期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 17, 期 29, 页码 3008-3014出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b704118g
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A facile and rapid method of covalently modifying the surface of graphite powders with aminophenyl groups is described. This chemical modification strategy allows the production of bulk ( gram) quantities of amino-modified carbon powder. 4-Nitrophenyl groups are covalently attached to graphite powder via the chemical reduction of the corresponding 4-nitrobenzenediazonium tetrafluoroborate salt using aqueous hypophosphorous acid. The 4-nitrophenyl groups on the carbon surface are then reduced to the corresponding 4-aminophenyl groups using alkaline iron(II) ammonium sulfate solutions. Electrochemical and X-ray photoelectron spectroscopic characterisation is carried out at each stage of the synthesis.
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