| 用磁性催化剂 Pd/La1-xPbxMnO3（x=0.20.6）合成碳酸二苯酯（英文） |
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| 引用本文： | 鲁威,杜治平,袁华,田琦峰,吴元欣.用磁性催化剂 Pd/La1-xPbxMnO3（x=0.20.6）合成碳酸二苯酯（英文）[J].中国化学工程学报,2013,21(1):8-13. |
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| 作者姓名： | 鲁威 杜治平 袁华 田琦峰 吴元欣 |
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| 作者单位： | Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, China |
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| 基金项目： | Supported by the Key Program of National Natural Science Foundation of China(20936003);the Foundation for Innovation Research Groups of the Natural Science Foundation of Hubei Province(2008CDA009) |
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| 摘 要： | The magnetic perovskite-supported palladium catalysts Pd/La1-xPbxMnO3 (x=0.2-0.7) were prepared and used for the oxidative carbonylation of phenol to diphenyl carbonate. The synthesized catalysts were characterized by the X-ray diffraction (XRD), surface area measurement BET, vibration sample magnetometer (VSM) and tem-perature-programmed reduction (TPR). The experimental results demonstrated that the magnetic Pd/La1-xPbxMnO3 (x=0.4-0.5) obtain relative better catalytic activity. It can be explained by higher concentration of oxygen vacan-cies, larger amount and better mobility of lattice oxygen of their support. Furthermore, these samples possess suffi-cient saturated magnetization. Thus, Pd/La1-xPbxMnO3 (x=0.4-0.5) may be suitable for operation in the magneti-cally stabilized bed reactor.
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| 关 键 词： | diphenyl carbonate perovskite-type oxides magnetic catalyst magnetically stabilized bed reactor |
| 收稿时间： | 2011-07-08 |
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