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现代化工  2018, Vol. 38 Issue (5): 134-138    DOI: 10.16606/j.cnki.issn0253-4320.2018.05.031
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
Ir-N@C催化剂在选择性制备直链醇中的应用
王振东1, 李春虎1, 徐国强2, 牟新东2
1. 中国海洋大学化学化工学院, 山东 青岛 266100;
2. 中科院生物基材料重点实验室, 中科院青岛生物能源与过程研究所, 山东 青岛 266101
Application of Ir-N@C catalyst in selective preparation of straight chain alcohols
WANG Zhen-dong1, LI Chun-hu1, XU Guo-qiang2, MU Xin-dong2
1. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;
2. CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
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摘要 通过高温热解的方法制备出在活性炭中掺杂N元素的催化剂载体,并用原位还原法将过渡金属Ir负载到催化剂载体上,然后经过氧化处理制备出金属颗粒较小且分散均匀的N掺杂活性炭负载型Ir催化剂(Ir-N@C)。Ir-N@C多相催化剂在以乙醇与正戊醇制备直链醇(正庚醇)的应用中表现出一定的活性和较高的选择性。通过对催化剂的制备与反应条件的优化,交叉缩合产物直链醇(正庚醇)与支链醇(2-乙基-戊醇)的比例可以达到6.0:1.0,乙醇的单程转化率达到45.9%。Ir-N@C催化剂在循环实验中活性没有明显的变化,表现出一定的稳定性及循环使用性。
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王振东
李春虎
徐国强
牟新东
关键词:  乙醇  N掺杂活性炭    多相催化剂  直链醇    
Abstract: Nitrogen-doped activated carbon supports are prepared by high temperature pyrolysis method,and then transition metal Ir is uniformly immobilized on the supports by in-situ reduction method.Finally,the nitrogen-doped activated carbon-supported Ir catalyst (Ir-N@C) is prepared by the oxidation treatment,in which Ir metal particles have small size and are dispersed uniformly on the supports.The prepared Ir-N@C heterogeneous catalyst shows certain activity and higher selectivity in the preparation of straight chain alcohol (n-heptanol) from ethanol and n-pentanol.The mass ratio of straight chain alcohol (n-heptanol) to branched alcohol (2-ethyl-pentanol) among cross-condensation products can reach 6.0:1.0 and the single-pass conversion of ethanol can reach 45.9% after optimizing catalyst preparation and reaction condition.In recycling experiments,Ir-N@C catalyst shows good stability and recycling performance.
Key words:  ethanol    nitrogen-doped activated carbon    Ir    heterogeneous catalyst    straight chain alcohol
收稿日期:  2017-10-24      修回日期:  2018-03-11           出版日期:  2018-05-20
O643  
通讯作者:  李春虎(1963-),男,博士,教授,研究方向为催化化学,通讯联系人,0532-66781527,lichunhu@ouc.edu.cn。    E-mail:  lichunhu@ouc.edu.cn
作者简介:  王振东(1992-),男,硕士研究生,研究方向为催化化学,wangzhendong-ouc@163.com
引用本文:    
王振东, 李春虎, 徐国强, 牟新东. Ir-N@C催化剂在选择性制备直链醇中的应用[J]. 现代化工, 2018, 38(5): 134-138.
WANG Zhen-dong, LI Chun-hu, XU Guo-qiang, MU Xin-dong. Application of Ir-N@C catalyst in selective preparation of straight chain alcohols. Modern Chemical Industry, 2018, 38(5): 134-138.
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http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2018.05.031  或          http://www.xdhg.com.cn/CN/Y2018/V38/I5/134
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