Palladium Nanoparticles Confined in the Cages of MIL-101: An Efficient Catalyst for the One-Pot Indole Synthesis in Water
Palladium Nanoparticles Confined in the Cages of MIL-101: An Efficient Catalyst for the One-Pot Indole Synthesis in Water
复制标题
MIL-101 笼中的钯纳米粒子：水中一锅法合成吲哚的高效催化剂
DOI：
10.1021/cs200351p
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发表时间：
2011-11-01
期刊：
影响因子：
12.9
通讯作者：
Zhou, Xinggui
中科院分区：
文献类型：
--
作者：
Li, Hui;Zhu, Zhonghong;Zhou, Xinggui
水热稳定的金属有机骨架MIL-101被用作金属Pd纳米颗粒催化剂的载体。通过X射线光电子能谱（XPS）、X射线衍射（XRD）、N-2物理吸附、扫描电镜（SEM）、透射电镜（TEM）和CO化学吸附等表征手段，证实了Pd纳米粒子被MIL-101笼状结构所包裹。在2-碘苯胺与苯乙炔水溶液一锅法合成吲哚反应中，所制备的Pd催化剂比MCM-41负载的金属Pd纳米粒子具有更高的活性和稳定性。发现增强的催化性能取决于MIL-101载体的纹理和表面化学。
A hydrothermally stable metal organic framework, MIL-101, was used as support for a metallic Pd nanoparticle catalyst. With the characterization of X-ray photoelectron spectroscopy, X-ray diffraction, N-2 physisorption, scanning electron microscopy, transmission electron microscopy, and CO chemisorption, the resulting Pd nanoparticles were identified to be confined in the cages of MIL-101. During the one-pot indole synthesis between 2-iodoaniline and phenylacetylene in water, the as-prepared Pd catalyst was more active and stable than the metallic Pd nanoparticles supported on MCM-41. The enhanced catalytic properties were found to depend on both the texture and the surface chemistry of the MIL-101 support.