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침전법을 활용한 Co-Ni 전극의 제조와 용융탄산염 연료전지에의 그 적용
Preparation of Co-Ni electrodes by precipitation method and their application to molten carbonate fuel cell

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Authors
김시열; Devianto, Hary; 류보현; 함형철; 한종희; 윤성필; 남석우; 임태훈; 이호인
Issue Date
2006
Publisher
The Korean Society of Industrial Engineering Chemistry ;
한국공업화학회
Citation
Applied Chemistry, 10 (2006) 525-528
Keywords
침전법Co-Ni 전극용융탄산염연료전지
Abstract
In-situ lithiated NiO has been as a conventional cathode material of molten carbonate fuel cell(MCFC). However, this material has a weakness for commercialization of MCFC because NiO is spontaneously dissolved into the electrolyte during the operation and makes a short circuit of Ni between cathode and anode. In this research, therefore, Co(OH)2-coated Ni powder was prepared by precipitation method with controlling pH at low temperature and atmospheric pressure. Modified cathode was fabricated by a conventional tape casting method and sintered at 700 ℃ in an H2/N2 atmosphere. Based on characterization result, the modified electrode was composed of Co-Ni solid solution with high mechanical strength. Pore size distribution and porosity were suitable for the cathode of MCFC. According to the result of dissolution analysis, Ni solubility of the modified cathode was 33%, which is lower than that of conventional cathode. In addition, the modified electrode showed a good performance in a single cell operation.
ISSN
1226-8801
Language
Korean
URI
http://hdl.handle.net/10371/61315

http://www.cheric.org/PDF/AC/AC10/AC10-2-0525.pdf
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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