Nanoporous PdFe alloy as highly active and durable electrocatalyst for oxygen reduction reaction

被引：58

作者：

Han, Baohai ^{[1
]}

Xu, Caixia ^{[1
]}

机构：

[1] Univ Jinan, Sch Chem & Chem Engn, Key Lab Chem Sensing & Anal Univ Shandong, Jinan 250022, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 32期

基金：

美国国家科学基金会;

关键词：

Nanoporous; Dealloying; Palladium; Electrocatalysis; Oxygen reduction reaction; CATALYSTS; METAL; PLATINUM; FE; SUPPORTLESS; FABRICATION; NANOWIRES; OXIDATION; ORR; CO;

D O I：

10.1016/j.ijhydene.2014.09.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nanoporous PdFe (NP-PdFe) alloy with uniform structure size and controllable bimetallic ratio was easily fabricated by one-step mild dealloying from PcIFeAl precursor alloy. NP-PdFe consisted of nanoscaled interconnected network skeleton with bicontinuous hollow channels extending in all three dimensions. Compared with NP-Pd and commercial Pt/C catalysts, the NP-PdPe exhibits superior electrocatalytic activity for oxygen-reduction reaction (ORR) with enhanced specific and mass activities. Electrocatalytic measurements indicated that NP-PdFe possesses higher catalytic durability than Pt/C with the less loss of ORR activity and electrochemical active surface area upon long term potential scan. NP-PdFe alloy also shows higher methanol tolerance relative to Pt/C catalyst. XPS and DFT calculations suggest that the downshift of Pd d-band center after alloying with Fe makes favorable reaction kinetics for ORR with decreased adsorption energy of 0 and OH on Pd surface. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：18247 / 18255

页数：9

共 52 条

[1]

Adzic R, 1998, FRONT ELECT, P197

[2] Supportless Silver Nanowires as Oxygen Reduction Reaction Catalysts for Hydroxide-Exchange Membrane Fuel Cells [J].

Alia, Shaun M. ;

Duong, Kathlynne ;

Liu, Toby ;

Jensen, Kurt ;

Yan, Yushan .

CHEMSUSCHEM, 2012, 5 (08) :1619-1624

[3] Platinum and Non-Platinum Nanomaterials for the Molecular Oxygen Reduction Reaction [J].

Alonso-Vante, Nicolas .

CHEMPHYSCHEM, 2010, 11 (13) :2732-2744

[4] Platinum-Based Nanostructured Materials: Synthesis, Properties, and Applications [J].

Chen, Aicheng ;

Holt-Hindle, Peter .

CHEMICAL REVIEWS, 2010, 110 (06) :3767-3804

[5] Nanoporous PdNi Bimetallic Catalyst with Enhanced Electrocatalytic Performances for Electro-oxidation and Oxygen Reduction Reactions [J].

Chen, Luyang ;

Guo, Hai ;

Fujita, Takeshi ;

Hirata, Akihiko ;

Zhang, Wei ;

Inoue, Akihisa ;

Chen, Mingwei .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (22) :4364-4370

[6] Supportless Pt and PtPd nanotubes as electrocatalysts for oxygen-reduction reactions [J].

Chen, Zhongwei ;

Waje, Mahesh ;

Li, Wenzhen ;

Yan, Yushan .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (22) :4060-4063

[7] Mechanically activated Pt-Ni and Pt-Co alloys as electrocatalysts in the oxygen reduction reaction [J].

Cortes-Escobedo, Claudia A. ;

Gonzalez-Huerta, Rosa de G. ;

Bolarin-Miro, Ana M. ;

Sanchez de Jesus, Felix ;

Zhu, Q. ;

Canton, S. E. ;

Suarez-Alcantara, Karina ;

Tufino-Velazquez, M. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (29) :16722-16730

[8] DISTINCTION BETWEEN INTERMEDIATES PRODUCED IN MAIN AND SIDE ELECTRODIC REACTIONS [J].

DAMJANOVIC, A ;

GENSHAW, MA ;

BOCKRIS, JO .

JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (11) :4057-+

[9] Nanoporous Metals for Catalytic and Optical Applications [J].

Ding, Yi ;

Chen, Mingwei .

MRS BULLETIN, 2009, 34 (08) :569-576

[10] Effect of transition metal (M: Fe, Co or Mn) for the oxygen reduction reaction with non-precious metal catalysts in acid medium [J].

Dominguez, C. ;

Perez-Alonso, F. J. ;

Salam, M. Abdel ;

Gomez de la Fuente, J. L. ;

Al-Thabaiti, S. A. ;

Basahel, S. N. ;

Pena, M. A. ;

Fierro, J. L. G. ;

Rojas, S. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2014, 39 (10) :5309-5318

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