基于电化学阳极氧化的多壁碳纳米管表面改性(英文)
发布时间:2021-01-08 01:18
分别以硫酸和氢氧化钠溶液为电解液,用阳极氧化方法对多壁碳纳米管进行表面改性处理。采用了扫描电子显微镜,透射电子显微镜,Zeta电位仪,红外光谱仪,X-射线光电子能谱仪和拉曼光谱仪等表征手段对多壁碳纳米管的形貌、分散性、功能化程度及缺陷程度等方面进行了表征。多壁碳纳米管经阳极氧化后,表面含氧官能团数量增加,这提高了其在水溶液中的分散性。但是在不同的电解液中阳极氧化后,纳米管的分散性、官能团种类和表面缺陷情况不同。在氢氧化钠溶液中阳极氧化会在纳米管表面引入更多含氧官能团,而在硫酸溶液中阳极氧化会在纳米管表面引入更多缺陷。
【文章来源】:新型炭材料. 2020,35(02)北大核心
【文章页数】:12 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Materials
2.2 Electrochemical oxidation setup
2.3 Procedure for the oxidation
2.4 Characterization
2.4.1 Scanning electron microscopy
2.4.2 Transmission electron microscopy
2.4.3 Fourier transform infrared spectroscopy
2.4.4 X-ray photoelectron spectroscopy(XPS)
2.4.5 Raman spectroscopy
3 Results and discussion
3.1 Electron microscopy observation
3.2 Stability of MWCNT aqueous suspensions
3.3 FT-IR analysis
3.4 XPS analysis
3.5 Raman spectroscopy analysis
3.6 Mechanisms of anodic oxidation in the H2SO4and NaOH electrolytes
4 Conclusions
Reference:
本文编号:2963619
【文章来源】:新型炭材料. 2020,35(02)北大核心
【文章页数】:12 页
【文章目录】:
1 Introduction
2 Experimental
2.1 Materials
2.2 Electrochemical oxidation setup
2.3 Procedure for the oxidation
2.4 Characterization
2.4.1 Scanning electron microscopy
2.4.2 Transmission electron microscopy
2.4.3 Fourier transform infrared spectroscopy
2.4.4 X-ray photoelectron spectroscopy(XPS)
2.4.5 Raman spectroscopy
3 Results and discussion
3.1 Electron microscopy observation
3.2 Stability of MWCNT aqueous suspensions
3.3 FT-IR analysis
3.4 XPS analysis
3.5 Raman spectroscopy analysis
3.6 Mechanisms of anodic oxidation in the H2SO4and NaOH electrolytes
4 Conclusions
Reference:
本文编号:2963619
本文链接:https://www.wllwen.com/kejilunwen/cailiaohuaxuelunwen/2963619.html