Hierarchically Structured Non-PGM Oxygen Reduction Electrocatalyst Based on Microemulsion-Templated Silica and Pyrolyzed Iron and Cyanamide Precursors

被引：37

作者：

Artyushkova, Kateryna ^{[1
]}

Walker, Candace ^{[1
]}

Patterson, Wendy ^{[1
]}

Atanassov, Plamen ^{[1
]}

机构：

[1] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA

来源：

ELECTROCATALYSIS | 2014年 / 5卷 / 03期

基金：

美国国家科学基金会;

关键词：

ORR; Cyanamide; Hierarchical; MNC electrocatalyst; Non-PGM electrocatalyst; CATHODE CATALYSTS; METAL CATALYST; FUEL-CELLS; CARBON; XPS; ORR; METHANOL; SUPPORT;

D O I：

10.1007/s12678-014-0185-2

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：

Hierarchically structured electrocatalysts for oxygen reduction based on iron and cyanamide were synthesized using novel templating approach that leads to hierarchy of scales of pores and particles. Microemulsion process is used to generate silica template with multimodal pore distribution, which is impregnated with metal and nitrogen precursors, to create a large surface area openly structured active electrocatalysts for oxygen reduction in both acid and alkaline media. Extensive characterization using microscopic, spectroscopic, and electrochemical methods of electrocatalysts was done to understand the final catalysts structure obtained through this novel approach and its impact on activity.

引用

页码：241 / 247

页数：7

共 41 条

[11] Ordered Hierarchical Nanostructured Carbon as a Highly Efficient Cathode Catalyst Support in Proton Exchange Membrane Fuel Cell [J].

Fang, Baizeng ;

Kim, Jung Ho ;

Kim, Minsik ;

Yu, Jong-Sung .

CHEMISTRY OF MATERIALS, 2009, 21 (05) :789-796

[12] Multitechnique Characterization of a Polyaniline-Iron-Carbon Oxygen Reduction Catalyst [J].

Ferrandon, Magali ;

Kropf, A. Jeremy ;

Myers, Deborah J. ;

Artyushkova, Kateryna ;

Kramm, Ulrike ;

Bogdanoff, Peter ;

Wu, Gang ;

Johnston, Christina M. ;

Zelenay, Piotr .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (30) :16001-16013

[13] Oxygen reduction catalysts for polymer electrolyte fuel cells from the pyrolysis of iron acetate adsorbed on various carbon supports [J].

Jaouen, F ;

Marcotte, S ;

Dodelet, JP ;

Lindbergh, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (06) :1376-1386

[14] Recent advances in non-precious metal catalysis for oxygen-reduction reaction in polymer electrolyte fuel cells [J].

Jaouen, Frederic ;

Proietti, Eric ;

Lefevre, Michel ;

Chenitz, Regis ;

Dodelet, Jean-Pol ;

Wu, Gang ;

Chung, Hoon Taek ;

Johnston, Christina Marie ;

Zelenay, Piotr .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (01) :114-130

[15] Hierarchical interconnected macro-/mesoporous Co-containing N-doped carbon for efficient oxygen reduction reactions [J].

Jiang, Hongliang ;

Su, Yunhe ;

Zhu, Yihua ;

Shen, Jianhua ;

Yang, Xiaoling ;

Feng, Qian ;

Li, Chunzhong .

JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (39) :12074-12081

[16] Ordered nanoporous arrays of carbon supporting high dispersions of platinum nanoparticles [J].

Joo, SH ;

Choi, SJ ;

Oh, I ;

Kwak, J ;

Liu, Z ;

Terasaki, O ;

Ryoo, R .

NATURE, 2001, 412 (6843) :169-172

[17] Tight-binding quantum chemical molecular dynamics study on first proton transfer process of ORR catalyzed by cobalt-porphyrin complex [J].

Kasahara, Kota ;

Tsuboi, Hideyuki ;

Koyama, Michihisa ;

Endou, Akira ;

Kubo, Momoji ;

Del Carpio, Carlos A. ;

Miyamoto, Akira .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (11) :A490-A493

[18] Nature of the catalytic centers of porphyrin-based electrocatalysts for the ORR:: A correlation of kinetic current density with the site density of Fe-N4 Centers [J].

Koslowski, Ulrike I. ;

Abs-Wurmbach, Irmgard ;

Fiechter, Sebastian ;

Bogdanoff, Peter .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (39) :15356-15366

[19] Structure of the catalytic sites in Fe/N/C-catalysts for O2-reduction in PEM fuel cells [J].

Kramm, Ulrike I. ;

Herranz, Juan ;

Larouche, Nicholas ;

Arruda, Thomas M. ;

Lefevre, Michel ;

Jaouen, Frederic ;

Bogdanoff, Peter ;

Fiechter, Sebastian ;

Abs-Wurmbach, Irmgard ;

Mukerjee, Sanjeev ;

Dodelet, Jean-Pol .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (33) :11673-11688

[20] Iron-Based Catalysts with Improved Oxygen Reduction Activity in Polymer Electrolyte Fuel Cells [J].

Lefevre, Michel ;

Proietti, Eric ;

Jaouen, Frederic ;

Dodelet, Jean-Pol .

SCIENCE, 2009, 324 (5923) :71-74

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