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PtRu particles supported on carbon nanofibers have been reported to have higher activity as anode catalysts in proton exchange membrane fuel cells than conventional catalysts. In the present work, density functional theory calculations are used to investigate the metal–carbon interface for different crystal facets of mono-metallic Pt and the PtRu alloy. The carbon side is modeled by graphene sheets...
Carbon nanofiber/interdigitated array circuits fabricated with as-prepared herringbone graphitic carbon nanofibers [GCNF], GCNFs surface-derivatized with 3,4′-oxydianiline functional groups [GCNF–ODA], and GCNF–poly(butyl acrylate) [GCNF–PBA] or GCNF–poly(acrylic acid) [GCNF–PAA] polymer brushes are evaluated as solid-state gas-sensing materials unsupported by a polymer matrix. Vapor detection is...
Ultradispersed diamond (UDD)/polymer brushes having excellent solution dispersibilities are prepared by atom transfer radical polymerization (ATRP) using the “grafting-from” synthesis strategy. ATRP initiators, covalently attached to oxidized surface carbon atoms of UDD aggregates using esterification chemistry, initiate polymerization of methacrylate monomers to form hydrophobic UDD/poly(iso-butyl...
The preparation and characterization of herringbone graphitic carbon nanofibers (GCNFs) surface-derivatized with reactive linker molecules derived from four diamines and three triamines is reported. Surface carbon sites of as-prepared GCNFs are oxidized to carboxylic acid groups by nitric acid and covalently bound to seven different linker molecules containing pendant amino groups using carboxylate...
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