羟基硅酸镁纳米管负载非晶态Co-B催化环己烯氢甲酰化  

Catalytic Performances for Hydroformylation of Cyclohexene of MgSNTs-Supported Amorphous Co-B Catalysts

作　　者：苏芃赫 甄路安 陈雅[1] 刘晓彤[1] 朱宝林[1] 张守民[1] 黄唯平[1,2,3] SU Peng-He;ZHEN Lu-An;CHEN Ya;LIU Xiao-Tong;ZHU Bao-Lin;ZHANG Shou-Min;HUANG Wei-Ping(College of Chemistry,Nankai University,Tianjin 300071,China;Collaborative Innovation Center of Chemical Science and Engineering,Tianjin 300071,China;Key Laboratory of Advanced Energy Materials Chemistry（Ministry of Education）,Nankai University,Tianjin 300071,China)

机构地区：[1]南开大学化学学院,天津300071 [2]天津化学化工协同创新中心,天津300071 [3]南开大学先进能源材料化学教育部重点实验室,天津300071

出　　处：《无机化学学报》2018年第12期2197-2204,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.21373120,21071086);111计划项目(No.B12015)资助.

摘　　要：采用浸渍化学还原法制备羟基硅酸镁纳米管(MgSNTs)负载非晶态钴硼催化剂(Co-B/MgSNTs)。应用X衍射技术(XRD),透射电子显微镜(TEM),X射线光电子能谱仪(XPS),元素分析(ICP)和比表面积(BET)分析等手段对催化剂进行了表征。研究了催化剂对于环己烯氢甲酰化反应的催化活性及循环使用。研究结果表明,具有高比表面积(250 m2·g-1)、较强耐受性和稳定性的MgSNTs可以有效的分散金属粒子,防止活性中心团聚和流失,催化环己烯的转化率为75.8%,醛的选择性为65.8%,实验重复3次以上,催化剂依然保持良好的催化活性和选择性。Novel silicate nanotubes supported amorphous Co-B （Co-B/MgSNTs） were synthesized via a hydrothermal method followed by impregnation-chemical reduction processes. The catalysts were characterized with X-ray diffraction （XRD）, transmission electron microscopy （TEM）, X-ray photoelectron spectrometer （XPS）, atomic emission spectrometer （ICP） and brunauer-Emmett-Tellerv （BET） surface-area analyzers. The catalytic activity and recyclability of catalysts for hydroformylation of cyclohexene were evaluated. The conversion of cyclohexene over the catalysts is 75.8% and selectivity for aldehyde is 65.8%. The results indicate that Co-B nanoparticles were deposited on the inner and outer surface of MgSNTs, which had large specific surface area and high stability. Furthermore, the tubular structure of nanotubes could prevent nanoparticle from agglomeration. The catalyst used for 3 recycles shows good catalytic activity.

关 键 词：纳米管 硅酸镁 氢甲酰化 环己烯 

分 类 号：O614.812[理学—无机化学] O613.8[理学—化学]