用于抗坏血酸燃料电池系统的基于聚苯胺/TiO(2)纳米复合材料的有机-无机杂化材料。
Organic-inorganic hybrid materials based on polyaniline/TiO(2) nanocomposites for ascorbic acid fuel cell systems.
作者信息
Ganesan Raman, Gedanken Aharon
机构信息
Department of Chemistry, Kanbar Laboratory for Nanomaterials, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan, 52900, Israel.
出版信息
Nanotechnology. 2008 Oct 29;19(43):435709. doi: 10.1088/0957-4484/19/43/435709. Epub 2008 Sep 22.
Polyaniline was grafted onto a mixture of rutile and anatase TiO(2) nanoparticles by in situ chemical oxidative polymerization. These nanocomposites were characterized by carbon, hydrogen and nitrogen (CHN) analysis, x-ray diffraction (XRD), Fourier transform infrared (FTIR), ultraviolet-visible (UV-vis), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. FTIR and UV-vis confirm the formation of polyaniline on TiO(2) nanoparticles. The TEM shows that the composites consist of PANI and TiO(2) nanoparticles. Compared to the neat polyaniline, PANI/TiO(2) composites show a higher capacitance and also a higher activity per mass of polyaniline. Since the PANI/TiO(2) composites are stable during the electrooxidation of ascorbic acid, they can be used as an alternative catalyst for direct ascorbic acid fuel cells.
通过原位化学氧化聚合将聚苯胺接枝到金红石型和锐钛矿型TiO₂纳米颗粒的混合物上。这些纳米复合材料通过碳、氢和氮（CHN）分析、X射线衍射（XRD）、傅里叶变换红外（FTIR）、紫外可见（UV-vis）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）分析进行表征。FTIR和UV-vis证实了聚苯胺在TiO₂纳米颗粒上的形成。TEM表明复合材料由聚苯胺和TiO₂纳米颗粒组成。与纯聚苯胺相比，PANI/TiO₂复合材料显示出更高的电容以及每质量聚苯胺更高的活性。由于PANI/TiO₂复合材料在抗坏血酸的电氧化过程中是稳定的，它们可以用作直接抗坏血酸燃料电池的替代催化剂。
Zotero 插件