Guoqiang He

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Nanosized graphene quantum dots were prepared by acid etching of carbon fibers and used as effective substrate supports for platinum nanoparticles which were synthesized by thermolytic reduction of platinum(II) chloride in ethylene glycol. Transmission electron microscopic measurements showed that the resulting nanocomposite (Pt/G) particles exhibited an(More)
Silver nanoparticles capped by a variety of organic ligands (i.e., 1-hexanethiol, 1-octyne, and 4-trifluoro-methylphenyl fragments) were synthesized by a chemical reduction route, with the resulting nanoparticles denoted as AgSC6, AgHC8, and AgPhCF3, respectively. The nanoparticle structures were characterized by using a variety of techniques including NMR,(More)
1-Octyne-stabilized palladium nanoparticles (PdHC8, core dia. 2.50 ± 0.28 nm) were prepared by a simple reduction procedure. FTIR studies showed that the self-assembly of 1-octyne onto the Pd nanoparticle surfaces involved the effective breaking of the terminal H C bonds and the formation of Pd–vinylidene interfacial linkages by a tautomeric rearrangement(More)
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