Palladium Nanowires Synthesized in Hexagonal Mesophases: Application in Ethanol Electrooxidation

被引：131

作者：

Ksar, Faygal ^{[1
]}

Surendran, Geetarani ^{[1
]}

Ramos, Laurence ^{[2
]}

Keita, Bineta ^{[1
]}

Nadjo, Louis ^{[1
]}

Prouzet, Eric ^{[3
,4
]}

Beaunier, Patricia ^{[5
]}

Hagege, Agnes ^{[6
]}

Audonnet, Fabrice ^{[1
]}

Remita, Hynd ^{[1
]}

机构：

[1] Univ Paris 11, Chim Phys Lab, CNRS, UMR 8000, F-91405 Orsay, France

[2] Univ Montpellier 2, Lab Colloides Verres & Nanomat, CNRS, UMR 5587, F-34095 Montpellier 05, France

[3] CNRS, Inst Europeen Membranes, ENSCM UM2, UMR 5635, F-34293 Montpellier, France

[4] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada

[5] Univ Paris 06, CNRS, Lab React Surface, UMR 7609, F-75252 Paris 05, France

[6] DSA, Inst Pluridisciplinaire Hubert Curien, F-67087 Strasbourg, France

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 08期

关键词：

SHAPE-CONTROLLED SYNTHESIS; PLATINUM NANOPARTICLES; SELECTIVE HYDROGENATION; CATALYTIC-ACTIVITY; COUPLING REACTIONS; PD; LIQUID; NANOSTRUCTURES; PARTICLES; NANOTUBES;

D O I：

10.1021/cm803492j

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：

Palladium nanowires (of length a few tens of nanometers) are synthesized in a hexagonal mesophase formed by a quaternary system (Pd-doped water, surfactant, cosurfactant, and oil) by electron beam irradiation. The mesophases can be doped by high concentrations of palladium (0.1 M) without any disturbance of the structure of the mesophases which allows the quantitative synthesis of 1D Pd nanostructures. We found an increase in the average length of the nanowires with the amount of cosurfactant (pentanol) that assists the reduction/growth processes. The electrocatalytic oxidation of ethanol was selected as a test reaction in alkaline medium where Pd is known to be among the best electrode materials. We found that the Pd nanowires exhibit both a very important electrocatalytic activity for ethanol oxidation and a very high stability.

引用

页码：1612 / 1617

页数：6

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