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The Preparation and Characterization of a Composite Material of Multi-walled Carbon Nanotubes/Metal Phthalocyanine

DONG Guo-Fa SHEN Shui-Fa PAN Hai-Bo (Institute of Research on Functional Materials;Fuzhou University;Fuzhou 350002;China)

  The composite material of multi-walled carbon nanotubes/metal phthalocyanine may have potential applications in diverse fields,for example in nanodevices,sensors. Raw multi-walled carbon nanotubes(MWCNTs)were first refluxed in 2.6 M nitric acid, followed by washing with de-ionized water,and dried.Then the purified multi-wailed carbon nanotubes(MWCNTs)were refluxed in concentrated nitric acid for 12 hours at 130℃.After this treatment,carboxylic acid groups are expected to be the predominant species on the opened caps and defect sites.At the same time,cobalt(Ⅱ)tetranitrophthalocyanine(CoTNPc)was synthesized in pentanol under the protection of nitrogen gas,using 4-nitrophthalonitrile and anhydrous cobalt chloride as raw material and DBU as catalyst.Next the cobalt(Ⅱ)tetraaminophthalocyanine (CoTAPc)was produced from the reduction of CoTNPc,using Na_2S.9H_2O as reductant.……