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[交流] Advanced functional materials: 关于自组装Co3O4纳米管的一篇文献已有2人参与

In Situ Generated Gas Bubble-Directed Self-Assembly: Synthesis, and Peculiar Magnetic and Electrochemical
Properties of Vertically Aligned Arrays of High-Density
Co 3 O 4 Nanotubes
A novel and versatile gas bubble induced self-assembly technique is developed
for the one-step fabrication of vertically aligned polycrystalline Co 3 O 4 nanotube
arrays (NTAs) by the rapid thermal decomposition of Co(NO 3 ) 2 · 6H 2 O on a fl at
substrate. In this protocol, the in situ generation and release of gas bubbles,
which can be regulated by elaborately adjusting the kinetic factors such as
reaction time, decomposition temperature and pressure as well as the content
of the chemically adsorbed water, play a vital role in the formation of the Co 3 O 4
NTAs. Due to the shape anisotropy, ordered hierarchically porous structure and
high surface area, the as-obtained Co 3 O 4 NTAs show unique magnetic properties
of a low Néel temperature and a large exchange bias fi eld, as well as an
initial discharge capacity up to 1293 mAh · g − 1 at 35 mA · g − 1 and the retention
of a charge capacity as high as 895.4 mAh · g − 1 after 10 cycles. This endows
them with important potential use in magnetic shielding, magnetic recording
media, and lithium ion batteries, etc. Due to the simplicity of the self-assembly
method, this process is applicable to the large-scale production of the Co 3 O 4
NTAs, and may be extended to other materials.

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附件 1 : InSituGeneratedGasBubble-DirectedSelf-Assembly_Synthesis,andPeculiarMagneticandElectrochemicalPropertiesofVerticallyAlignedArraysofHigh-DensityCo3O4Nanotubes.pdf

2012-12-16 20:03:54, 2.99 M