| 络合试剂对溶胶凝胶燃烧法合成LaCoO3的物化性能及对VOCs催化净化效果的影响 |
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| 引用本文： | 魏笑峰,肖益鸿,蔡国辉,郑 勇,刘立哲,魏可镁.络合试剂对溶胶凝胶燃烧法合成LaCoO3的物化性能及对VOCs催化净化效果的影响[J].福州大学学报(自然科学版),2015,43(6):834-838. |
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| 作者姓名： | 魏笑峰 肖益鸿 蔡国辉 郑 勇 刘立哲 魏可镁 |
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| 作者单位： | 福州大学化肥催化剂国家工程研究中心, 福建 福州 350002,福州大学化肥催化剂国家工程研究中心, 福建 福州 350002,福州大学化肥催化剂国家工程研究中心, 福建 福州 350002,福州大学化肥催化剂国家工程研究中心, 福建 福州 350002,福州大学化肥催化剂国家工程研究中心, 福建 福州 350002,福州大学化肥催化剂国家工程研究中心, 福建 福州 350002 |
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| 基金项目： | 福建省科技重大专项(批准号2014H6015)和福建省教育厅产学研项目(JA12023) 资助. |
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| 摘 要： | 分别以甘氨酸、柠檬酸和丙烯酰胺辅助柠檬酸为络合试剂,采用溶胶凝胶燃烧法合成LaCoO_3复合氧化物,并对它们进行XRD、BET、SEM及O_2-TPD分析.实验结果表明,三种络合剂制备得到的产物均为纯钙钛矿LaCoO_3相;丙烯酰胺辅助柠檬酸溶胶凝胶燃烧法制得的LaCoO_3颗粒均匀且较小,比表面积最大,其O_2-TPD曲线中的峰面积最大,对苯完全催化氧化效果最好.
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| 关 键 词： | 挥发性有机物 催化燃烧 钙钛矿 溶胶凝胶燃烧法 络合试剂 丙烯酰胺辅助柠檬酸 |
| 修稿时间： | 4/2/2015 12:00:00 AM |
Influence of complexing agents by sol-gel combustion synthesis on the structural and catalytic properties of LaCoO3 perovskite for benzene total oxidation |
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| WEI Xiaofeng,XIAO Yihong,CAI Guohui,ZHENG Yong,LIU Lizhe and WEI Kemei.Influence of complexing agents by sol-gel combustion synthesis on the structural and catalytic properties of LaCoO3 perovskite for benzene total oxidation[J].Journal of Fuzhou University(Natural Science Edition),2015,43(6):834-838. |
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| Authors: | WEI Xiaofeng XIAO Yihong CAI Guohui ZHENG Yong LIU Lizhe and WEI Kemei |
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| Institution: | National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China,National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China and National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, Fujian 350002, China |
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| Abstract: | LaCoO3 perovskite-type mixed oxides were prepared by sol-gel combustion method. Glycine, citrate, and acrylamide assisted polymeric citrate were used as complexing agents, respectively. The catalysts were characterized by means of N2 physical adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), and temperature-programmed desorption of O2 (O2-TPD). The catalytic result reveals that the LC-ACCA catalyst exhibited the highest activity for benzene total oxidation. The XRD result shows that single phase of LaCoO3 perovskite was obtained by all of these three kind of complexing agents. The LC-ACCA catalyst had uniform particles with relatively small sizes from SEM observation. Moreover, this catalyst exhibited higher lattice oxygen mobility, as indicated by O2-TPD measurements. These properties are suggested to be responsible for the high activity in benzene total oxidation. |
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| Keywords: | perovskite volatile organic compounds benzene total oxidation acrylamide assisted polymeric citrate combustion |
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