A Three-Dimensional Gold-Decorated Nanoporous Copper Core-Shell Composite for Electrocatalysis and Nonenzymatic Biosensing

被引：155

作者：

Chen, L. Y. ^{[1
]}

Fujita, T. ^{[1
]}

Ding, Y. ^{[2
]}

Chen, M. W. ^{[1
]}

机构：

[1] Tohoku Univ, Adv Inst Mat Res, World Premier Int WPI Res Ctr, Sendai, Miyagi 9808577, Japan

[2] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 14期

关键词：

HIGH CATALYTIC-ACTIVITY; GLUCOSE; OXIDATION; NANOPARTICLES; METHANOL; ELECTRODES; STABILITY; PLATINUM; ENZYME;

D O I：

10.1002/adfm.201000326

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bimetallic core-shell nanostructures have attracted increasing attention due to their low material costs along with enhanced chemico-physical properties in comparison with their monometallic counterparts. Here, a novel gold. decorated nanoporous copper (Au@NPC) core-shell composite fabricated by a facile in situ hydrometallurgy approach is reported. Thin gold shells with a controllable thickness are homogeneously deposited onto the internal surfaces of 3D nanoporous copper via a spontaneous displacement reaction while nanoporous copper is utilized as a reduction agent as well as 3D template and substrate. The resulting inexpensive core-shell nanostructure exhibits significant electrocatalytic activity for the oxidation of methanol and high non-enzymatic sensitivity in detecting glucose.

引用

页码：2279 / 2285

页数：7

共 29 条

[11] Novel Nanoporous Au-Pd Alloy with High Catalytic Activity and Excellent Electrochemical Stability [J].

Lang, X. Y. ;

Guo, H. ;

Chen, L. Y. ;

Kudo, A. ;

Yu, J. S. ;

Zhang, W. ;

Inoue, A. ;

Chen, M. W. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (06) :2600-2603

[12] Biocatalytic carbon paste sensors based on a mediator pasting liquid [J].

Lawrence, NS ;

Deo, RP ;

Wang, J .

ANALYTICAL CHEMISTRY, 2004, 76 (13) :3735-3739

[13] Hydrogen bubble dynamic template synthesis of porous gold for nonenzymatic electrochemical detection of glucose [J].

Li, Ying ;

Song, Yan-Yan ;

Yang, Chen ;

Xia, Xing-Hua .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (05) :981-988

[14] Characterization of carbon-supported AuPt nanoparticles for electrocatalytic methanol oxidation reaction [J].

Luo, J ;

Njoki, PN ;

Lin, Y ;

Mott, D ;

Wang, LY ;

Zhong, CJ .

LANGMUIR, 2006, 22 (06) :2892-2898

[15] Detection of glucose at 2 fM concentration [J].

Mano, N ;

Heller, A .

ANALYTICAL CHEMISTRY, 2005, 77 (02) :729-732

[16] Nonenzymatic glucose detection using mesoporous platinum [J].

Park, S ;

Chung, TD ;

Kim, HC .

ANALYTICAL CHEMISTRY, 2003, 75 (13) :3046-3049

[17] Surface enhanced Raman scattering of nanoporous gold: Smaller pore sizes stronger enhancements [J].

Qian, L. H. ;

Yan, X. Q. ;

Fujita, T. ;

Inoue, A. ;

Chen, M. W. .

APPLIED PHYSICS LETTERS, 2007, 90 (15)

[18] CAN CONTINUOUS GLUCOSE MONITORING BE USED FOR THE TREATMENT OF DIABETES [J].

REACH, G ;

WILSON, GS .

ANALYTICAL CHEMISTRY, 1992, 64 (06) :A381-A386

[19] Potentiometric sensors based on the inductive effect on the pKa of poly(aniline):: A nonenzymatic glucose sensor [J].

Shoji, E ;

Freund, MS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (14) :3383-3384

[20] Mechanisms and applications of plasmon-induced charge separation at TiO2 films loaded with gold nanoparticles [J].

Tian, Y ;

Tatsuma, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (20) :7632-7637

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