Materials 2013, 6(8), 3064-3078; doi:10.3390/ma6083064
Article

Enrichment of Large-Diameter Single-Walled Carbon Nanotubes (SWNTs) with Metallo-Octaethylporphyrins

1email, 2email, 3email, 1email, 3email, 1email, 3email and 1,3,* email
Received: 25 March 2013; in revised form: 2 July 2013 / Accepted: 16 July 2013 / Published: 24 July 2013
(This article belongs to the Special Issue Carbon Nanotubes)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: We report here a detailed experimental investigation on noncovalent functionalization of single-walled carbon nanotubes (SWNTs) with four different metallo-octaethylporphyrins (MOEPs). It has been found that the identity of the center metal of MOEP strongly influences the solubilization of SWNTs. MnOEPs and ZnOEPs successfully extracted SWNTs in methanol, as confirmed by absorption spectroscopy, while CoOEPs and CuOEPs were not able to extract SWNTs at all. Atomic force microscopy (AFM) studies revealed that large SWNTs bundles could be exfoliated into either individual SWNTs or very small bundles by complexation with ZnOEP molecules. As for enrichment of SWNTs, ZnOEPs and MnOEPs show similar diameter discrimination ability toward 76-CoMoCAT, providing the extracted SWNTs with relatively large diameters.
Keywords: single-walled carbon nanotubes; metallo-octaethylporphyrins; complexation; enrichment
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MDPI and ACS Style

Li, Y.; Rahman, A.F.M.M.; Liu, G.; Xiong, Z.; Koezuka, K.; Xu, Z.; Komatsu, N.; Wang, F. Enrichment of Large-Diameter Single-Walled Carbon Nanotubes (SWNTs) with Metallo-Octaethylporphyrins. Materials 2013, 6, 3064-3078.

AMA Style

Li Y, Rahman AFMM, Liu G, Xiong Z, Koezuka K, Xu Z, Komatsu N, Wang F. Enrichment of Large-Diameter Single-Walled Carbon Nanotubes (SWNTs) with Metallo-Octaethylporphyrins. Materials. 2013; 6(8):3064-3078.

Chicago/Turabian Style

Li, Yuda; Rahman, A. F.M.M.; Liu, Gang; Xiong, Zichao; Koezuka, Kenji; Xu, Zhigao; Komatsu, Naoki; Wang, Feng. 2013. "Enrichment of Large-Diameter Single-Walled Carbon Nanotubes (SWNTs) with Metallo-Octaethylporphyrins." Materials 6, no. 8: 3064-3078.


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