TY - JOUR A1 - Girard-Lauriault, Pierre-Luc A1 - Illgen, René A1 - Ruiz, J.-C. A1 - Wertheimer, M. R. A1 - Unger, Wolfgang T1 - Surface functionalization of graphite and carbon nanotubes by vacuum-ultraviolet photochemical reactions N2 - Graphite and multiwall carbon nanotube surfaces were functionalized by vacuum-ultraviolet induced photochemistry in NH3 or O2, in order to introduce amino- (NH2) or hydroxyl (OH) functionalities, respectively. Modified surfaces were characterized by X-ray photoelectron spectroscopy (XPS), which showed significant incorporation of nitrogen (N) and oxygen (O) at the materials’ surface. While high-resolution XP spectra did not yield much specific information about the incorporated functional groups, chemical derivatization with 4-trifluoromethyl benzaldehyde and trifluoroacetic anhydride accompanied by XPS enabled quantification of NH2 and OH groups, respectively. Using near edge X-ray absorption fine structure spectroscopy, we assessed the conservation of the aromatic structure following functionalization treatments. KW - Carbon nanotubes KW - Graphite KW - Vacuum ultraviolet photochemistry KW - Surface functionalization KW - Amino groups KW - Hydroxyl KW - Derivatization PY - 2012 U6 - https://doi.org/10.1016/j.apsusc.2012.03.012 SN - 0169-4332 SN - 1873-5584 VL - 258 IS - 22 SP - 8448 EP - 8454 PB - North-Holland CY - Amsterdam AN - OPUS4-26233 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -