• Abstract
• Full-Text PDF [808 KB]
• Full-Text XML
• Article Versions Notes

• Article Statistics
• Google Scholar
• Order Reprints

• Cite this article
• Export to BibTeX
• Export to EndNote

• [+] on DOAJ
• Kim, A
• Lim, S
• Peck, D
• Kim, S
• Lee, B
• Jung, D
• [+] on Google Scholar
• Kim, A
• Lim, S
• Peck, D
• Kim, S
• Lee, B
• Jung, D
• [+] on PubMed
• Kim, A
• Lim, S
• Peck, D
• Kim, S
• Lee, B
• Jung, D

•  CiteULike
•  Facebook
•  Mendeley
•  Twitter

This article is

• freely available
• re-usable

Nanomaterials 2012, 2(2), 206-216; doi:10.3390/nano2020206

Article

Preparation and Characteristics of SiO_x Coated Carbon Nanotubes with High Surface Area

Aeran Kim ^1,2 , Seongyop Lim ^1,2,* , Dong-Hyun Peck ¹ , Sang-Kyung Kim ^1,2 , Byungrok Lee ¹  and Doohwan Jung ^1,2

¹ Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea ² Advanced Energy Technology, University of Science & Technology, Daejeon 305-350, Korea

* Author to whom correspondence should be addressed.

Received: 2 May 2012; in revised form: 8 June 2012 / Accepted: 11 June 2012 / Published: 18 June 2012

(This article belongs to the Special Issue New Developments in Nanomaterial Analysis)

Download PDF Full-Text [808 KB, uploaded 18 June 2012 08:58 CEST]

Abstract: An easy method to synthesize SiO_x coated carbon nanotubes (SiO_x-CNT) through thermal decomposition of polycarbomethylsilane adsorbed on the surface of CNTs is reported. Physical properties of SiO_x-CNT samples depending on various Si contents and synthesis conditions are examined by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen isotherm, scanning electron microscope (SEM), and transmission electron microscope (TEM). Morphology of the SiO_x-CNT appears to be perfectly identical to that of the pristine CNT. It is confirmed that SiO_x is formed in a thin layer of approximately 1 nm thickness over the surface of CNTs. The specific surface area is significantly increased by the coating, because thin layer of SiO_x is highly porous. The surface properties such as porosity and thickness of SiO_x layers are found to be controlled by SiO_x contents and heat treatment conditions. The preparation method in this study is to provide useful nano-hybrid composite materials with multi-functional surface properties.

Keywords: carbon nanotubes; silicon oxide; hybrid materials; porosity

Article Statistics

Cite This Article