Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts.

Wang, C; Chi, M; Li, D; van der Vliet, D; Wang, G; Lin, Q; Mitchell, J; More, K L; Markovic, N M; Stamenkovic, V R

doi:10.1021/cs200328z

Title: Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts.

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Abstract

Alloying has shown enormous potential for tailoring the atomic and electronic structures, and improving the performance of catalytic materials. Systematic studies of alloy catalysts are, however, often compromised by inhomogeneous distribution of alloying components. Here we introduce a general approach for the synthesis of monodispersed and highly homogeneous Pt-bimetallic alloy nanocatalysts. Pt{sub 3}M (where M = Fe, Ni, or Co) nanoparticles were prepared by an organic solvothermal method and then supported on high surface area carbon. These catalysts attained a homogeneous distribution of elements, as demonstrated by atomic-scale elemental analysis using scanning transmission electron microscopy. They also exhibited high catalytic activities for the oxygen reduction reaction (ORR), with improvement factors of 2-3 versus conventional Pt/carbon catalysts. The measured ORR catalytic activities for Pt{sub 3}M nanocatalysts validated the volcano curve established on extended surfaces, with Pt{sub 3}Co being the most active alloy.

Authors:

Wang, C; Chi, M; Li, D; van der Vliet, D; Wang, G; Lin, Q; Mitchell, J; More, K L; Markovic, N M; Stamenkovic, V R ^[1]

Materials Science Division

Publication Date:: Sat Jan 01 00:00:00 EST 2011

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC); EE

OSTI Identifier:: 1030903

Report Number(s):: ANL/MSD/JA-70815
Journal ID: ISSN 2155-5435; TRN: US201124%%529

DOE Contract Number:: DE-AC02-06CH11357

Resource Type:: Journal Article

Journal Name:: ACS Catalysis

Additional Journal Information:: Journal Volume: 1; Journal Issue: 10; Journal ID: ISSN 2155-5435

Country of Publication:: United States

Language:: ENGLISH

Subject:: 30 DIRECT ENERGY CONVERSION; ALLOYS; CARBON; CATALYSTS; DISTRIBUTION; ELECTROCATALYSTS; ELECTRONIC STRUCTURE; FUEL CELLS; OXYGEN; PERFORMANCE; SCANNING ELECTRON MICROSCOPY; SURFACE AREA; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY

Citation Formats


                    Wang, C, Chi, M, Li, D, van der Vliet, D, Wang, G, Lin, Q, Mitchell, J, More, K L, Markovic, N M, Stamenkovic, V R, Oak Ridge Nat. Lab.), Brown Univ.), and Univ. Pittsburgh). Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts..  United States: N. p., 2011. 
        Web.  doi:10.1021/cs200328z.

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                    Wang, C, Chi, M, Li, D, van der Vliet, D, Wang, G, Lin, Q, Mitchell, J, More, K L, Markovic, N M, Stamenkovic, V R, Oak Ridge Nat. Lab.), Brown Univ.), & Univ. Pittsburgh). Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts..  United States.  https://doi.org/10.1021/cs200328z

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                    Wang, C, Chi, M, Li, D, van der Vliet, D, Wang, G, Lin, Q, Mitchell, J, More, K L, Markovic, N M, Stamenkovic, V R, Oak Ridge Nat. Lab.), Brown Univ.), and Univ. Pittsburgh). 2011.  
        "Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts.".  United States.  https://doi.org/10.1021/cs200328z.

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@article{osti_1030903,

  title        = {Synthesis of homogeneous Pt-bimetallic nanoparticles as highly efficient electrocatalysts.},

  author       = {Wang, C and Chi, M and Li, D and van der Vliet, D and Wang, G and Lin, Q and Mitchell, J and More, K L and Markovic, N M and Stamenkovic, V R and Oak Ridge Nat. Lab.) and Brown Univ.) and Univ. Pittsburgh)},

  abstractNote = {Alloying has shown enormous potential for tailoring the atomic and electronic structures, and improving the performance of catalytic materials. Systematic studies of alloy catalysts are, however, often compromised by inhomogeneous distribution of alloying components. Here we introduce a general approach for the synthesis of monodispersed and highly homogeneous Pt-bimetallic alloy nanocatalysts. Pt{sub 3}M (where M = Fe, Ni, or Co) nanoparticles were prepared by an organic solvothermal method and then supported on high surface area carbon. These catalysts attained a homogeneous distribution of elements, as demonstrated by atomic-scale elemental analysis using scanning transmission electron microscopy. They also exhibited high catalytic activities for the oxygen reduction reaction (ORR), with improvement factors of 2-3 versus conventional Pt/carbon catalysts. The measured ORR catalytic activities for Pt{sub 3}M nanocatalysts validated the volcano curve established on extended surfaces, with Pt{sub 3}Co being the most active alloy.},

  doi          = {10.1021/cs200328z},

  url          = {https://www.osti.gov/biblio/1030903},
  journal      = {ACS Catalysis},

  issn         = {2155-5435},

  number       = 10,

  volume       = 1,

  place        = {United States},

  year         = {Sat Jan 01 00:00:00 EST 2011},

  month        = {Sat Jan 01 00:00:00 EST 2011}

}

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