基于電化學(xué)陽(yáng)極氧化的多壁碳納米管表面改性(英文)
發(fā)布時(shí)間:2021-01-08 01:18
分別以硫酸和氫氧化鈉溶液為電解液,用陽(yáng)極氧化方法對(duì)多壁碳納米管進(jìn)行表面改性處理。采用了掃描電子顯微鏡,透射電子顯微鏡,Zeta電位儀,紅外光譜儀,X-射線光電子能譜儀和拉曼光譜儀等表征手段對(duì)多壁碳納米管的形貌、分散性、功能化程度及缺陷程度等方面進(jìn)行了表征。多壁碳納米管經(jīng)陽(yáng)極氧化后,表面含氧官能團(tuán)數(shù)量增加,這提高了其在水溶液中的分散性。但是在不同的電解液中陽(yáng)極氧化后,納米管的分散性、官能團(tuán)種類和表面缺陷情況不同。在氫氧化鈉溶液中陽(yáng)極氧化會(huì)在納米管表面引入更多含氧官能團(tuán),而在硫酸溶液中陽(yáng)極氧化會(huì)在納米管表面引入更多缺陷。
【文章來源】:新型炭材料. 2020,35(02)北大核心
【文章頁(yè)數(shù)】:12 頁(yè)
【文章目錄】:
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:
本文編號(hào):2963619
【文章來源】:新型炭材料. 2020,35(02)北大核心
【文章頁(yè)數(shù)】:12 頁(yè)
【文章目錄】:
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:
本文編號(hào):2963619
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