Dendrimer-encapsulated Pd nanoparticles anchored on carbon nanotubes for electro-catalytic hydrazine oxidation

被引：55

作者：

Shen, Ying ^{[1
]}

Xu, Qin ^{[1
]}

Gao, Huan ^{[1
]}

Zhu, Ningning ^{[1
]}

机构：

[1] Shanghai Normal Univ, Dept Chem, Coll Life & Environm Sci, Shanghai 200234, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2009年 / 11卷 / 06期

基金：

中国博士后科学基金;

关键词：

Dendrimers-encapsulated Pd nanoparticles; CNTs; Electrocatalysts; Hydrazine; RHODIUM-COMPLEXED DENDRIMERS; HYDROFORMYLATION REACTIONS; METAL NANOPARTICLES; GOLD NANOPARTICLES; SIZE; MONODISPERSE; HYDROGENATION; REDUCTION;

D O I：

10.1016/j.elecom.2009.05.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

This study describes a facile method for preparing amine-terminated poly(amidoamine) (G4-NH2)-encapsulated palladium nanocatailysts with carbon nanotubes as a support. The Pd2+/G4-NH2 complexes are synthesized by a template approach in which PdCl42- ions are extracted into the interior of G4-NH2 dendrimers, and then bonded on multi-walled carbon nanotubes (MWNTs) support through dendrimer covalent linkage. Conversion of Pd2+/G4-NH2 into dendrimer-encapsulated nanoparticles was achieved by the addition of NaBH4. Transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-vis spectroscopy confirmed that the size-monodisperse Pd nanoparticles anchored on MWNTs was about 2 nm in diameter. The obtained Pd/G4-NH2/MWNT nanocomposites exhibit high electro-catalytic activity for the hydrazine oxidation by cyclic voltammetry. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1329 / 1332

页数：4

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