Navaladian S, Viswanathan B, Varadarajan T K, Viswanath R P
Department of Chemistry, National Centre for Catalysis Research, Indian Institute of Technology Madras, Chennai, 600 036 India.
Nanoscale Res Lett. 2008 Dec 4;4(2):181-186. doi: 10.1007/s11671-008-9223-4.
Palladium nanoparticles of average size around 8 nm have been synthesized rapidly by UV irradiation of mixture of palladium chloride and potassium oxalate solutions. A rod-shaped palladium oxalate complex has been observed as an intermediate. In the absence of potassium oxalate, no Pd nanoparticles have been observed. The synthesized Pd nanoparticles have been characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), selective area electron diffraction and energy dispersive analysis by X-rays (EDAX) analyses. XRD analysis indicates the preferential orientation of catalytically active {111} planes in Pd nanoparticles. A plausible mechanism has been proposed for the formation of anisotropic Pd nanoparticles.
通过紫外线照射氯化钯和草酸钾溶液的混合物，已快速合成出平均尺寸约为8纳米的钯纳米颗粒。已观察到一种棒状草酸钯络合物作为中间体。在没有草酸钾的情况下，未观察到钯纳米颗粒。合成的钯纳米颗粒已通过粉末X射线衍射（XRD）、透射电子显微镜（TEM）、选区电子衍射和X射线能量色散分析（EDAX）进行了表征。XRD分析表明钯纳米颗粒中催化活性{111}面的择优取向。已提出了一种关于各向异性钯纳米颗粒形成的合理机制。
