title: Preparation and Characteristics of SiOxCoated Carbon Nanotubes with High Surface Area.
abstract: An easy method to synthesize SiOxcoated carbon nanotubes (SiOx-CNT) through thermal decomposition of polycarbomethylsilane adsorbed on the surface of CNTs is reported. Physical properties of SiOx-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 SiOx-CNT appears to be perfectly identical to that of the pristine CNT. It is confirmed that SiOxis 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 SiOxis highly porous. The surface properties such as porosity and thickness of SiOxlayers are found to be controlled by SiOxcontents and heat treatment conditions. The preparation method in this study is to provide useful nano-hybrid composite materials with multi-functional surface properties.
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. aeran6608@naver.com.|Advanced Energy Technology, University of Science & Technology, Daejeon 305-350, Korea. aeran6608@naver.com.
authors.forename: Aeran
authors.initials: A
authors.lastname: Kim
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. sylim@kier.re.kr.|Advanced Energy Technology, University of Science & Technology, Daejeon 305-350, Korea. sylim@kier.re.kr.
authors.forename: Seongyop
authors.initials: S
authors.lastname: Lim
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. dhpeck@kier.re.kr.
authors.forename: Dong-Hyun
authors.initials: DH
authors.lastname: Peck
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. ksk@kier.re.kr.|Advanced Energy Technology, University of Science & Technology, Daejeon 305-350, Korea. ksk@kier.re.kr.
authors.forename: Sang-Kyung
authors.initials: SK
authors.lastname: Kim
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. brlee@kier.re.kr.
authors.forename: Byungrok
authors.initials: B
authors.lastname: Lee
authors.affiliation: Fuel Cell Research Center, Korea Institute of Energy Research, Daejeon 305-343, Korea. doohwan@kier.re.kr.|Advanced Energy Technology, University of Science & Technology, Daejeon 305-350, Korea. doohwan@kier.re.kr.
authors.forename: Doohwan
authors.initials: D
authors.lastname: Jung
keywords: carbon nanotubes; hybrid materials; porosity; silicon oxide