An efficient and mild carboxylation of multiwall carbon nanotubes using H2O2 in the presence of hete

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A clean,fast,and facile oxidation of multiwalled carbon nanotubes (MWCNTs) by H2O2/heteropolyacid (H3PW12O40) gave highly carboxylated MWCNTs under mild conditions,at a conveniently accessible temperature.After an easy workup,the product was characterized by SEM,XRD,and FY-IR.
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