Deactivation of SiO2 supported Ni catalysts by structural change in the direct internal reforming reaction of molten carbonate fuel cell

Won Jun Jang; Hak Min Kim; Jae Oh Shim; Seong Yeun Yoo; Kyung Won Jeon; Hyun Suk Na; Yeol Lim Lee; Da We Lee; Hyun Seog Roh; Wang Lai Yoon

doi:10.1016/j.catcom.2017.07.028

Deactivation of SiO₂ supported Ni catalysts by structural change in the direct internal reforming reaction of molten carbonate fuel cell

Won Jun Jang, Hak Min Kim, Jae Oh Shim, Seong Yeun Yoo, Kyung Won Jeon, Hyun Suk Na, Yeol Lim Lee, Da We Lee, Hyun Seog Roh, Wang Lai Yoon

Division of Environmental Engineering

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

7 Citations (Scopus)

Abstract

A direct internal reforming (DIR) reaction for a molten carbonate fuel cell (MCFC) is carried out using SiO₂ supported catalysts, which are known to be a highly stable in catalytic reactions. The SiO₂ supported Ni catalysts rapidly deactivate in DIR-MCFC. To elucidate the mechanism of the catalyst deactivation, various characteristic analyses (XRD, BET, H₂-chemisorption, FT-IR, and SEM) of calcined and used catalysts are employed. The co-existence of H₂O and K causes the formation of the non-active nickel oxide and silica hydrate resulting in the significant decrease of Ni dispersion and BET surface area.

Original language	English
Pages (from-to)	44-47
Number of pages	4
Journal	Catalysis Communications
Volume	101
DOIs	https://doi.org/10.1016/j.catcom.2017.07.028
Publication status	Published - 2017

Bibliographical note

Funding Information:
This work was conducted under the framework of research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy, Korea (MOTIE) of the Republic of Korea (No. 20164030201250).

Publisher Copyright:
© 2017 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)
Process Chemistry and Technology

Access to Document

10.1016/j.catcom.2017.07.028

Cite this

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title = "Deactivation of SiO2 supported Ni catalysts by structural change in the direct internal reforming reaction of molten carbonate fuel cell",

abstract = "A direct internal reforming (DIR) reaction for a molten carbonate fuel cell (MCFC) is carried out using SiO2 supported catalysts, which are known to be a highly stable in catalytic reactions. The SiO2 supported Ni catalysts rapidly deactivate in DIR-MCFC. To elucidate the mechanism of the catalyst deactivation, various characteristic analyses (XRD, BET, H2-chemisorption, FT-IR, and SEM) of calcined and used catalysts are employed. The co-existence of H2O and K causes the formation of the non-active nickel oxide and silica hydrate resulting in the significant decrease of Ni dispersion and BET surface area.",

author = "Jang, {Won Jun} and Kim, {Hak Min} and Shim, {Jae Oh} and Yoo, {Seong Yeun} and Jeon, {Kyung Won} and Na, {Hyun Suk} and Lee, {Yeol Lim} and Lee, {Da We} and Roh, {Hyun Seog} and Yoon, {Wang Lai}",

note = "Funding Information: This work was conducted under the framework of research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy, Korea (MOTIE) of the Republic of Korea (No. 20164030201250). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

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T1 - Deactivation of SiO2 supported Ni catalysts by structural change in the direct internal reforming reaction of molten carbonate fuel cell

AU - Jang, Won Jun

AU - Kim, Hak Min

AU - Shim, Jae Oh

AU - Yoo, Seong Yeun

AU - Jeon, Kyung Won

AU - Na, Hyun Suk

AU - Lee, Yeol Lim

AU - Lee, Da We

AU - Roh, Hyun Seog

AU - Yoon, Wang Lai

N1 - Funding Information: This work was conducted under the framework of research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry and Energy, Korea (MOTIE) of the Republic of Korea (No. 20164030201250). Publisher Copyright: © 2017 Elsevier B.V.

PY - 2017

Y1 - 2017

N2 - A direct internal reforming (DIR) reaction for a molten carbonate fuel cell (MCFC) is carried out using SiO2 supported catalysts, which are known to be a highly stable in catalytic reactions. The SiO2 supported Ni catalysts rapidly deactivate in DIR-MCFC. To elucidate the mechanism of the catalyst deactivation, various characteristic analyses (XRD, BET, H2-chemisorption, FT-IR, and SEM) of calcined and used catalysts are employed. The co-existence of H2O and K causes the formation of the non-active nickel oxide and silica hydrate resulting in the significant decrease of Ni dispersion and BET surface area.

AB - A direct internal reforming (DIR) reaction for a molten carbonate fuel cell (MCFC) is carried out using SiO2 supported catalysts, which are known to be a highly stable in catalytic reactions. The SiO2 supported Ni catalysts rapidly deactivate in DIR-MCFC. To elucidate the mechanism of the catalyst deactivation, various characteristic analyses (XRD, BET, H2-chemisorption, FT-IR, and SEM) of calcined and used catalysts are employed. The co-existence of H2O and K causes the formation of the non-active nickel oxide and silica hydrate resulting in the significant decrease of Ni dispersion and BET surface area.

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