磁性催化剂Ru/Fe_3O_4@C的合成及其在α-蒎烯加氢反应中的应用
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- 英文论文题名：The synthesis of magnetic Ru/Fe_3O_4@C nanospheres with controlled carbon layer and its high selectivity to prepare cis-pinane
- 论文作者：刘悦 ; 李露 ; 刘仕伟 ; 于世涛
- 英文论文作者：Yue Liu ; Lu Li ; Shiwei Liu ; Shitao Yu ; College of Chemical Engineering ; Qingdao University of Science and Technology
- 年：2016
- 作者机构：青岛科技大学化工学院;
- 论文关键词：Ru/Fe_3O_4@C ; 磁分离 ; 加氢 ; α-蒎烯
- 英文论文关键词：Ru/Fe_3O_4@C ; magnetic separation ; Hydrogenation ; α-pinene
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十七分会：纳米催化
- 语种：中文
- 分类号：O643.36;O621.251
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十七分会 ; 纳米催化
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：256k
- 原文格式：D
- 会议级别：全国
摘要
在水热条件下通过改变葡萄糖的加入量合成了碳层厚度可控的Ru/Fe_3O_4@C磁性催化剂。碳层包覆的Fe_3O_4纳米粒子表面增加了大量的功能性基团,能够很好的吸附与固定贵金属粒子。制备了不同Ru金属负载量的磁性催化剂。合成的碳包覆的核壳磁性催化剂分散性能较好,具有超顺磁特性。Ru/Fe_3O_4@C在催化α-蒎烯加氢制备顺式蒎烷反应时具有较高的催化活性与选择性,当反应结束时,利用外加磁场能够方便快速的实现催化剂的分离与回收,催化剂重复利用5次后,催化活性未见明显降低,具有较好的重复使用性能。
The controlled carbon layer of Ru/Fe_3O_4@C was successfully synthesized by changing amounts of glucose under hydrothermal condition. Coating Fe_3O_4 nanoparticles with carbon layer can add functional groups on their surface, noble metal could be easily adsorbed. An efficient magnetic carbon nanospheres supported different loading of Ru nanoparticle catalyst was prepared. The obtained catalysts, consisting of core-shell structured microspheres with high uniformity, show a good superparamagnetic property. Ru/Fe_3O_4@C nanospheres were used as catalyst for hydrogenation of α-pinene to prepare cis-pinane with high selectivity and exhibited a highly catalytic activity. Furthermore, the results showed that the catalyst was completely recoverable with the simple application of an external magnetic field and recycled five times without distinct loss in activity.
The controlled carbon layer of Ru/Fe_3O_4@C was successfully synthesized by changing amounts of glucose under hydrothermal condition. Coating Fe_3O_4 nanoparticles with carbon layer can add functional groups on their surface, noble metal could be easily adsorbed. An efficient magnetic carbon nanospheres supported different loading of Ru nanoparticle catalyst was prepared. The obtained catalysts, consisting of core-shell structured microspheres with high uniformity, show a good superparamagnetic property. Ru/Fe_3O_4@C nanospheres were used as catalyst for hydrogenation of α-pinene to prepare cis-pinane with high selectivity and exhibited a highly catalytic activity. Furthermore, the results showed that the catalyst was completely recoverable with the simple application of an external magnetic field and recycled five times without distinct loss in activity.
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