Synthetic Tuning of the Catalytic Properties of Au-Fe3O4 Nanoparticles

被引：275

作者：

Lee, Youngmin ^{[1
]}

Angel Garcia, Miguel ^{[2
]}

Huls, Natalie A. Frey ^{[1
]}

Sun, Shouheng ^{[1
]}

机构：

[1] Brown Univ, Dept Chem, Providence, RI 02912 USA

[2] CSIC, Inst Ceram & Vidrio, E-28040 Madrid, Spain

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 07期

关键词：

electrochemistry; gold; heterogeneous catalysis; hydrogen peroxide reduction; nanoparticles; SOL-GEL NETWORK; GOLD NANOPARTICLES; HYDROGEN-PEROXIDE; CO OXIDATION; ELECTROCHEMICAL SENSOR; HORSERADISH-PEROXIDASE; MODIFIED ELECTRODE; FACILE SYNTHESIS; CARBON-MONOXIDE; ACTIVE GOLD;

D O I：

10.1002/anie.200906130

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

("Figure Presented") Dumbbell-like Au-Fe3O4 nanoparticles and their single-component counterparts, Au and Fe 3O4, were compared regarding their H2O 2 reduction capability. The Au-Fe3O4 nanoparticles are catalytically more active, which is attributed to polarization effects from Au to Fe3O4. This activity can be further tuned by the size of the nanoparticles. © 2010 Wiley-VCH Verlag GmbH &. Co. KGaA,.

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页码：1271 / 1274

页数：4

相关论文

共 42 条

[1]

[Anonymous], ANGEW CHEM

[2]

Intracellular iron, but not copper, plays a critical role in hydrogen peroxide-induced DNA damage [J].

Barbouti, A ;

Doulias, PT ;

Zhu, BZ ;

Frei, B ;

Galaris, D .

FREE RADICAL BIOLOGY AND MEDICINE, 2001, 31 (04) :490-498

[3]

Catalytic behavior of Co3O4 in electroreduction of H2O2 [J].

Cao, Dianxue ;

Chao, Jundang ;

Sun, Limei ;

Wang, Guiling .

JOURNAL OF POWER SOURCES, 2008, 179 (01) :87-91

[4]

The structure of catalytically active gold on titania [J].

Chen, MS ;

Goodman, DW .

SCIENCE, 2004, 306 (5694) :252-255

[5]

Support effect in high activity gold catalysts for CO oxidation [J].

Comotti, M ;

Li, WC ;

Spliethoff, B ;

Schüth, F .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (03) :917-924

[6]

A one-step method to construct a third-generation biosensor based on horseradish peroxidase and gold nanoparticles embedded in silica sol-gel network on gold modified electrode [J].

Di, JW ;

Shen, CP ;

Peng, SH ;

Tu, YF ;

Li, SJ .

ANALYTICA CHIMICA ACTA, 2005, 553 (1-2) :196-200

[7]

Direct electrochemistry and electrocatalysis of heme proteins immobilized on gold nanoparticles stabilized by chitosan [J].

Feng, JJ ;

Zhao, G ;

Xu, JJ ;

Chen, HY .

ANALYTICAL BIOCHEMISTRY, 2005, 342 (02) :280-286

[8]

Intrinsic peroxidase-like activity of ferromagnetic nanoparticles [J].

Gao, Lizeng ;

Zhuang, Jie ;

Nie, Leng ;

Zhang, Jinbin ;

Zhang, Yu ;

Gu, Ning ;

Wang, Taihong ;

Feng, Jing ;

Yang, Dongling ;

Perrett, Sarah ;

Yan, Xiyun .

NATURE NANOTECHNOLOGY, 2007, 2 (09) :577-583

[9]

Gold/titania interfaces and their role in carbon monoxide oxidation [J].

Grunwaldt, JD ;

Baiker, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (06) :1002-1012

[10]

Synthesis and electrochemical applications of gold nanoparticles [J].

Guo, Shaojun ;

Wang, Erkang .

ANALYTICA CHIMICA ACTA, 2007, 598 (02) :181-192

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