X-ray Photoelectron Spectroscopy Study of Cobalt Supported Multi-walledCarbon Nanotubes Prepared by Different Precursorss

Jeong-Min Lee; Ju Wan Kim; Im Ji Sun (임지선); Tae Jin Kim; Shin Dong Kim (김신동); Soo-Jin Park; Young-Seak Lee

X-ray Photoelectron Spectroscopy Study of Cobalt Supported Multi-walledCarbon Nanotubes Prepared by Different Precursorss

Carbon Letters
Abbr : Carbon Lett.
2007, 8(2), pp.120-126
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General

Jeong-Min Lee ¹, Ju Wan Kim ¹, Im Ji Sun ², Tae Jin Kim ³, Shin Dong Kim ⁴, Soo-Jin Park ⁵, Young-Seak Lee ¹

¹Chungnam National University
²한국화학연구원
³Jeonbuk Techno-park
⁴(주) 이앤켐솔루션
⁵Inha National University

Candidate

ABSTRACT

The effect of cobalt precursor on the structure of Co suported multi-walled carbon nanotubes (MWCNTs) were studied byusing X-ray photoelectron spectroscopy (XPS). MWCNTs were treated with a mixture of nitric and sulfuric acids anddecorated with cobalt and/or cobalt oxides via aqueous impregnation solutions of cobalt nitrate or cobalt acetate followed byreduction in hydrogen. XPS was mainly used to investigate the phase of coba 2 flow at400oC for 2 h. Higher cobalt-nanoparticle dispersion was found in the MWCNTS prepared via cobalt nitrate decomposition.A typical XPS spectrum of Co 2p showed the peaks at binding energy (BE) values equal to 781 and 797 eV, respectively. It isfound that cobalt nitrate supported MWCNTs is more dispersive and have catalytic activity than that of cobalt acetatesupported MWCNTs at same preparation condition such as concentration of precursor solution and reduction environment.

KEYWORDS

Cobalt, Catalyst, Decoration, XPS, MWCNTs1. Introductionnanotubes (CNTs) [1], structurally built of graphene cylinders, opened the possibility of research opportunities for a varietyof applications [2-5]. Diferent studies have shown the ex-cellent po

Citation status

* References for papers published after 2023 are currently being built.

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