Single-Layered Graphene Oxide Nanosheet/Polyaniline Hybrids Fabricated Through Direct Molecular Exfoliation

详细信息    查看全文

• 作者：Guan-Liang Chen ; Shi-Min Shau ; Tzong-Yuan Juang ; Rong-Ho Lee ; Chih-Ping Chen ; Shing-Yi Suen ; Ru-Jong Jeng
• 刊名：Langmuir
• 出版年：2011
• 出版时间：December 6, 2011
• 年：2011
• 卷：27
• 期：23
• 页码：14563-14569
• 全文大小：943K
• 年卷期：v.27,no.23(December 6, 2011)
• ISSN：1520-5827

文摘

In this study, we used direct molecular exfoliation for the rapid, facile, large-scale fabrication of single-layered graphene oxide nanosheets (GOSs). Using macromolecular polyaniline (PANI) as a layered space enlarger, we readily and rapidly synthesized individual GOSs at room temperature through the in situ polymerization of aniline on the 2D GOS platform. The chemically modified GOS platelets formed unique 2D-layered GOS/PANI hybrids, with the PANI nanorods embedded between the GO interlayers and extended over the GO surface. X-ray diffraction revealed that intergallery expansion occurred in the GO basal spacing after the PANI nanorods had anchored and grown onto the surface of the GO layer. Transparent folding GOSs were, therefore, observed in transmission electron microscopy images. GOS/PANI nanohybrids possessing high conductivities and large work functions have the potential for application as electrode materials in optoelectronic devices. Our dispersion/exfoliation methodology is a facile means of preparing individual GOS platelets with high throughput, potentially expanding the applicability of nanographene oxide materials.