| 双模板法制备具有介孔孔壁的三维有序大孔二氧化铈及其改善的低温还原性能 |
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| 引用本文： | 张晗,张磊,邓积光,刘雨溪,蒋海燕,石凤娟,吉科猛,戴洪兴.双模板法制备具有介孔孔壁的三维有序大孔二氧化铈及其改善的低温还原性能[J].催化学报,2011,32(5):842-852. |
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| 作者姓名： | 张晗 张磊 邓积光 刘雨溪 蒋海燕 石凤娟 吉科猛 戴洪兴 |
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| 作者单位： | 北京工业大学环境与能源工程学院化学化工系; |
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| 基金项目： | 国家自然科学基金(20973017,21077007); 国家高技术研究发展计划(863计划,2009AA063201); 服务北京创新人才项目(00500054R4003); 北京市教委创新团队项目(PHR200907105,PHR201007105)~~ |
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| 摘 要： | 以聚甲基丙烯酸甲酯(PMMA)为硬模板,三嵌段共聚物F127、十六烷基三甲基溴化铵(CTAB)或聚乙二醇(PEG)为软模板剂(表面活性剂),柠檬酸为络合剂,硝酸铈为金属前驱体,采用双模板法成功地合成出具有介孔孔壁的三维有序大孔(3DOM)结构的立方相CeO2样品CeO2-F127,CeO2-CTAB和CeO2-PEG,...
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| 关 键 词： | 双模板法 三维有序大孔 二氧化铈 低温还原性能 蠕虫状介孔孔壁:表面活性剂 |
Dual-Templating Preparation and Enhanced Low-Temperature Reductibility of Three-Dimensionally Ordered Macroporous Ceria with Mesoporous Walls |
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| ZHANG Han,ZHANG Lei,DENG Jiguang,LIU Yuxi,JIANG Haiyan,SHI Fengjuan,JI Kemeng,DAI Hongxing.Dual-Templating Preparation and Enhanced Low-Temperature Reductibility of Three-Dimensionally Ordered Macroporous Ceria with Mesoporous Walls[J].Chinese Journal of Catalysis,2011,32(5):842-852. |
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| Authors: | ZHANG Han ZHANG Lei DENG Jiguang LIU Yuxi JIANG Haiyan SHI Fengjuan JI Kemeng DAI Hongxing |
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| Institution: | ZHANG Han,ZHANG Lei,DENG Jiguang,LIU Yuxi,JIANG Haiyan,SHI Fengjuan,JI Kemeng,DAI Hongxing* Department of Chemistry and Chemical Engineering,College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China |
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| Abstract: | Three-dimensionally ordered macroporous(3DOM)ceria with mesoporous walls and cubic crystal structures were prepared with polymethyl methacrylate(PMMA)as a hard template and triblock copolymer Pluronic F127(EO106PO70EO106),cetyltrimethylammonium bromide(CTAB),or poly(ethylene glycol)(PEG)as a soft template.Citric acid was used as a complexing agent and cerium nitrate was used as a metal precursor.The 3DOM CeO2 samples were characterized by numerous analytical techniques.The as-fabricated CeO2 samples had a 3... |
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| Keywords: | dual-templating preparation method three-dimensionally ordered macropore ceria low-temperature reducibility wormhole-like mesoporous wall surfactant |
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