People | Locations | Statistics |
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Ferrari, A. |
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Schimpf, Christian |
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Dunser, M. |
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Thomas, Eric |
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Gecse, Zoltan |
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Tsrunchev, Peter |
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Della Ricca, Giuseppe |
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Cios, Grzegorz |
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Hohlmann, Marcus |
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Dudarev, A. |
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Mascagna, V. |
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Santimaria, Marco |
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Poudyal, Nabin |
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Piozzi, Antonella |
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Mørtsell, Eva Anne |
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Jin, S. |
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Noel, Cédric |
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Fino, Paolo |
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Mailley, Pascal |
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Meyer, Ernst |
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Zhang, Qi |
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Pfattner, Raphael | Brussels |
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Kooi, Bart J. |
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Babuji, Adara |
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Pauporte, Thierry |
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Walter, M.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022Perspectives on weak interactions in complex materials at different length scales
- 2020Macroscopic quantum electrodynamics and density functional theory approaches to dispersion interactions between fullerenescitations
- 2020Reliable computational prediction of the supramolecular ordering of complex molecules under electrochemical conditionscitations
- 2020High-temperature low cycle fatigue behavior of an equiatomic CoCrFeMnNi high-entropy alloycitations
- 2019Mechanochemically aminated multilayer graphene for carbon/polypropylene graft polymers and nanocompositescitations
- 2018Tuning intermolecular interaction between lignin and carbon nanotubes in fiber composites - a combined experimental and ab-initio modeling studycitations
- 2017Macroscopic superlow friction of steel and diamond-like carbon lubricated with a formanisotropic 1,3-diketonecitations
- 2015An old workhorse for new applications: Fe(dpm)(3) as a precursor for low-temperature PECVD of iron(III) oxidecitations
- 2013Ultralow friction induced by tribochemical reactions: A novel mechanism of lubrication on steel surfacescitations
- 2006Measurement of the J/ψ production cross section in 920 GeV/c fixed-target proton–nucleus interactions.
- 2006Measurement of the $J/%5Cpsi$ production cross section in 920-GeV/c fixed-target proton-nucleus interactionscitations
- 2006Improved measurement of the b-anti-b production cross section in $920-GeV$ fixed-target proton-nucleus collisionscitations
- 2005The Outer Tracker Detector of the HERA-B Experiment. Part I: Detectorcitations
- 2004Search for the flavor changing neutral current decay $D^0$ $%5Cto$ $%5Cmu^+$$ %5Cmu^-$ with the HERA-B detectorcitations
- 2003$J/%5Cpsi$ production via chi($c$) decays in 920-GeV pA interactionscitations
- 2003Inclusive $%5Cmathrm{V^0}$ production cross sections from 920 GeV fixed target proton-nucleus collisionscitations
- 2003Measurement of the $b%5Coverline{b}$ production cross section in 920 GeV fixed-target proton-nucleus collisionscitations
Places of action
article
Mechanochemically aminated multilayer graphene for carbon/polypropylene graft polymers and nanocomposites
Abstract
S.286-301 ; The two-stage mechanochemical amination of graphite by dry ball milling of graphite in a planetary ball mill under Ar followed by NH3 yields aminated multilayer graphene (AMFG) as intermediates for carbon/polymer hybrids and nanocomposites. Opposite to efficient edge-selective graphene functionalization under Ar, CO2 and N2 pressure, the onestage ball milling under NH3 pressure affords rather low N content (<0.5 wt%) and fails to reduce the graphite platelet size. According to DFT (Density Functional Theory) calculations NH3 exhibits low mobility between graphene layers and forms weak bonds to carbon which impair breakage of carbon bonds. In the two-stage ball-milling of graphite under Ar affords reactive carbon nanoparticles which react with NH3 in the second stage. With increasing milling duration of the second stage the nitrogen content increases to 3.2 wt%. As verified by XPS (X-ray photoelectron spectroscopy) measurements primary amine groups are formed which couple with various dicarboxylic anhydride groups including maleated PP to produce imidefunctionalized graphene. This is of interest to produce compatibilizers and dispersing agents for carbon/PP nanocomposites exhibiting improved mechanical properties. Two-stage mechanochemistry holds promise for carbon nanoparticle functionalization well beyond amination. ; 13 ; Nr.3