A new candidate cathode material as (Co/Mg)-coated Ni powder for molten carbonate fuel cell

Eunjoo Park; Mingzi Hong; Hyunsuk Lee; Minhyuk Kim; Keon Kim

doi:10.1016/j.jpowsour.2004.11.031

A new candidate cathode material as (Co/Mg)-coated Ni powder for molten carbonate fuel cell

Eunjoo Park, Mingzi Hong, Hyunsuk Lee, Minhyuk Kim, Keon Kim

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

Co/Mg solid solution coated Ni powder, where Mg-doped LiCoO₂ is coated on NiO in molten carbonate, has been used as a new cathode material to reduce the solubility of NiO and to maintain the advantages of NiO cathode. The (Co/Mg)-coated NiO cathode was prepared by a coating Co/Mg solid solution on the surface of the Ni powder using a PVA assisted sol-gel method. The phase changes of the (Co/Mg)-coated Ni powder after immersed into Li/K eutectic carbonate mixtures at 550 °C ∼ 850 °C for 48 h was performed by XRD and Raman. SEM was used to study the particle morphologies. Co/Mg solid solution was coated on the surface of the Ni powder and Li(NiCoMg)O₂ is formed on NiO in molten carbonate. It is expected that the Li(NiCoMg)O₂ phase will reduce the solubility of NiO cathode in molten carbonate.

Original language	English
Pages (from-to)	84-92
Number of pages	9
Journal	Journal of Power Sources
Volume	143
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jpowsour.2004.11.031
Publication status	Published - 2005 Apr 27

Bibliographical note

Funding Information:
This study was supported by the Korea Electric Power Corporation.

Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.

Keywords

(Co/Mg)-coated NiO cathode
MCFC
Sol-gel method
Solubility

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2004.11.031

Cite this

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abstract = "Co/Mg solid solution coated Ni powder, where Mg-doped LiCoO2 is coated on NiO in molten carbonate, has been used as a new cathode material to reduce the solubility of NiO and to maintain the advantages of NiO cathode. The (Co/Mg)-coated NiO cathode was prepared by a coating Co/Mg solid solution on the surface of the Ni powder using a PVA assisted sol-gel method. The phase changes of the (Co/Mg)-coated Ni powder after immersed into Li/K eutectic carbonate mixtures at 550 °C ∼ 850 °C for 48 h was performed by XRD and Raman. SEM was used to study the particle morphologies. Co/Mg solid solution was coated on the surface of the Ni powder and Li(NiCoMg)O2 is formed on NiO in molten carbonate. It is expected that the Li(NiCoMg)O2 phase will reduce the solubility of NiO cathode in molten carbonate.",

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AU - Park, Eunjoo

AU - Hong, Mingzi

AU - Lee, Hyunsuk

AU - Kim, Minhyuk

AU - Kim, Keon

PY - 2005/4/27

Y1 - 2005/4/27

N2 - Co/Mg solid solution coated Ni powder, where Mg-doped LiCoO2 is coated on NiO in molten carbonate, has been used as a new cathode material to reduce the solubility of NiO and to maintain the advantages of NiO cathode. The (Co/Mg)-coated NiO cathode was prepared by a coating Co/Mg solid solution on the surface of the Ni powder using a PVA assisted sol-gel method. The phase changes of the (Co/Mg)-coated Ni powder after immersed into Li/K eutectic carbonate mixtures at 550 °C ∼ 850 °C for 48 h was performed by XRD and Raman. SEM was used to study the particle morphologies. Co/Mg solid solution was coated on the surface of the Ni powder and Li(NiCoMg)O2 is formed on NiO in molten carbonate. It is expected that the Li(NiCoMg)O2 phase will reduce the solubility of NiO cathode in molten carbonate.

AB - Co/Mg solid solution coated Ni powder, where Mg-doped LiCoO2 is coated on NiO in molten carbonate, has been used as a new cathode material to reduce the solubility of NiO and to maintain the advantages of NiO cathode. The (Co/Mg)-coated NiO cathode was prepared by a coating Co/Mg solid solution on the surface of the Ni powder using a PVA assisted sol-gel method. The phase changes of the (Co/Mg)-coated Ni powder after immersed into Li/K eutectic carbonate mixtures at 550 °C ∼ 850 °C for 48 h was performed by XRD and Raman. SEM was used to study the particle morphologies. Co/Mg solid solution was coated on the surface of the Ni powder and Li(NiCoMg)O2 is formed on NiO in molten carbonate. It is expected that the Li(NiCoMg)O2 phase will reduce the solubility of NiO cathode in molten carbonate.

KW - (Co/Mg)-coated NiO cathode

KW - MCFC

KW - Sol-gel method

KW - Solubility

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EP - 92

JO - Journal of Power Sources

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A new candidate cathode material as (Co/Mg)-coated Ni powder for molten carbonate fuel cell

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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