Xia Haibing, Chung Hong Jing, Sow Chorng-Haur, Chan Hardy Sze-On
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.
J Nanosci Nanotechnol. 2010 Apr;10(4):2409-15. doi: 10.1166/jnn.2010.2162.
We report here the preparation of fibrous gold nanoparticles-polyaniline (PANI) nanorod composite as an extension of our previous work in nanostructured conducting polymers. We have been able to control the amount of gold particles and the density of nanofibers covering the surface of the nanorods, which are characterized by selected area electron diffraction (SAED), X-ray diffraction (XRD) and transmission electron microscopy (TEM). The morphology of PANI products is confirmed by both scanning electron microscopy (SEM) and TEM. The effect of reaction conditions on the morphology of PANI nanostructures is also studied. The chemical and electronic structures of the PANI nanorods are determined by Fourier transform IR (FTIR) and UV-vis spectrometry. I-V curves of as-prepared PANI nanostructures measured by conductive atomic force microscopy (c-AFM) indicate negative differential resistance (NDR) behavior.
在此，我们报告了纤维状金纳米颗粒 - 聚苯胺（PANI）纳米棒复合材料的制备，这是我们先前在纳米结构导电聚合物方面工作的延伸。我们能够控制金颗粒的数量以及覆盖纳米棒表面的纳米纤维的密度，这些通过选区电子衍射（SAED）、X射线衍射（XRD）和透射电子显微镜（TEM）进行表征。聚苯胺产物的形态通过扫描电子显微镜（SEM）和透射电子显微镜（TEM）得以证实。还研究了反应条件对聚苯胺纳米结构形态的影响。通过傅里叶变换红外光谱（FTIR）和紫外 - 可见光谱测定了聚苯胺纳米棒的化学和电子结构。通过导电原子力显微镜（c - AFM）测量的所制备聚苯胺纳米结构的I - V曲线表明存在负微分电阻（NDR）行为。
