ZnO particles of wurtzite structure as a component in ZnO/carbon nanotube composite

被引：16

作者：

Baibarac, M. ^{[1
]}

Baltog, I. ^{[1
]}

Velula, T. ^{[1
]}

Pasuk, I. ^{[1
]}

Lefrant, S. ^{[2
]}

Gautier, N. ^{[2
]}

机构：

[1] Natl Inst Mat Phys, Lab Opt & Spect, RO-77125 Bucharest, Romania

[2] Inst Mat Jean Rouxell, F-44322 Nantes, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 44期

关键词：

WALLED CARBON NANOTUBES; LITHIUM-ION BATTERIES; ZINC-OXIDE; PHOTOLUMINESCENCE PROPERTIES; OPTICAL-PROPERTIES; RAMAN-SCATTERING; NANOSTRUCTURES; NANOPARTICLES; GROWTH; ARRAYS;

D O I：

10.1088/0953-8984/21/44/445801

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Composites based on carbon nanotubes and ZnO particles with needle shapes were prepared for applications in energy storage. Depending on the temperature (85 or 25 degrees C) at which the reaction between NaOH and ZnCl(2) was carried out, particles with two different morphologies: needle-shaped (NS) and double-pyramid-shaped (DPS), respectively, are obtained. Scanning electron microscopy, photoluminescence, UV-Vis absorption spectroscopy, x-ray diffraction and Raman light scattering studies reveal that the NS and DPS particles belong to ZnO with wurtzite (WZ) structure and epsilon-Zn(OH)(2) as precursors of ZnO, respectively. Using the ZnO/carbon nanotube composite as a negative electrode and an electrolytic solution containing LiPF(6), the charge-discharge characteristics of rechargeable lithium ions cells were determined. Additional information concerning the electrochemical reactions at the interface of the two electrodes was obtained by cyclic voltammetry.

引用

页数：10

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