Preparation of Mesoporous Ce0.5 Zr0.5 O2 Mixed Oxide by Hydrothermal Templating Method

稀土学报(英文版), 2007, 25(6): 710-714.

^1, , ^2, , ^3, , ^4, , ^5,

1.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

2.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

3.Key Laboratory of Cataly sis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,Hubei Province,South-Central University for Nationalities,Wuhan 430074,China

4.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

5.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

基金项目: Open Fund of Key Laboratory of Catalysis Materials and Science of Hubei Province(CHCL0501)

Preparation of Mesoporous Ce0.5 Zr0.5 O2 Mixed Oxide by Hydrothermal Templating Method

Gu Yingying ^1, , Feng Shengsheng ^2, , Li Jinlin ^3, , Gu Xiangkui ^4, , Wang Manjuan ^5,

1.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

2.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

3.Key Laboratory of Cataly sis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education,Hubei Province,South-Central University for Nationalities,Wuhan 430074,China

4.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

5.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China

Keywords： mesoporous

Mesoporous Ce0.5Zr0.5O2 mixed oxide with high specific surface area was synthesized under basic condition in the presence of non-ionic surfactant PEG-4000.The effect of synthesis conditions, such as synthesis temperature and the molar ratio of PEG-4000/([Ce]+[Zr]), on specific surface area were investigated.The products were characterized by transmission electron microscopy, powder X-ray diffraction, and nitrogen adsorption-desorption measurements, respectively.The results showed that synthesis temperature and the molar ratio of PEG-4000/([Ce]+[Zr]) had great influence on specific surface area.Under the optimum synthesis conditions, the prepared Ce0.5Zr0.5O2 mixed oxide presented cubic fluorite-type structure and possessed high surface area of 148.6 m2·g-1 with wormlike pores.

参考文献

[1]	Masakuni O .Role of cerium-zirconium mixed oxides as catalysts for car pollution:A short review1[J].Journal of Alloys and Compounds,1998,275-277:886.
[2]	Toshiyuki M;Tetsuya O;Machida K I;Adochi G Y .Preparation of ceria-zirconia sub-catalysts for automotive exhaust cleaning[J].Journal of Alloys and Compounds,2000,303-304:49.
[3]	Shinya O Y M;Takahisa O;Noriya I;Haruo K .Oxygen release behavior of CeZrO4 powders and appearance of new compounds k and t@[J].Journal of Solid State Chemistry,1998,138:47.
[4]	Hori C E;Permana H;Simon Ng K Y;Brenner A More K Rahmoeller K M Belton D .Thermal stability of oxygen storage properties in a mixed CeO2-ZrO2 system[J].Applied Catalysis B:Environmental,1998,16:105.
[5]	Kaspar J.;Fornasiero P.;Baiducci G.;Di Monte R.;Hickey N.;Sergo V. .Effect of ZrO2 content on textural and structural properties of CeO2-ZrO2 solid solutions made by citrate complexation route[J].Inorganica Chimica Acta,2003(0):217-226.
[6]	张顺海,蒋平平,郭耘,郭杨龙,王筠松,吴东方,卢冠忠.氧化共沉淀法制备纳米级铈锆固溶体[J].中国稀土学报,2003(z2):64-66.
[7]	Colón G;Valdivieso F;Pijolat M;Baker R T Calvino J J Bernal S .Textural and phase stability of CexZr1-xO2 mixed oxides under high temperature oxidizing conditions[J].Catalysis Today,1999,50:271.
[8]	冯长根,胡玉才,王丽琼.铈锆氧化物固溶体对全钯三效催化剂性能的影响[J].应用化学,2003(02):159-162.
[9]	Luo M F;Zheng X M .Redox behaviour and catalytic properties of Ce0.5Zr0 5O2-supported palladium catalysts[J].Applied Catalysis A:General,1999,189:15.
[10]	Fornasiero P;Balducci G;Monte R D;Kapar J Sergo V Gubitosa G Ferrero A Graziani M .Modification of the redox behaviour of CeO2 induced by structural doping with ZrO2[J].Journal of Catalysis,1996,164:173.
[11]	翟彦青,刘源,王丽.超临界干燥法制备铈锆氧化物固溶体[J].内蒙古工业大学学报(自然科学版),2001(04):245-249.
[12]	龙志奇,崔梅生,朱兆武,彭新林,黄小卫.铈锆复合氧化物的研究、应用与展望[J].稀有金属快报,2007(01):40-44.
[13]	Trovarelli A.;Llorca J.;Deleitenburg C.;Dolcetti G.;Kiss JT.;Zamar F. .NANOPHASE FLUORITE-STRUCTURED CEO2-ZRO2 CATALYSTS PREPARED BY HIGH-ENERGY MECHANICAL MILLING - ANALYSIS OF LOW-TEMPERATURE REDOX ACTIVITY AND OXYGEN STORAGE CAPACITY[J].Journal of Catalysis,1997(2):490-502.
[14]	Letichevsky S;Tellez CA;de Avillez RR;da Silva MIP;Fraga MA;Appel LG .Obtaining CeO2-ZrO2 mixed oxides by coprecipitation: role of preparation conditions[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2005(3/4):203-210.
[15]	阎忠君,王京刚,文明芬,陈靖,顾永万.不同沉淀剂对铈锆复合稀土氧化物性能的影响[J].北京化工大学学报（自然科学版）,2005(03):9-12.
[16]	冯长根,张江山,王亚军.铈锆氧化物纳米粉的合成及催化性能研究[J].中国稀土学报,2004(04):551-556.
[17]	古映莹,冯圣生,李金林,宋丰轩,秦利平.高比表面CexZr1-xO2复合氧化物的制备及表征[J].无机化学学报,2006(09):1623-1627.
[18]	杜玉成,张久兴,何洪.高比表面积纳米结构Ce0.7Zr0.3O2固溶体的模板组装[J].中国稀土学报,2003(z2):44-47.

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Preparation of Mesoporous Ce0.5 Zr0.5 O2 Mixed Oxide by Hydrothermal Templating Method

参考文献