Controlling the Catalytic Activity of Platinum‐Monolayer Electrocatalysts for Oxygen Reduction with Different Substrates
Junliang ZhangMiomir B. VukmirovicMaterials Science Department, Building 555, Brookhaven National Laboratory, Upton, NY 11973, USA,Ye XuDepartment of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI 53706, USA,Manos MavrikakisDepartment of Chemical and Biological Engineering, University of Wisconsin–Madison, 1415 Engineering Drive, Madison WI 53706 (USA), Fax: (+1) 608‐262‐5434Radoslav R. AdžićMaterials Science Department, Building 555, Brookhaven National Laboratory, Upton, NY 11973, USA,
2005en
ABI
Abstract
Peak performance: Electrochemical experiments show that the oxygen reduction reaction (ORR) on platinum monolayers supported on various transition metals exhibits a volcano-type behavior (see graph). Calculations reveal that bond-breaking occurs more easily as bond-making becomes harder, and why the Pd-supported Pt monolayer (PtML/Pd(111)) has higher ORR activity than pure Pt(111).
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