Cheng Jinsheng, Tang Longhua, Li Jinghong
Department of Chemistry, Chinese University of Science and Technology, Hefei 230026, China.
J Nanosci Nanotechnol. 2011 Jun;11(6):5159-68. doi: 10.1166/jnn.2011.4173.
Novel palladium nanoparticles/graphene-based composites were prepared by a method involving palladium nanoparticles in situ growth on chitosan-functionalized graphene. The resulted composites showed uniform palladium nanoparticles distribution, which were characterized by Fourier transform infrared spectrometry (FTIR), transmission electron microscopy (TEM), scanning electron microscopy (SEM), Raman spectroscopy, atomic force microscopy (AFM), X-ray diffraction spectroscopy (XRD) and electron diffraction pattern (ED), etc. Moreover, such graphene-based nanocomposites were successfully applied to catalyze the cyclotrimerization of acetylene with high regioselectivity (> or = 99.5%) and superior recycling performance without the assistance of any ligands.
通过一种使钯纳米粒子在壳聚糖功能化石墨烯上原位生长的方法制备了新型钯纳米粒子/石墨烯基复合材料。所得复合材料显示出钯纳米粒子分布均匀，通过傅里叶变换红外光谱（FTIR）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、拉曼光谱、原子力显微镜（AFM）、X射线衍射光谱（XRD）和电子衍射图谱（ED）等对其进行了表征。此外，这种石墨烯基纳米复合材料成功地应用于催化乙炔的环三聚反应，具有高区域选择性（≥99.5%）和优异的循环性能，无需任何配体的辅助。
