Oxygen reduction on composite FeOx nanoparticles embedded in porous carbon

被引：8

作者：

Ha, Byeongchul ^{[1
]}

Han, Oc Hee ^{[1
,2
]}

Hwang, Ki Ju ^{[1
]}

Kim, Sechul ^{[2
]}

Rhee, Choong Kyun ^{[2
,3
]}

机构：

[1] Korea Basic Sci Inst, Anal Res Div, Daegu Ctr, Taegu 702701, South Korea

[2] Chungnam Natl Univ, Grad Sch Analyt Sci & Technol, Taejon 305764, South Korea

[3] Chungnam Natl Univ, Dept Chem, Taejon 305764, South Korea

来源：

ELECTROCHIMICA ACTA | 2011年 / 58卷

关键词：

Oxygen reduction reaction; Fuel cells; Fe-based catalysts; Electronic density of stares; Porous carbon; ELECTROLYTE FUEL-CELLS; METAL-OXIDE CATALYSTS; QUANTITATIVE-DETERMINATION; TURNOVER FREQUENCIES; METHANOL OXIDATION; CATHODE CATALYST; ACTIVE-SITES; IRON; ELECTROCATALYSTS; PHTHALOCYANINES;

D O I：

10.1016/j.electacta.2011.09.056

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Composite FeOx nanoparticles embedded in carbon were prepared by the chemical vapor deposition of CH4 on iron phthalocyanine. They showed relatively high catalytic activity towards oxygen reduction, demonstrating their potential applicability as inexpensive platinum-free cathode catalysts for use in low-temperature fuel cells. Fe oxides and Fe metal embedded in porous carbon, not nitrogen-coordinated iron compounds, were shown to be the active catalytic sites in composite FeOx nanoparticles embedded in carbon. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：422 / 426

页数：5

共 26 条

[11] CYCLIC VOLTAMMETRY OF IRON(II)-IRON(III) COUPLE IN DIMETHYLFORMAMIDE [J].

KANATHARANA, P ;

SPRITZER, MS .

ANALYTICAL CHEMISTRY, 1974, 46 (07) :958-959

[12] Catalytic activity and stability of heat-treated iron phthalocyanines for the electroreduction of oxygen in polymer electrolyte fuel cells [J].

Lalande, G ;

Faubert, G ;

Cote, R ;

Guay, D ;

Dodelet, JP ;

Weng, LT ;

Bertrand, P .

JOURNAL OF POWER SOURCES, 1996, 61 (1-2) :227-237

[13] 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

[14] Anomalous electrochemical dissolution and passivation of iron growth catalysts in carbon nanotubes [J].

Lyon, Jennifer L. ;

Stevenson, Keith J. .

LANGMUIR, 2007, 23 (22) :11311-11318

[15] Structure control of a carbon-based noble-metal-free fuel cell cathode catalyst leading to high power output [J].

Maruyama, Jun ;

Abe, Ikuo .

CHEMICAL COMMUNICATIONS, 2007, (27) :2879-2881

[16] Effect of strain on the reactivity of metal surfaces [J].

Mavrikakis, M ;

Hammer, B ;

Norskov, JK .

PHYSICAL REVIEW LETTERS, 1998, 81 (13) :2819-2822

[17] Electronic structure of Pd thin films on Re(0001) studied by high-resolution core-level and valence-band photoemission [J].

Mun, BS ;

Lee, C ;

Stamenkovic, V ;

Markovic, NM ;

Ross, PN .

PHYSICAL REVIEW B, 2005, 71 (11)

[18] Fuel cells - Methanol behavior in direct methanol fuel cells [J].

Paik, Younkee ;

Kim, Seong-Soo ;

Han, Oc Hee .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (01) :94-96

[19] Iron oxide particles are the active sites for hydrogen peroxide sensing at multiwalled carbon nanotube modified electrodes [J].

Sljukic, Biljana ;

Banks, Craig E. ;

Compton, Richard G. .

NANO LETTERS, 2006, 6 (07) :1556-1558

[20] Changing the activity of electrocatalysts for oxygen reduction by tuning the surface electronic structure [J].

Stamenkovic, Vojislav ;

Mun, Bongjin Simon ;

Mayrhofer, Karl J. J. ;

Ross, Philip N. ;

Markovic, Nenad M. ;

Rossmeisl, Jan ;

Greeley, Jeff ;

Norskov, Jens K. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2006, 45 (18) :2897-2901

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