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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 17, 2004
Accepted December 13, 2004

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Development of Carbon Dioxide Adsorbents using Carbon Materials Prepared from Coconut Shell

Seok-Jin Son Jung-Sik Choi Ko-Yeon Choo Sun-Dal Song¹ Savithri Vijayalakshmi² Tae-Hwan Kim^†

Korea Institute of Energy Research (KIER), P.O.Box No.103, Yusong-gu, Daejeon 305-343, Korea ¹Department of Physics, Hanseo University, Chungnam 356-820, Korea ²RSIC, Indian Institute of Technology, Powai, Bombay-400 076, India

thkim@kier.re.kr

Korean Journal of Chemical Engineering, March 2005, 22(2), 291-297(7), 10.1007/BF02701500

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Abstract

Coconut shell, being a good carbon precursor and having a regular porous structure, was chosen for production of carbonic materials in this work. Metal doping on the coconut char was used to develop catalytic centers for hydrocarbon cracking and thereby obtain a product with good microporosity. Magnesium, calcium, cobalt, copper and nickel doping on the coconut char was done by soaking the coconut char in the aqueous solutions of the respective metal salt and further calcining. The characterization of the product samples was done by the measurement of surface area, adsorption capacity of CO2, N2, CH4, and SEM analysis. The micro pore area obtained by using CO2 adsorption at 298 K was found to be >400 m2/g for samples prepared from coconut char impregnated with metal. The adsorption capacity of magnesium-doped sample was found to be 98 mg/g, whereas that for a sample prepared from non-impregnated coconut char was 55 mg/g. SEM analysis was conducted to study the morphology and nature of the samples prepared.

Keywords

Metal Loading Diffusivity Carbonic Material Coconut Char CMS

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