| Cu-BTC及其衍生物在苯甲醇选择氧化反应中的催化活性 |
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| 引用本文： | 李和健,吴藏藏,郑丽,廖卫平,徐秀峰.Cu-BTC及其衍生物在苯甲醇选择氧化反应中的催化活性[J].分子催化,2017,31(4):341-347. |
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| 作者姓名： | 李和健 吴藏藏 郑丽 廖卫平 徐秀峰 |
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| 作者单位： | 烟台大学应用催化研究所,山东烟台,264005 |
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| 基金项目： | 山东省重点研发计划项目（2016GSF117003） |
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| 摘 要： | 以硝酸铜和均苯三甲酸(BTC)为原料,水热合成了一种金属有机骨架化合物Cu-BTC,在水相中催化苯甲醇选择氧化反应,H2O2氧化剂,优化了Cu-BTC的晶化条件.70℃反应1 h,Cu-BTC(110C/24 h)上的苯甲醇转化率为75.4%、苯甲醛选择性83.5%,但反应后Cu-BTC骨架完全塌陷.在氮气中高温焙烧Cu-BTC,制得衍生物Cu@C,也用于催化苯甲醇氧化反应.结果表明:Cu@C催化剂重复使用5次,可维持较高的苯甲醇转化率,但苯甲醛选择性有所下降.用X射线衍射(XRD)、N2物理吸附(BET)、热分析(TG-DSC)、红外光谱(FTIR)、能量色散X射线光谱分析(EDX)等技术对催化剂进行了结构表征,发现:Cu@C在反应中生成的Cu2O促进了苯甲醛的深度氧化.
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| 关 键 词： | 苯甲醇选择氧化 Cu-BTC Cu-BTC衍生物 Cu@C 催化活性 |
| 收稿时间： | 2017/6/21 0:00:00 |
| 修稿时间： | 2017/7/10 0:00:00 |
Selective Catalytic Oxidation of Benzyl Alcohol over Cu-BTC and Its Derivatives |
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| LI He-jian,WU Cang-cang,ZHENG Li,LIAO Wei-ping and XU Xiu-feng.Selective Catalytic Oxidation of Benzyl Alcohol over Cu-BTC and Its Derivatives[J].Journal of Molecular Catalysis (China),2017,31(4):341-347. |
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| Authors: | LI He-jian WU Cang-cang ZHENG Li LIAO Wei-ping and XU Xiu-feng |
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| Institution: | Institute of Applied Catalysis, Yantai University, Yantai 264005, China,Institute of Applied Catalysis, Yantai University, Yantai 264005, China,Institute of Applied Catalysis, Yantai University, Yantai 264005, China,Institute of Applied Catalysis, Yantai University, Yantai 264005, China and Institute of Applied Catalysis, Yantai University, Yantai 264005, China |
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| Abstract: | A metal organic framework compound (MOF) of Cu-BTC was hydro-thermally synthesized by using benzene tri-carboxylic acid (BTC) as organic ligand and copper nitrate as metal cation resource.Then,the oxidation of benzyl alcohol was catalyzed by Cu-BTC as-prepared under the reaction conditions:H2O2 as oxidant and water as solvent.75.4％ conversion of benzyl alcohol and 83.5％ selectivity of benzaldehyde were obtained over Cu-BTC (110C/24 h) at 70 ℃ for 1 h.It was found that the skeleton of Cu-BTC was collapsed after reaction.Subsequently,the Cu@C was prepared by calcining Cu-BTC in nitrogen atmosphere at high temperature,and the re-usability of Cu@C catalyst in benzyl alcohol oxidation was evaluated.It was found that the conversion of benzyl alcohol could be kept at about 60％,but the selectivity of benzaldehyde decreased after five runs.In addition,Cu-BTC and Cu@C samples were characterized by XRD,BET,TG-DSC,FTIR and EDX techniques.The results show that Cu2O formed in spent Cu@C catalysts promoted the deep oxidation of benzaldehyde to benzoic acid. |
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| Keywords: | selective catalytic oxidation of benzyl alcohol Cu-BTC Cu-BTC derivative Cu@C catalytic activity |
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