| 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 | |
| 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。 | |
| 关键词: 纳米管 硅酸镁 氢甲酰化 环己烯 | |
| 基金项目: 国家自然科学基金（No.21373120，21071086）和111计划项目（No.B12015）资助。 | |
| Abstract: 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. | |
| Keywords: nanotubes silicate hydroformylation cyclohexene | |
| 投稿时间：2018-06-12 修订日期：2018-10-04 | |
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| 苏芃赫,甄路安,陈雅,刘晓彤,朱宝林,张守民,黄唯平.羟基硅酸镁纳米管负载非晶态Co-B催化环己烯氢甲酰化[J].无机化学学报,2018,34(12):2197-2204. | |
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