|
|||||
|
|
| 掺杂铁酸盐的制备、结构及其催化分解CO2成C的性能 | |
| 引用本文： | 傅毛生,陈林深,陈诵英.掺杂铁酸盐的制备、结构及其催化分解CO2成C的性能[J].高等学校化学学报,2005,26(12):2279-2283. |
| 作者姓名： | 傅毛生 陈林深 陈诵英 |
| 作者单位： | 1. 浙江大学催化研究所,杭州,310028;南昌航空工业学院环境与化学工程系,南昌,330034 2. 浙江大学分析测试中心,杭州,310028 3. 浙江大学催化研究所,杭州,310028 |
| 摘 要： | 采用混合离子共沉淀法制备掺杂铁酸盐,采用XRD,TGA和H2-TPR等手段对其结构进行了表征,并考察了其直接催化分解CO2成C的性能.研究结果表明,用混合离子共沉淀法能够制备出纳米级晶粒、且为单一尖晶石结构的Cr3+掺杂的NiFe2O4.所掺杂的Cr3+进入NiFe2O4的晶格B位,极大地促进了NiFe2O4在还原氧化过程中结构的稳定性,分解CO2反应后,NiFe2O4的结构易恢复,从而明显地提高了其分解CO2成C反应的循环寿命(35次以上)和积炭量(25.3%). |
| 关 键 词： | NiFe2O4 掺杂 氧缺位 CO2分解 |
| 文章编号： | 0251-0790（2005）12-2279-05 |
| 收稿时间： | 10 19 2004 12:00AM |
| 修稿时间： | 2004-10-19 |
Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon |
|
| FU Mao-Sheng,CHEN Lin-Shen,CHEN Song-Ying.Preparation, Structure of Doped Ferrite and Its Performance of Decomposition of Carbon Dioxide to Carbon[J].Chemical Research In Chinese Universities,2005,26(12):2279-2283. | |
| Authors: | FU Mao-Sheng CHEN Lin-Shen CHEN Song-Ying |
| Institution: | 1. Institute of Catalysis, Zhejiang University, Hangzhou 310028, China ; 2. Department of Environmental and Chemical Engineering, Nanchang Institute of Aeronautic Technology, Nanchang 330034, China; Measurement and Analysis Center, Zhejiang University, Hangzhou 310028, China |
| Abstract: | The structure of the doped ferrite prepared by mixing ions co-precipitation was characterized by XRD,TGA and H_(2)-TPR,and the catalytic performance of CO_(2) decomposition to C with its hydrogen-reduced Cr~(3+) doped ferrite was evaluated.The results show that NiFe_(2)O_(4) doped Cr~(3+) has a single spinel structure and nano-size crystal.The results also indicate that the introduction of Cr~(3+) into B site of the spinel structure of NiFe_(2)O_(4) could enhance its structure stability remarkably during the process of reaction cycles of H_(2) reduction and CO_(2)decomposition,as well as did decrease greatly the collapse rate of its structure,resulting in prolonging the reaction cycle life(over 35 cycles) and increasing carbon deposit(about 25.3%). |
| Keywords: | NiFe2O4 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
| 点击此处可从《高等学校化学学报》浏览原始摘要信息 | |
| 点击此处可从《高等学校化学学报》下载免费的PDF全文 | |