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The oxidative polymerization of aniline on composite 2B pencil graphite was accomplished in phosphoric acid (H 3 PO 4 ) containing 0.06M calcium phosphate (Ca 3 (PO 4 ) 2 ). The shifting of three pairs of redox peaks by 250mV to the negative direction has increased antioxidant capacity of polyaniline (PAni). This was realised through reaction with 1,1-diphenyl-2-picrylhydrazyl...
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