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Manganese dioxide was coated on multiwall carbon nanotubes-supported PtRu particles to prepare the MnO 2 /PtRu/CNT catalyst by a facile oxidation–reduction method. The prepared catalyst showed a high stability for electrocatalytic oxidation of methanol. After 2000 potential cycles, 55% activity still remained for MnO 2 /PtRu/CNT catalyst, while only 30% activity remained for PtRu/CNT,...
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