碳纳米管上Pt-B负载方式对其间氯硝基苯加氢性能影响  

Effect of loading method on hydrogenation of m-chloronitrobenzene over carbon nanotubes-supported Pt-B catalysts

作　　者：李锋[1,2] 朱文晰 梁晋榕 曹博[1] 宋华[1] 王克亮[2] 

机构地区：[1]东北石油大学石油与天然气化工省重点实验室,黑龙江大庆163318 [2]东北石油大学提高采收率教育部重点实验室,黑龙江大庆163318

出　　处：《化学工程师》2017年第2期8-10,17,共4页Chemical Engineer

基　　金：黑龙江省教育厅项目(12541060)

摘　　要：选择性地将Pt-B非晶态合金负载于碳纳米管(CNT)的管内和管外,制备出CNT管内负载(Pt-B-in/CNT)和管外负载(Pt-B-out/CNT)的非晶态合金催化剂。以间氯硝基苯(m-CNB)选择加氢反应研究CNT上Pt-B负载方式对其催化性能影响。TEM和ICP分析表明,与CNT管外负载方式相比,采用CNT管内负载方式能有效抑制Pt-B粒子生长团聚,减少活性组分流失。m-CNB加氢表明,Pt-B-in/CNT(0.432 s-1)催化活性远高于Pt-B-out/CNT(0.329s^(-1)),并表现出更好的热稳定性和循环使用性能。Carbon nanotubes（CNT）-supported Pt-B amorphous alloy were prepared by selectively depositing Pt-B particles inside or outside CNT（Pt-B-in/CNT or Pt-B-out/CNT）. Effect of Pt-B loading method on hydrogenation of m-chloronitrobenzenes（m-CNB）was investigated. TEM and ICP show that the internal loading can better inhibit the growth and aggregation of Pt-B particles and the loss of active components compared with external loading.During the m-CNB hydrogenation, the Pt-B-in/CNT（0.432 s^-1）showed higher catalytic and better thermal stability and reusability performance than Pt-B-out/CNT（0.329 s^-1）.

关 键 词：负载方式 碳纳米管 Pt-B非晶态合金 加氢 间氯硝基苯 

分 类 号：O643.36[理学—物理化学]