Lingappan Niranjanmurthi, Kim Do Hoon, Park Chan, Gal Yeong-Soon, Lim Kwon Taek
J Nanosci Nanotechnol. 2015 Jan;15(1):224-7. doi: 10.1166/jnn.2015.8348.
Palladium nanoparticles decorated modified reduced graphene oxide (RGO) composite was synthesized by a two-step process using 1,10-Phenanthroline (PHEN) as bridging agent. Firstly, the graphene oxide (GO) was non-covalently modified with the PHEN molecules through π-π interaction between two components. Then, the modified GO was complexed with Pd precursor and subsequently reduced from Pd2+ to Pd0 using NaBH4 to yield Pd dispersed modified RGO sheets. The structure and morphology of the resulting composites were characterized by FTIR, TGA, EDX, FESEM, HRTEM and XRD measurements. XPS results revealed that the reduction of Pd2+ to metal-lic Pd was successfully achieved, while the HRTEM and FESEM micrographs suggested that the Pd nanoparticles were well-dispersed on the functionalized graphene sheets.
以1,10 - 菲咯啉（PHEN）为桥联剂，通过两步法合成了钯纳米粒子修饰的改性还原氧化石墨烯（RGO）复合材料。首先，通过两种组分之间的π - π相互作用，用PHEN分子对氧化石墨烯（GO）进行非共价修饰。然后，将改性的GO与钯前驱体络合，随后用硼氢化钠将Pd²⁺还原为Pd⁰，得到钯分散的改性RGO片材。通过傅里叶变换红外光谱（FTIR）、热重分析（TGA）、能谱分析（EDX）、场发射扫描电子显微镜（FESEM）、高分辨率透射电子显微镜（HRTEM）和X射线衍射（XRD）测量对所得复合材料的结构和形貌进行了表征。X射线光电子能谱（XPS）结果表明，成功实现了Pd²⁺向金属钯的还原，而HRTEM和FESEM显微照片表明钯纳米粒子在功能化石墨烯片上分散良好。
