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Investigation of the surface properties of different highly aligned N-MWCNT carpets

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arxiv 1910.07830 v1 pith:V7ECEJVY submitted 2019-10-17 cond-mat.mes-hall physics.atm-clus

Investigation of the surface properties of different highly aligned N-MWCNT carpets

V. Eckert , E. Haubold , S. Oswald , S. Michel , C. Bellmann , P. Potapov , D. Wolf , S. Hampel
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B. B\"uchner M. Mertig A. Leonhardt
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classification cond-mat.mes-hall physics.atm-clus
keywords carpetsn-mwcnttoluenesurfacesynthesizedacetonitrilealignedbenzylamine
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We investigated the physicochemical surface properties of different highly aligned nitrogen-doped multi-walled carbon nanotube (N-MWCNT) carpets, synthesized using toluene/pyrazine, toluene/benzylamine and acetonitrile via a sublimation-based chemical vapor deposition (SCVD) method at 760{\deg}C. The surfaces of the N-MWCNT carpets synthesized using toluene/pyrazine and toluene/benzylamine were very hydrophobic. In contrast, we observed a complete wetting of the N-MWCNT carpets synthesized using acetonitrile. The difference in the wetting behavior of these N-MWCNT carpets is the main focus in this study and was not investigated before. Here, we show that not only the presence or concentration of nitrogen inside the carbon lattice, but especially it's kind of incorporation have an important influence on the surface polarity.

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