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PVP-Pt/Ru胶体催化氢化对氯硝基苯的性能研究 被引量：1

Catalytic Hydrogenation of p-Chloronitrobenzene over PVP-Pt/Ru Bimetallic Colloids
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摘要 以聚乙烯吡咯烷酮(PVP)为保护剂,乙醇为还原剂(醇/水体积比为9∶1)制备了PVP-Pt/Ru双金属胶体,并用TEM进行了表征。以PVP-Pt/Ru双金属胶体为催化剂进行了对氯硝基苯(p-CNB)的催化氢化反应。探讨不同铂钌比以及加入不同金属离子后对其催化反应的影响。结果表明,PVP-Pt/Ru双金属胶体催化活性比PVP-Ru的高,比PVP-Pt胶体稍低,对氯苯胺的(p-CAN)选择性有明显的提高,达到99.8%,催化剂的活性随着胶体中钌含量的增加而降低而选择性增加;Sn2+离子对PVP-4Pt/1Ru的修饰作用较好,催化剂的活性由0.067s-1(根据氢气消耗计算的反应速率)提高到0.205s-1,选择性由92.1%提高到99.8%。 Poly（N-vinyl-2-pyrrolidone）-stabilized Pt/Ru colloidal nanoparticles（PVP-Pt/Ru） were prepared by ethanol reduction of H2PtCl6·6H2O and RuCl3·nH2O in ethanol-water solvent and characterized by TEM.The colloidal nanoparticles were used in the hydrogenation of p-chloronitrobenzene.The influences of n（Pt）： n（Ru） and different metal ions on hydrogenation results were investigated.The results showed that the catalytic activity of PVP-Pt/Ru was higher than that of PVP-Ru,but lower than that of PVP-Pt.High selectivity（99.8%） to p-chloroaniline（p-CAN） could be obtained over PVP-Pt/Ru bimetallic colloids.The selectivity to p-CAN increased and the activity decreased with the increasing of Ru in Pt/Ru colloidal catalysts.The catalytic activity（calculated from H2 consumption） increased from 0.067 s-1 to 0.205 s-1 and the selectivity increased from 92.1% to 99.8% after Sn2＋ was added in PVP-4Pt/1Ru colloidal nanoparticles.
作者 莫欣欣 肖海连 刘漫红
机构地区 青岛科技大学材料科学与工程学院
出处 《青岛科技大学学报（自然科学版）》 CAS 北大核心 2012年第2期139-143,共5页 Journal of Qingdao University of Science and Technology:Natural Science Edition
基金 山东省优秀中青年奖励基金项目(2008BS09009)
关键词 Pt/Ru双金属胶体 催化氢化 金属离子 对氯硝基苯 PVP-Pt/Ru bimetallic colloids catalytic hydrogenation metal ion p-chloronitrobenzene
分类号 O643.38 [理学—物理化学]
  • 相关文献

参考文献15

  • 1Liu M H, Yu W Y, Liu H F, et al. Selective hydrogenation of o-chloronitrohenzene over polymer-stabilized ruthenium colloidal catalysts[J].J Mol Catal A..Chem, 1999, 138 (2/ 3) : 295-303.
  • 2Liu M H, Yu W Y, Liu H F, et al. Preparation and charac- terization of polymer stabilized ruthenium-platinum and ru- thenium-palladium bimetallic eolloids and their catalytic prop- erties for hydrogenation of o-chloronitrobenzene[J]. J Colloid Interface Sci, 1999, 214 (2): 231-237.
  • 3Carothers W H, Aadams R. Platinum oxide as a catalyst in the reduction of organic compounds. VII. A study of the effects of numerous substances on the platinum catalysis of the reduction of benzaldehyde[J]. J Am Chem Soc, 1925, 47(4): 1047-1063.
  • 4Carothers W H, Adams R. Platinum oxide as a catalyst in the reduction of organic compounds. II. Reduction of alde- hydes activation of the catalyst by the salts certain metals [J]. J Am Chem Soc, 1923, 45 (4): 1071-1086.
  • 5Tuley W F, Adams R. The reduction of cinnamic aldehyde to cinnamy alcohol in the presence of platinum-oxide platinum black and prompters. XI[J]. J Am Chem Soc, 1925, 47 (12) :3061-3068.
  • 6Adams R, Garvey B S. Selective reduction of cirtral by means of platinum-oxide platinum black and a promoter. XII[J]. J Am Chem Soc, 1926, 48 (2):477-482.
  • 7Yu W Y, Liu H F, Liu M H, et al. Selective hydrogenation of a, unsaturated aldehyde to a,unsaturated alcohol over polymer-stabilized platinum colloid and the promotion effect of metal cations[J]. J Mol Catal, A.. Chem, 1999, 138(2/ 3), 273-286.
  • 8Yu W Y, Liu H F, Liu M H, et al. Selective hydrogenation of citronellal to citronellol over polymer-stabilized noble met- al eolloid[J]. React Funet Polym, 2000, 44(1): 21-29.
  • 9Yu W Y, Liu H F, Tao Q. Modification of metal cations to metal cluster in liquid medium [J]. Chem Commun, 1996, 32(15) : 1773-1774.
  • 10Yang X Y, Liu H F. Influence of metal ions on hydrogena- tion of o-chloronitrobenzene over platinum colloidal clusters [J]. ApplCatal, A, 1997, 164 (1/2): 197-203.

