以葡萄糖、丙烯酰胺和硝酸铈铵为原料, 采用水热法制备出大比表面的介孔CeO2. 研究了铈离子价态、原料组成、 水热处理温度和时间以及原料的加入方式等条件对样品性能的影响, 并运用XRD, FT-IR, N2吸脱附和TG-DTG等手段对样品进行了表征. 结果表明, 铈离子价态由三价到四价可使介孔CeO2的比表面有较大的增加. 单独采用葡萄糖(或丙烯酰胺)和硝酸铈铵为原料所制样品的比表面较小, 而当原料组成为葡萄糖、丙烯酰胺和硝酸铈铵时可制得比表面较大的介孔CeO2, 水热处理时间和原料的加入方式对介孔CeO2的性能有一定的影响, 150 ℃水热处理2 d可获得比表面为162 m2 · g-1 的介孔CeO2.
参考文献
| [1] | Zhang J H;Yang Y Q;Shen J M;Wang J A .Mesostructured CeO2 and Pd/CeO2 nanophases:templated synthesis,crystalline structure and catalytic properties[J].Journal of Molecular Catalysis A:Chemical,2005,237:182. |
| [2] | Song Xiaolan,Jiang Nan,Li Yukun,Xu Dayu,Qiu Guanzhou.Synthesis and Characterization of Y-Doped Mesoporous CeO2 Using A Chemical Precipitation Method[J].稀土学报（英文版）,2007(04):428-433. |
| [3] | FENG, Sheng-Sheng,GU, Ying-Ying,LI, Jin-Lin,SONG, Feng-Xuan.Preparation and Characterization of Mesoporous Ce0.5Zr0.5O2 Mixed Oxide[J].中国化学(英文版),2007(10):1499-1502. |
| [4] | Mitsunori Yada;Hirohumi Kitamura;Akira Ichinose;Masato Machida;Tsuyoshi Kijima .Mesoporous Magnetic Materials Based on Rare Earth Oxides[J].Angewandte Chemie International Edition,1999(23):3506-3510. |
| [5] | Sinha A K;Suzuki K .Preparation and characterization of novel mesoporous ceria-titania[J].Journal of Physical Chemistry B,2005,109:1708. |
| [6] | 赵旭,罗来涛,刘成文,李茂康.模板剂和制备条件对介孔CeO2材料性能的影响[J].化学研究与应用,2007(08):858-862. |
| [7] | 杨儒,刘建红,李敏.非表面活性剂合成CeO2介孔材料[J].中国稀土学报,2004(06):739-745. |
| [8] | Gu Yingying,Feng Shengsheng,Li Jinlin,Gu Xiangkui,Wang Manjuan.Preparation of Mesoporous Ce0.5 Zr0.5 O2 Mixed Oxide by Hydrothermal Templating Method[J].稀土学报（英文版）,2007(06):710-714. |
| [9] | Yamamoto S.;Kakihan M. .A polymer complex solution route to the low-temperature synthesis of tetragonal Zr_(0.88)Ce_(0.12)O_2 with a reduced amount of organic substance[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):81-86. |
| [10] | Suzuki K;Sinha A K .Monodisperse,bimodal mesoporous ceria catalysts and adsorbents for air purification[J].Journal of Materials Chemistry,2007,17:2547. |
| [11] | Avelino Corma;Pedro Atienzar;Hermenegildo Garcia;Jean-Yves Chane-Ching .Hierarchically mesostructured doped CeO2 with potential for solar-cell use[J].Nature materials,2004(6):394-397. |
| [12] | Hung I M;Wang H P;Lai W H;Fung K Z Hon M H .Preparation of mesoporous cerium oxide templated by tri-block copolymer for solid oxide fuel cell[J].Electrochimica Acta,2004,50:745. |
| [13] | 赵文宽,孙育斌,马庆华,方佑龄.中孔二氧化钛的合成和表征[J].催化学报,1999(03):375-377. |
| [14] | 包南,孙剑,谢晴,马志会.PEG辅助纳米TiO2的可控制备及其光催化活性[J].传感技术学报,2006(05):2354-2358. |
| [15] | 郑金玉,丘坤元,危岩.有机小分子模板法合成二氧化钛中孔材料[J].高等学校化学学报,2000(04):647-649. |
| [16] | Ellis AV.;Wilson MA. .Carbon exchange in hot alkaline degradation of glucose[J].The Journal of Organic Chemistry,2002(24):8469-8474. |
| [17] | Yang BY.;Montgomery R. .ALKALINE DEGRADATION OF GLUCOSE - EFFECT OF INITIAL CONCENTRATION OF REACTANTS[J].Carbohydrate research,1996(1):27-45. |
| [18] | Sun C W;Sun J;Xiao G L;Zhang H R Qiu X P Li H Chen L Q .Mesoscale organization of nearly monodisperse flowerlike ceria microspheres[J].Journal of Physical Chemistry B,2006,110:13445. |
| [19] | Oikawa M;Fujihara S .Crystal growth of Ce2O(CO3)2 @ H2O in aqueous solutions:film formation and samarium doping[J].Journal of Solid State Chemistry,2005,178:2036. |
| [20] | Iwakura Y;Imai Y;Yagi K .Preparation of highly branched graft copolymers by the ceric ion method[J].Journal of Polymer Science Part A:Polymer Chemistry,1968,6:801. |
| [21] | Bumajdad A;Zaki MI;Eastoe J;Pasupulety L .Characterization of nano-cerias synthesized in microemulsions by N-2 sorptiometry and electron microscopy[J].Journal of Colloid and Interface Science,2006(2):501-508. |
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