Localized Pd overgrowth on cubic Pt nanocrystals for enhanced electrocatalytic oxidation of formic acid

被引:377
作者
Lee, Hyunjoo [1 ,2 ,3 ]
Habas, Susan E. [1 ,2 ]
Somorjai, Gabor A. [1 ,2 ]
Yang, Peidong [1 ,2 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA
[3] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea
关键词
D O I
10.1021/ja800656y
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Binary Pt/Pd nanoparticles were synthesized by localized overgrowth of Pd on cubic Pt seeds for the investigation of electrocatalytic formic acid oxidation. The binary particles exhibited much less self-poisoning and a lower activation energy relative to Pt nanocubes, consistent with the single crystal study.
引用
收藏
页码:5406 / +
页数:3
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共 18 条
  • [1] The electro-oxidation of formic acid on Pt-Pd single crystal bimetallic surfaces
    Arenz, M
    Stamenkovic, V
    Schmidt, TJ
    Wandelt, K
    Ross, PN
    Markovic, NM
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (19) : 4242 - 4251
  • [2] Bonding and motional aspects of CO adsorbed on the surface of Pt nanoparticles decorated with Pd
    Babu, PK
    Kim, HS
    Chung, JH
    Oldfield, E
    Wieckowski, A
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (52) : 20228 - 20232
  • [3] Formic acid oxidation on ultrathin Pd films on Au(hkl) and Pt(hkl) electrodes
    Baldauf, M
    Kolb, DM
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (27) : 11375 - 11381
  • [4] Polyol synthesis of platinum nanostructures: Control of morphology through the manipulation of reduction kinetics
    Chen, JY
    Herricks, T
    Xia, YN
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (17) : 2589 - 2592
  • [5] Electro-oxidation of formic acid catalyzed by FePt nanoparticles
    Chen, Wei
    Kim, Jaemin
    Sun, Shouheng
    Chen, Shaowei
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (23) : 2779 - 2786
  • [6] Shaping binary metal nanocrystals through epitaxial seeded growth
    Habas, Susan E.
    Lee, Hyunjoo
    Radmilovic, Velimir
    Somorjai, Gabor A.
    Yang, Peidong
    [J]. NATURE MATERIALS, 2007, 6 (09) : 692 - 697
  • [7] Structural effects of electrochemical oxidation of formic acid on single crystal electrodes of palladium
    Hoshi, N
    Kida, K
    Nakamura, M
    Nakada, M
    Osada, K
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (25) : 12480 - 12484
  • [8] Characterization and application of electrodeposited Pt, Pt/Pd, and Pd catalyst structures for direct formic acid micro fuel cells
    Jayashree, RS
    Spendelow, JS
    Yeom, J
    Rastogi, C
    Shannon, MA
    Kenis, PJA
    [J]. ELECTROCHIMICA ACTA, 2005, 50 (24) : 4674 - 4682
  • [9] Cyclic voltammograms for H on Pt(111) and Pt(100) from first principles
    Karlberg, G. S.
    Jaramillo, T. F.
    Skulason, E.
    Rossmeisl, J.
    Bligaard, T.
    Norskov, J. K.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 99 (12)
  • [10] Morphological control of catalytically active platinum nanocrystals
    Lee, Hyunjoo
    Habas, Susan E.
    Kweskin, Sasha
    Butcher, Derek
    Somorjai, Gabor A.
    Yang, Peidong
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (46) : 7824 - 7828