二级参考文献14

  • 1余正坤,徐筠.高分子锚定双金属催化剂在烯丙基氯羰化中的协同效应[J].Chinese Journal of Catalysis,1995,16(1):7-8. 被引量：2
  • 2Zuo Xiaobin，J Mol Catal A，2000年，157卷，12期，217页
  • 3Yu Weiyong，J Mol Catal A，1999年，138卷，23期，273页
  • 4Zuo Xiaobin，Tetrahedron Lett，1999年，55卷，25期，7787页
  • 5Zuo Xiaobin，Tetrahedron Lett，1998年，39卷，14期，1941页
  • 6Yu Weiyong，Chem Commun，1996年，15期，1773页
  • 7Yu Zhengkun，J Chem Soc Chem Commun，1995年，11期，1155页
  • 8Liu M，J Mol Catal A，1999年，138卷，2/3期，295页
  • 9Yang X，J Mol Catal A，1999年，144卷，1期，123页
  • 10Yang X，J Mol Catal A，1999年，147卷，1/2期，55页

共引文献4

同被引文献18

  • 1Schmid G. Large clusters and colloids.Metals in the embryonic state[J].Chemical Reviews,1992,(08):1709-1727.
  • 2Lewis L N. Chemical catalysis by colloids and clusters[J].Chemical Reviews,1993,(08):2693-2730.
  • 3Gates B C. Supported metal clusters:Synthesis,structure,and catalysis[J].Chemical Reviews,1995,(03):511-522.
  • 4Thomas J M. Colloidal metals:Past,present and future[J].Pure and Applied Chemistry,1988,(10):1517-1528.
  • 5Liu M H,Yu W Y,Liu H F. Selective hydrogenation of ochloronitrobenzene over polymer-stabilized ruthenium colloidal catalysts[J].Journal of Molecular Catalysis,1999,(2/3):295-303.
  • 6Yu W Y,Liu H F,Tao Q. Modification of metal cations to metal cluster in liquid medium[J].Chemical Communications,1996,(15):1773-1774.
  • 7Yu W Y,Liu H F,Liu M H. Selective hydrogenation of citronellal to citronellol over polymer-stabilized noble metal colloid[J].Reactive and Functional Polymers,2000,(01):21-29.
  • 8Yu W Y,Liu H F,Liu M H. Selective hydrogenation of α,β-unsaturated aldehyde to α,β-unsaturated alcohol over polymer-stabilized platinum colloid and the promotion effect of metal cations[J].Journal of Molecular Catalysis A:Chemical,1999,(2/3):273-286.
  • 9Liu M H,Zhang J,Yu W W. Synthesis of PVP-stabilized Pt/Ru colloidal nanoparticles by ethanol reduction and their catalytic properties for selective hydrogenation of ortho-chloronitrobenzene[J].Journal of Catalysis,2011,(01):1-7.
  • 10Toshima N,Wang Y. Preparation and catalysis of novel colloidal dispersions of copper/noble metal bimetallic clusters[J].Langmuir,1994,(12):4574-4580.

引证文献1

青岛科技大学学报（自然科学版）
2012年 第2期

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