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Yuen Wu, Dingsheng Wang, Zhiqiang Niu, Pengcheng Chen, Gang Zhou and Prof. Yadong Li A Strategy for Designing a Concave Pt–Ni Alloy through Controllable Chemical Etching Angewandte Chemie International Edition 51

Article first published online: 6 NOV 2012 | DOI: 10.1002/anie.201207491

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This corrosion: Octahedral Pt–Ni alloy nanoparticles (NPs) are converted into concave Pt3Ni NPs by a coordination-assisted chemical-etching process (see scheme). The corroded concave Pt–Ni NPs have a higher density of low-coordinate atoms in steps sites, a decisive property in heterogeneous catalysis.

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