Development of stabilized NiO cathodes for molten carbonate fuel cell

Bo Hyun Ryu, I. G. Jang, K. H. Moon, Jonghee Han, T. H. Lim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The stabilized NiO cathodes were fabricated by Li-Co-O coated Ni powder which was synthesized by hydrothermal treatment in 4-6 M LiOH·H2O. The morphology of Li-Co-O coating was characterized by spectroscopic techniques to investigate the optimal synthesis conditions such as temperature, reaction time, and reactant molarity. Li-Co-O coating was consisted of LiCoO2, Co(OH)2, and CoOOH, and the amount of LiCoO2 was increased with increasing time and molarity of LiOH·H2O. The mechanical properties of the stabilized NiO cathodes were also measured to evaluate the stability in molten carbonate fuel cell (MCFC) applications. The bending strength of the stabilized cathode was significantly improved compared to the typical NiO cathode. The pores of the stabilized cathode showed typical bimodal distribution in size due to the micropores developed by coated materials, and the overall porosity was higher than 75% under optimal synthesis conditions, which is also promising for MCFC applications.

Original languageEnglish
Pages (from-to)389-395
Number of pages7
JournalJournal of Fuel Cell Science and Technology
Volume3
Issue number4
DOIs
Publication statusPublished - 2006 Nov 1
Externally publishedYes

Fingerprint

Molten carbonate fuel cells (MCFC)
Cathodes
Coated materials
Coatings
Bending strength
Powders
Porosity
Mechanical properties

Keywords

  • Hydrothermal reaction
  • Li-Co-O coated ni powder
  • Mechanical strength
  • Stabilized NiO cathode

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Development of stabilized NiO cathodes for molten carbonate fuel cell. / Ryu, Bo Hyun; Jang, I. G.; Moon, K. H.; Han, Jonghee; Lim, T. H.

In: Journal of Fuel Cell Science and Technology, Vol. 3, No. 4, 01.11.2006, p. 389-395.

Research output: Contribution to journalArticle

Ryu, Bo Hyun ; Jang, I. G. ; Moon, K. H. ; Han, Jonghee ; Lim, T. H. / Development of stabilized NiO cathodes for molten carbonate fuel cell. In: Journal of Fuel Cell Science and Technology. 2006 ; Vol. 3, No. 4. pp. 389-395.
@article{113dde5892724fee95548e9b91de2f9d,
title = "Development of stabilized NiO cathodes for molten carbonate fuel cell",
abstract = "The stabilized NiO cathodes were fabricated by Li-Co-O coated Ni powder which was synthesized by hydrothermal treatment in 4-6 M LiOH·H2O. The morphology of Li-Co-O coating was characterized by spectroscopic techniques to investigate the optimal synthesis conditions such as temperature, reaction time, and reactant molarity. Li-Co-O coating was consisted of LiCoO2, Co(OH)2, and CoOOH, and the amount of LiCoO2 was increased with increasing time and molarity of LiOH·H2O. The mechanical properties of the stabilized NiO cathodes were also measured to evaluate the stability in molten carbonate fuel cell (MCFC) applications. The bending strength of the stabilized cathode was significantly improved compared to the typical NiO cathode. The pores of the stabilized cathode showed typical bimodal distribution in size due to the micropores developed by coated materials, and the overall porosity was higher than 75{\%} under optimal synthesis conditions, which is also promising for MCFC applications.",
keywords = "Hydrothermal reaction, Li-Co-O coated ni powder, Mechanical strength, Stabilized NiO cathode",
author = "Ryu, {Bo Hyun} and Jang, {I. G.} and Moon, {K. H.} and Jonghee Han and Lim, {T. H.}",
year = "2006",
month = "11",
day = "1",
doi = "10.1115/1.2349518",
language = "English",
volume = "3",
pages = "389--395",
journal = "Journal of Fuel Cell Science and Technology",
issn = "1550-624X",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "4",

}

TY - JOUR

T1 - Development of stabilized NiO cathodes for molten carbonate fuel cell

AU - Ryu, Bo Hyun

AU - Jang, I. G.

AU - Moon, K. H.

AU - Han, Jonghee

AU - Lim, T. H.

PY - 2006/11/1

Y1 - 2006/11/1

N2 - The stabilized NiO cathodes were fabricated by Li-Co-O coated Ni powder which was synthesized by hydrothermal treatment in 4-6 M LiOH·H2O. The morphology of Li-Co-O coating was characterized by spectroscopic techniques to investigate the optimal synthesis conditions such as temperature, reaction time, and reactant molarity. Li-Co-O coating was consisted of LiCoO2, Co(OH)2, and CoOOH, and the amount of LiCoO2 was increased with increasing time and molarity of LiOH·H2O. The mechanical properties of the stabilized NiO cathodes were also measured to evaluate the stability in molten carbonate fuel cell (MCFC) applications. The bending strength of the stabilized cathode was significantly improved compared to the typical NiO cathode. The pores of the stabilized cathode showed typical bimodal distribution in size due to the micropores developed by coated materials, and the overall porosity was higher than 75% under optimal synthesis conditions, which is also promising for MCFC applications.

AB - The stabilized NiO cathodes were fabricated by Li-Co-O coated Ni powder which was synthesized by hydrothermal treatment in 4-6 M LiOH·H2O. The morphology of Li-Co-O coating was characterized by spectroscopic techniques to investigate the optimal synthesis conditions such as temperature, reaction time, and reactant molarity. Li-Co-O coating was consisted of LiCoO2, Co(OH)2, and CoOOH, and the amount of LiCoO2 was increased with increasing time and molarity of LiOH·H2O. The mechanical properties of the stabilized NiO cathodes were also measured to evaluate the stability in molten carbonate fuel cell (MCFC) applications. The bending strength of the stabilized cathode was significantly improved compared to the typical NiO cathode. The pores of the stabilized cathode showed typical bimodal distribution in size due to the micropores developed by coated materials, and the overall porosity was higher than 75% under optimal synthesis conditions, which is also promising for MCFC applications.

KW - Hydrothermal reaction

KW - Li-Co-O coated ni powder

KW - Mechanical strength

KW - Stabilized NiO cathode

UR - http://www.scopus.com/inward/record.url?scp=33846306690&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846306690&partnerID=8YFLogxK

U2 - 10.1115/1.2349518

DO - 10.1115/1.2349518

M3 - Article

AN - SCOPUS:33846306690

VL - 3

SP - 389

EP - 395

JO - Journal of Fuel Cell Science and Technology

JF - Journal of Fuel Cell Science and Technology

SN - 1550-624X

IS - 4

ER -