| 水热法制备Sr_2FeNiO_6催化剂及其催化性能研究 |
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| 引用本文： | 胡译文,陈晓宇,彭俊峰,解亚琼,郑建东.水热法制备Sr_2FeNiO_6催化剂及其催化性能研究[J].工业催化,2020,28(1):36-39. |
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| 作者姓名： | 胡译文 陈晓宇 彭俊峰 解亚琼 郑建东 |
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| 作者单位： | 滁州学院 材料与化学工程学院,安徽 滁州 239000 |
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| 摘 要： | 采用水热法制备双钙钛矿催化剂Sr_2FeNiO_6,考察不同浓度KOH溶液(4 mol·L~(-1)、6 mol·L~(-1)、8 mol·L~(-1)、10 mol·L~(-1)、12 mol·L~(-1)、14 mol·L~(-1))对催化剂性能的影响,利用X射线衍射、比表面积测定、程序升温还原和扫描电镜等对样品进行性能表征,并以催化甲烷燃烧为目标,考察催化剂催化性能。结果表明,矿化剂KOH浓度对样品性能影响较大,当浓度为10 mol·L~(-1)时,起燃温度最低,T_(10%)为430℃;浓度为8 mol·L~(-1)时,样品比表面积最大,为19.0 m~2·g~(-1),完全燃烧温度最低,T_(90%)为610℃。
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| 关 键 词： | 催化剂工程 水热合成法 双钙钛矿 甲烷燃烧 催化活性 |
Synthesis of Sr2FeNiO6 catalysts by hydrothermal method and their catalytic performance |
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| Hu Yiwen,Chen Xiaoyu,Peng Junfeng,Xie Yaqiong,Zheng Jiandong.Synthesis of Sr2FeNiO6 catalysts by hydrothermal method and their catalytic performance[J].Industrial Catalysis,2020,28(1):36-39. |
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| Authors: | Hu Yiwen Chen Xiaoyu Peng Junfeng Xie Yaqiong Zheng Jiandong |
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| Affiliation: | College of Material and Chemical Engineering,Chuzhou University,Chuzhou 239000,Anhui,China |
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| Abstract: | Doublel perovskite catalyst Sr2FeNiO6 was prepared by hydrothermal synthesis.The influence of KOH concentrations(4 mol·L-1,6 mol·L-1,8 mol·L-1,10 mol·L-1,12 mol·L-1,14 mol·L-1) on catalyst performance was investigated.The title catalysts were characterized by XRD,BET,H2-TPR and SEM techniques.The catalytic activity was evaluated in methane combustion.The results show that KOH concentration has great influence on the performance of catalysts.When KOH concentration is 10 mol·L-1,the light-off temperature is the lowest and the conversion of 10% is obtained at 430 ℃.The catalyst Sr2FeNiO6 retains a specific surface area of 19.0 m2·g-1 and the conversion 90% is obtained at 610 ℃ when the KOH concentration is 8 mol·L-1 |
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| Keywords: | catalyst engineering hydrothermal synthesis double perovskites methane combustion catalytic activity |
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