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采用改进的柠檬酸络合法合成了Ce-Al-O两相氧化物,并运用X射线衍射、X射线光电子能谱、27A1魔角核磁、N2吸附-脱附和储氧量测定等手段对样品进行了表征.结果表明,两相共生时CeO2和γ-Al2O3间发生了强相互作用,相互调变了彼此的存在状态和微观结构,抑制了两物相晶粒的长大,从而提高了γ-Al2O3的高温水热老化稳定性,并使Ce-A1-O体系两相氧化物的储氧能力比单相的纳米CeO2提高了2~3倍,即使在高温水热处理后样品仍保持很高的储氧性能.

参考文献

[1] Yao H C;Yu Yao Y F .[J].Journal of Catalysis,1984,86:254.
[2] Miki T;Ogawa T;Ueno A;Matsuura S Sato M.[J].CHEMISTRY LETTERS,1988:565.
[3] Shyu J Z;Weber W H;Gandhi H S .[J].Journal of Physical Chemistry,1988,92:4964.
[4] Yao MH.;Kunz FW.;Hoost TE.;Baird RJ. .AN XRD AND TEM INVESTIGATION OF THE STRUCTURE OF ALUMINA-SUPPORTED CERIA-ZIRCONIA[J].Journal of Catalysis,1997(1):67-74.
[5] Di Monta R;Fornasiero P;Kaspar J;Rumori P,Gubitosa G Graziani M .[J].Applied Catalysis B:Environmental,2000,24:157.
[6] Di Monte R;Fomasiero P;Kagpar J;Graziani M.Gatica J M,Bemal S,G6mez-Herrero A.[J].Chemistry Communications,2000:2167.
[7] Fernandez-Garcya M;Martynez-Arias A;Iglesias;Juez A,Belver C,Hungrya A B,Conesa J C,Soda J .[J].Journal of Catalysis,2000,194:385.
[8] Djuricic B;Pickering S;McGarry D;Tamuyser P.Thomas P .[J].Journal of Materials Science,1999,34:1911.
[9] Sasikala R;Sudarsan V;Kulshreshtha S K .[J].Journal of Solid State Chemistry,2002,169:113.
[10] 祁晓岚,李斌,李士杰,刘希尧,林炳雄.BEA/MOR两相共生分子筛的酸性及其催化性能[J].催化学报,2006(03):228-232.
[11] 赵峰,刘英骏,李能,林炳雄.CuCrO2-CuCr2O4两相共生体系的合成及其对CO-NO反应催化性能的研究[J].分子催化,2001(03):161-164.
[12] 赵峰,李国英,李能,刘英骏,林炳雄.CuCrO2和CuCr2O4间相互作用对体系结构及催化性能的影响[J].催化学报,2003(01):11-16.
[13] Li N;Yan X M;Zhang W J;Lin B X .[J].Journal of Power Sources,1998,74:255.
[14] Li N;Xu X;Luo D;Wu Y S,Li S J.Lin B X .[J].Journal of Power Sources,2004,126:229.
[15] 范闽光,李斌,张飞跃,方金龙,李望良,邢建民,刘自力.镧改性的CuHY分子筛中铜离子的分布及其对吸附脱硫性能的影响[J].催化学报,2009(10):1041-1048.
[16] Roisnel T;Rodriguez-Carvajal J .[J].Materials Science Forum,2001,378(381):118.
[17] Dekeijser T H;Lemford J I;Mittermeijer E J;Vogels A B P .[J].Journal of Appl Cryst Sci,1982,15:308.
[18] Moulder J F;Stickle W F;Sobol P E;Bomben K D .[A].Photoelectron Spec.troscopy.den Prairie:Perkin-Elmer Corp,1992,54:142.
[19] Shannon R D .[J].Acta Crystallographica Section A:Foundations of Crystallography,1976,32:751.
[20] Di Monte, R;Fornasiero, P;Desinan, S;Kaspar, J .Thermal stabilization of CexZr1-xO2 oxygen storage promoters by addition of Al2O3: Effect of thermal aging on textural, structural, and morphological properties[J].Chemistry of Materials,2004(22):4273-4285.
[21] Engler B;Koberstein E;Schubert P .[J].Applied Catalysis,1989,48:71.
[22] Wang J A;Bokhimi X;Morales A;Novaro O,Lopez T,Gomez R .[J].Journal of Physical Chemistry B,1999,13:299.
[23] Miller J M;Lakshmi L J .[J].Journal of Physical Chemistry B,1998,102:6465.
[24] Hu W;Su Y C;Chen L;Yue Y Li Sh J,Deng F Chin J .[J].Magn Reson,2007,24:17.
[25] Damyanova S;Perez C A;Schmal M;Bueno J M C .[J].Applied Catalysis A:General,2002,234:271.
[26] Damyanova S;Bueno J M C .[J].Applied Catalysis,2003,253:135.
[27] Du L S;Stebbins J F;Lu C Q .[J].Journal of Physical Chemistry B,2004,108:3681.
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