Abstract
Reaction of aniline with KMnO4 could produce polyaniline-supported Mn nanocomposites (Mn@PANI). In comparison with conventional method for the synthesis of PANI-supported metal nanoparticles, this reaction did not require additional oxidant. As a Mn-containing material, Mn@PANI was initially expected to be a good catalyst for oxidation reaction and its catalytic activity was tested by using the oxidative deoximation reaction. Surprisingly, instead of the expected catalytic activity, the material restrained the reaction on the contrary. It was found to be an easily removable heterogeneous free radical scavenger that could inhibit the unwanted decomposition reactions caused by free radicals so that the lifetime of the chemical products could be extended.
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