| 柠檬酸改性对掺Ba纳米MgO及其担载的Ru氨合成催化剂性能的影响 |
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| 引用本文： | 霍超,夏庆华,潘美华,杨霞珍,骆燕,刘化章.柠檬酸改性对掺Ba纳米MgO及其担载的Ru氨合成催化剂性能的影响[J].催化学报,2011,32(2):315-320. |
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| 作者姓名： | 霍超 夏庆华 潘美华 杨霞珍 骆燕 刘化章 |
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| 作者单位： | 浙江工业大学化学工程与材料学院; |
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| 基金项目： | 国家自然科学基金(20203016); 浙江省自然科学基金(Y406294) |
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| 摘 要： | 采用超声-静电吸附法制备了-系列经柠檬酸改件的掺Ba纳米MgO及其负载的氨合成Ru催化剂.并采用场发射手扫描电镜、X射线粉末衍射、N2物理吸附-脱附、电感耦合等离子体发射光谱及红外光谱等手段对样品进行了表征.结果表明,适量添加柠檬酸町有效调控Ba的掺杂量,从而使Ba-MgO结构与化学性质发生变化,其表面性能得到极大改善...
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| 关 键 词： | 柠檬酸 改性 掺钡 纳米氧化镁 钌 氨合成 超声制备 |
Effects of Citric Acid Modification on the Performance of Nano-Ba-MgO Support and Its Ru-Based Catalysts for Ammonia Synthesis |
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| HUO Chao,XIA Qinhua,PAN Meihua,YANG Xiazhen,LUO Yan,LIU Huazhang.Effects of Citric Acid Modification on the Performance of Nano-Ba-MgO Support and Its Ru-Based Catalysts for Ammonia Synthesis[J].Chinese Journal of Catalysis,2011,32(2):315-320. |
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| Authors: | HUO Chao XIA Qinhua PAN Meihua YANG Xiazhen LUO Yan LIU Huazhang |
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| Institution: | HUO Chao,XIA Qinhua,PAN Meihua,YANG Xiazhen,LUO Yan,LIU Huazhang College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310032,Zhejiang,China |
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| Abstract: | A series of citric acid-modified Ba-MgO supports(Ba-MgO(CA)) were prepared by ultrasound electrostatic adsorption(UEA) ,and the corresponding Ru catalysts for ammonia synthesis were then prepared by the impregnation method. Their physical and chemical properties were characterized by scanning electronic microscopy,X-ray diffraction,nitrogen physical adsorption,inductively coupled plasma-atomic emission spectrometry,and infrared spectroscopy. The results showed that the introduction of citric acid during the... |
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| Keywords: | citric acid modification barium doping nano-magnesia ruthenium ammonia synthesis ultrasonic preparation |
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