NDLI: X-ray Photoelectron Spectroscopy Study of Cobalt Supported Multi-walled Carbon Nanotubes Prepared by Different Precursors

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X-ray Photoelectron Spectroscopy Study of Cobalt Supported Multi-walled Carbon Nanotubes Prepared by Different Precursors

Content Provider	Semantic Scholar
Author	Kim, Shin Dong Park, Soo-Jin Lee, Young-Seak
Copyright Year	2007
Abstract	The effect of cobalt precursor on the structure of Co supported multi-walled carbon nanotubes (MWCNTs) were studied by using X-ray photoelectron spectroscopy (XPS). MWCNTs were treated with a mixture of nitric and sulfuric acids and decorated with cobalt and/or cobalt oxides via aqueous impregnation solutions of cobalt nitrate or cobalt acetate followed by reduction in hydrogen. XPS was mainly used to investigate the phase of cobalt on MWCNTs after reduction with H2 flow at 400C 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 is found that cobalt nitrate supported MWCNTs is more dispersive and have catalytic activity than that of cobalt acetate supported MWCNTs at same preparation condition such as concentration of precursor solution and reduction environment.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://carbonlett.org/Upload/files/CARBONLETT/120-126.pdf
Language	English
Access Restriction	Open
Subject Keyword	Artificial nanoparticles Carbon Dioxide Cobalt:SCnc:Pt:Bld:Qn Dispersive partial differential equation Fertilization Hydrogen Maxillary right second molar prosthesis Nanotubes Nanotubes, Carbon Nitrates Numerous Oxides Oxygen Photoelectric effect Solutions Sulfuric Acids X-Ray Photoelectron Spectroscopy cobalt acetate cobaltous nitrate enzyme activity
Content Type	Text
Resource Type	Article

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