Tocoglu U, Alaf M, Cevher O, Guler M O, Akbulut H
Engineering Faculty, Department of Metallurgical and Materials Engineering, Sakarya University, Esentepe Campus 54187, Turkey.
J Nanosci Nanotechnol. 2012 Dec;12(12):9169-74. doi: 10.1166/jnn.2012.6751.
In the present study, we report the systematic investigation of the effect of chemical oxidation on the structure of multi-walled carbon nanotubes (MWCNTs) and multi-walled carbon nanotubes buckypaper. The chemical oxidation of multi-walled carbon nanotubes was performed via using three types of chemical solutions: nitric acid, sulfuric acid/nitric acid (3/1) and ammonium hydroxide/hydrogen peroxide (1/1). The surfaces of the multi-walled carbon nanotubes were modified by forming Carboxyl and other functional groups. Flexible multi-walled carbon nanotubes buckypapers were then produced by vacuum filtration techniques from functionalized multi-walled carbon nanotubes. The characteristic properties of multi-walled carbon nanotubes specimens were investigated via Raman, and Fourier Transform Infrared Spectroscopies. The thermal properties and morphology of multi-walled carbon nanotubes were also studied byThermogravimetric Analysis and Field Emission Scanning Electron Microscopy techniques.
在本研究中，我们报告了对化学氧化对多壁碳纳米管（MWCNTs）和多壁碳纳米管巴基纸结构影响的系统研究。多壁碳纳米管的化学氧化通过使用三种化学溶液进行：硝酸、硫酸/硝酸（3/1）和氢氧化铵/过氧化氢（1/1）。通过形成羧基和其他官能团对多壁碳纳米管的表面进行了改性。然后通过真空过滤技术由功能化的多壁碳纳米管制备出柔性多壁碳纳米管巴基纸。通过拉曼光谱和傅里叶变换红外光谱对多壁碳纳米管样品的特性进行了研究。还通过热重分析和场发射扫描电子显微镜技术研究了多壁碳纳米管的热性能和形态。
