Nanoporous PtPd Alloy Electrocatalysts with High Activity and Stability toward Oxygen Reduction Reaction

被引：75
作者：
Duan, Huimei [1 ]
Xu, Caixia [1 ]
机构：
[1] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2015年 / 152卷
基金：
美国国家科学基金会;
关键词：
dealloying; nanoporous; PtPd alloy; electrocatalysis; oxygen reduction reaction; CATALYSTS; METHANOL; OXIDATION; ACID; PTRU; ELECTROOXIDATION; NANOPARTICLES; DESIGN;
D O I：
10.1016/j.electacta.2014.11.160
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Nanoporous (NP) PtPd alloys with three different bimetallic ratios are straightforwardly fabricated by one-step mild dealloying of PtPdAl precursor alloys in alkaline solution. These as-prepared PtPd alloys are comprised of nanoscaled bicontinuous network skeletons and interconnected hollow channels extending in all three dimensions with uniform ligament size around 5 nm. Compared with commercial Pt/C, NP-Pd, and NP-Pt catalysts, NP-PtPd alloys exhibit superior electrocatalytic activities toward oxygen reduction reaction (ORR) with much higher specific and mass activities. More importantly, NP-PtPd alloys also show superior structure stability with almost no ORR activity loss upon long-term potential scan compared with Pt/C catalyst. The ORR performance follows the order of NP-Pt75Pd25 > NP-Pt20Pd80 > NP-Pt50Pd50 > NP-Pt > Pt/C > NP-Pd. NP-PtPd alloys hold great application potential as cathode catalysts in proton exchange membrane fuel cells with the advantages of facile preparation, high-yielding, and superior ORR activities and structure durability. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：417 / 424
页数：8
相关论文
共 54 条
  • [1] Preparation and characterization of Pt-CeO2 and Pt-Pd electrocatalysts for the oxygen reduction reaction in the absence and presence of methanol in alkaline medium
    Altamirano-Gutierrez, A.
    Fernandez, A. M.
    Rodriguez Varela, F. J.
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2013, 38 (28) : 12657 - 12666
  • [2] Theoretical analysis of reactivity on Pt(111) and Pt-Pd(111) alloys
    Calvo, Sergio R.
    Balbuena, Perla B.
    [J]. SURFACE SCIENCE, 2007, 601 (21) : 4786 - 4792
  • [3] Nanoporous PdNi Bimetallic Catalyst with Enhanced Electrocatalytic Performances for Electro-oxidation and Oxygen Reduction Reactions
    Chen, Luyang
    Guo, Hai
    Fujita, Takeshi
    Hirata, Akihiko
    Zhang, Wei
    Inoue, Akihisa
    Chen, Mingwei
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (22) : 4364 - 4370
  • [4] Application of XPS to study electrocatalysts for fuel cells
    Corcoran, C. J.
    Tavassol, H.
    Rigsby, M. A.
    Bagus, P. S.
    Wieckowski, A.
    [J]. JOURNAL OF POWER SOURCES, 2010, 195 (24) : 7856 - 7879
  • [5] Nanoporous Metals for Catalytic and Optical Applications
    Ding, Yi
    Chen, Mingwei
    [J]. MRS BULLETIN, 2009, 34 (08) : 569 - 576
  • [6] Evolution of nanoporosity in dealloying
    Erlebacher, J
    Aziz, MJ
    Karma, A
    Dimitrov, N
    Sieradzki, K
    [J]. NATURE, 2001, 410 (6827) : 450 - 453
  • [7] Tungsten carbide microspheres as a noble-metal-economic electrocatalyst for methanol oxidation
    Ganesan, R
    Lee, JS
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (40) : 6557 - 6560
  • [8] Investigation of the oxygen reduction reaction on Pt-WC/C electrocatalysts in alkaline media
    Garcia, Amanda C.
    Ticianelli, Edson A.
    [J]. ELECTROCHIMICA ACTA, 2013, 106 : 453 - 459
  • [9] Synthesis of Ultrathin FePtPd Nanowires and Their Use as Catalysts for Methanol Oxidation Reaction
    Guo, Shaojun
    Zhang, Sen
    Sun, Xiaolian
    Sun, Shouheng
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (39) : 15354 - 15357
  • [10] Electrocatalytic Activity and Stability of Titania-Supported Platinum-Palladium Electrocatalysts for Polymer Electrolyte Membrane Fuel Cell
    Huang, Sheng-Yang
    Ganesan, Prabhu
    Popov, Branko N.
    [J]. ACS CATALYSIS, 2012, 2 (05): : 825 - 831
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