Catalytic properties of palygorskite supported Ru and Pd for efficient oxidation of alcohols
Catalytic properties of palygorskite supported Ru and Pd for efficient oxidation of alcohols
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凹凸棒石负载Ru和Pd对醇有效氧化的催化性能
DOI：
10.1016/j.catcom.2015.02.021
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发表时间：
2015-05
影响因子：
3.7
通讯作者：
Zi-qiang Lei
中科院分区：
文献类型：
--
作者：
Xi-Xi Liang;Ying Feng;Huan-Huan Duan;Zi-qiang Lei
以天然凹凸棒石(PG)为原料，采用湿法浸渍法制备了低成本、可重复使用的Pd/PG和Ru/PG负载型催化剂。采用原子力显微镜、电感耦合等离子体发射光谱、X射线光电子能谱、X射线衍射仪、比表面积法、透射电子显微镜和傅立叶变换红外光谱等手段对催化剂进行了表征。以邻苯二甲酸二异辛酯为氧化剂，对合成的催化剂的催化性能进行了评价和优化。结果表明，催化剂中Ru和Pd的存在大大提高了催化剂的催化活性，与凹凸棒石催化剂相比，催化剂的选择性可达99%以上。
Natural palygorskite (PG) was employed to prepare cost-effective, reusable supported catalyst of Pd/PG and Ru/PG through wet impregnation method. The catalysts were characterized through AFM, ICP-AES, XPS, XRD, BET, TEM and FTIR. The catalytic properties of the synthesized catalysts were assessed and optimized through oxidation of alcohols with PhIO as oxidant. It showed that the existence of Ru and Pd in the catalysts dramatically enhanced the catalytic activity with a prominent selectivity of far more than 99% compared with the palygorskite.
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