2 : Sm3+[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,2001(14):L83-L86. |
| [14] | Heshmatpour F;Aghakhanpour R.B .Synthesis and characterization of nanocrystalline zirconia powder by simple sol-gel method with glucose and fructose as organic additives[J].Powder Technology,2011,205:193. |
| [15] | Oliveira A.P;Toren M.L .The influence of precipitation variables on zirconia powder synthesis[J].Powder Technology,2001,119:181. |
| [16] | Ray J.C;Saha C.R;Pramanik P .Stabilized nanoparticles of metastable ZrO2 with Cr3+/Cr4+ cations:preparation from a polymer precursor and the study of the thermal and structural properties[J].Journal of the European Ceramic Society,2002,22:851. |
| [17] | Peshev P.;Stambolova I.;Vassilev S.;Stefanov P.;Blaskov V.;Starbova K.;Starbov N. .Spray pyrolysis deposition of nanostructured zirconia thin films[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2003(1):106-110. |
| [18] | Sekulic A.;Stubicar M.;Furic K. .RAMAN STUDY OF PHASE TRANSITIONS IN PURE AND ALLOYED ZIRCONIA INDUCED BY BALL-MILLING AND A LASER BEAM[J].Journal of Molecular Structure,1997(0):275-279. |
| [19] | Chang Q.B;Zhou J.E;Wang Y.Q;Meng G.Y .Preparation and characterization of unique zirconia crystals within pores via a sol-gel-hydrothermal method[J].Advanced Powder Technology,2009,20:371. |
| [20] | Piticescu R;Monty C;Millers D .Hydrothermal synthesis of nanostructured zirconia materials:present state and future prospects[J].Sensors and Actuators B:Chemical,2005,109:102. |
| [21] | Su Caili. .Synthesis of isobutene from synthesis gas over nanosize zirconia catalysts[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2000(1):81-89. |
| [22] | Drozdz-Ciesla E;Malecki A;Jajko B .Mechanism of thermal decomposition of zirconyl oxalate ZrOC2O4[J].Journal of thermal analysis and calorimetry,2008(3):939-944. |
| [23] | Purohit RD;Saha S;Tyagi AK .Combustion synthesis of nanocrystalline ZrO2 powder: XRD, Raman spectroscopy and TEM studies[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2006(1/3):57-60. |
| [24] | Nitsche R;Rodewald M;Skandan G;Fuess H and Hahn H .HRTEM study of nanocrystalline zirconia powders[J].Nano-Structured Materials,1996,7:535. |
| [25] | Salavati-Niasari M;Dadkhah M;Davar F .Synthesis and characterization of pure cubic zirconium oxide nanocrystals by decomposition of bis-aqua,tris-acetylacetonato zirconium(Ⅳ)nitrate as new precursor complex[J].Inorganica Chimica Acta,2009,362:3969. |
| [26] | Rezaei M;Alavi S.M;Sahebdelfar S;Yan Z.F .Tetragonal nanocrystalline zirconia powder with high surface area and mesoporous structure[J].Powder Technology,2006,168:59. |
| [27] | Wu W.W;Li S.S;Xiang F;Liao S Wu X.H .Preparation of new sunscreen materials Ce1-xZnxO2-x via solid-state reaction at room temperature and study on their properties[J].Rare Metals,2010,29:149. |
| [28] | Wu X.H;Wu W.W;Liu C;Li S.S Liao S and Cai J.C .Synthesis of layered sodium manganese phosphate via low-heating solid-state reaction and its properties[J].Chinese Journal of Chemistry,2010,28:2394. |
| [29] | Kissinger H.E .Reaction kinetics in differential thermal analysis[J].Analytical Chemistry,1957,29:1702. |
| [30] | Wu, X.;Wu, W.;Li, S.;Cui, X.;Liao, S. .Kinetics and thermodynamics of thermal decomposition of NH _4NiPO_4?6H_2O[J].Journal of thermal analysis and calorimetry,2011(3):805-812. |
| [31] | Avrami M .Kinetics of phase change.I general theory[J].Journal of Chemical Physics,1939,7:1103. |
| [32] | Avrami M .Kinetics of phase change.Ⅱ transformation-time relations for random distribution of nuclei[J].Journal of Chemical Physics,1940,8:212. |
| [33] | Avrami M .Granulation,phase change,and microstructure kinetics of phase change.Ⅲ[J].Journal of Chemical Physics,1941,9:177. |
| [34] | Musi(c)S;Popovi(c)S;Maljkovi(c)M;Drag(c)evi(c)D .Influence of synthesis procedure on the formation and properties of zinc oxide[J].Journal of Alloys and Compounds,2002,347:324. |
| [35] | Li Z.J;Shen X.Q;Feng X;Wang P.Y and Wu Z.S .Non-isothermal kinetics studies on the thermal decomposition of zinc hydroxide carbonate[J].Thermochimica Acta,2005,438:102. |
| [36] | Takei T;Kameshima Y;Yasumori A;Okada K .Crystallization kinetics of mullite from Al2O3-SiO2 glasses under non-isothermal conditions[J].Journal of the European Ceramic Society,2001,21:2487. |
| [37] | Johnson B.R;Kriven W.M;Schneider J .Crystal structure development during devitrification of quenched mullite[J].Journal of the European Ceramic Society,2001,21:2541. |
| [38] | Boonchom B;Danvirutai C .Kinetics and thermodynamics of thermal decomposition of synthetic AlPO4.2H2O[J].Journal of Thermal Analysis and Calorimetry,2009,98:771. |
| [39] | Liu, C.;Wu, X.;Wu, W.;Cai, J.;Liao, S. .Preparation of nanocrystalline LiMnPO4 via a simple and novel method and its isothermal kinetics of crystallization[J].Journal of Materials Science,2011(8):2474-2478. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%