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Dr. Shaojun Guo, Sen Zhang, Liheng Wu and Prof. Shouheng Sun Co/CoO Nanoparticles Assembled on Graphene for Electrochemical Reduction of Oxygen Angewandte Chemie International Edition 51

Version of Record online: 16 OCT 2012 | DOI: 10.1002/anie.201206152

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Good support: A solution-phase self-assembly approach leads to Co/CoO core/shell nanoparticles deposited on graphene (G–Co/CoO NPs). Their catalytic activity for the oxygen reduction reaction in O2-saturated KOH solution depends on the thickness of the CoO shell (green in picture). The optimized G–Co/CoO NPs have a comparative activity and better stability than the commercial Pt NP catalyst supported on carbon (C–Pt).

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