Rational Development of Ternary Alloy Electrocatalysts

Journal Article · Sun Jan 01 00:00:00 EST 2012 · Journal of Physical Chemistry Letters

DOI:https://doi.org/10.1021/jz300563z· OSTI ID:1049862

Wang, Chao ^[1]; Li, Dongguo ^[1]; Chi, Miaofang ^[2]; Pearson, John ^[1]; Rankin, Rees ^[1]; Greeley, Jeff ^[1]; Duan, Zhiyao ^[3]; Wang, Guofeng ^[4]; Van der Vliet, Dennis ^[1]; More, Karren Leslie ^[2]; Markovic, Nenad ^[1]; Stamenkovic, Vojislav ^[1]

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1. Argonne National Laboratory (ANL)
2. ORNL
3. University of Pittsburgh
4. Indiana University and Purdue University

Improving the efficiency of electrocatalytic reduction of oxygen represents one of the main challenges for the development of renewable energy technologies. Here, we report the systematic evaluation of Pt-ternary alloys (Pt{sub 3}(MN){sub 1} with M, N = Fe, Co, or Ni) as electrocatalysts for the oxygen reduction reaction (ORR). We first studied the ternary systems on extended surfaces of polycrystalline thin films to establish the trend of electrocatalytic activities and then applied this knowledge to synthesize ternary alloy nanocatalysts by a solvothermal approach. This study demonstrates that the ternary alloy catalysts can be compelling systems for further advancement of ORR electrocatalysis, reaching higher catalytic activities than bimetallic Pt alloys and improvement factors of up to 4 versus monometallic Pt.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Shared Research Equipment Collaborative Research Center
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1049862
• Journal Information: Journal of Physical Chemistry Letters, Vol. 3, Issue 12; ISSN 1948-7185
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALLOYS
CATALYSTS
EFFICIENCY
ELECTROCATALYSTS
EVALUATION
OXYGEN
THIN FILMS