| 碳酸铵水解法制备耐高温介孔CeO2材料 |
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| 引用本文： | 陈山虎,曹毅,兰丽,赵明,史忠华,龚茂初,陈耀强.碳酸铵水解法制备耐高温介孔CeO2材料[J].无机化学学报,2013,29(10):2231-2238. |
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| 作者姓名： | 陈山虎 曹毅 兰丽 赵明 史忠华 龚茂初 陈耀强 |
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| 作者单位： | 四川大学化学学院,绿色化学与技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金(No.20803049,21173153)资助项目 |
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| 摘 要： | 以H2O2为氧化剂,分别以传统沉淀法(以氨水为沉淀剂)和碳酸铵水解法制备了CeO2材料。采用傅里叶变换红外(FTIR)、拉曼光谱(Raman)、热重-差示扫描分析(TG-DTA)及X光电子能谱(XPS)等手段对沉淀前躯体及其分解过程进行了研究。结果表明,在碳酸铵水解法制备的前躯体中含有O22-,CO32-和OH-物种,而在水解过程中,碳酸根会逐渐被氢氧根取代。虽然两者方法制备的沉淀的化学成分基本一样,但碳酸铵水解法改变了沉淀颗粒的堆积方式,因此制备的CeO2具有更好的抗高温老化性能和还原性能。经过900℃焙烧3 h后,比表面仍有27 m2·g-1。
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| 关 键 词： | 水解法 传统沉淀法 耐高温 氧化还原性能 |
| 收稿时间： | 1/7/2013 12:00:00 AM |
| 修稿时间： | 2013/3/19 0:00:00 |
Preparation of Mesoporous CeO2 with High Thermal Stability by Ammonium Carbonate Hydrolysis Method |
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| CHEN Shan-Hu,CAO Yi,LAN Li,ZHAO Ming,SHI Zhong-Hu,GONG Mao-Chu and CHEN Yao-Qiang.Preparation of Mesoporous CeO2 with High Thermal Stability by Ammonium Carbonate Hydrolysis Method[J].Chinese Journal of Inorganic Chemistry,2013,29(10):2231-2238. |
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| Authors: | CHEN Shan-Hu CAO Yi LAN Li ZHAO Ming SHI Zhong-Hu GONG Mao-Chu and CHEN Yao-Qiang |
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| Institution: | Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China;Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China |
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| Abstract: | |
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| Keywords: | hydrolysis method conventional precipitation high thermal stability redox properties |
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