New method for low temperature fabrication of Ni-Al alloy powder for molten carbonate fuel cell applications

Seong Cheol Jang; Byung Yong Lee; Suk Woo Nam; Hyung Chul Ham; Jonghee Han; Sung Pil Yoon; Seong Geun Oh

doi:10.1016/j.ijhydene.2014.01.097

New method for low temperature fabrication of Ni-Al alloy powder for molten carbonate fuel cell applications

Seong Cheol Jang, Byung Yong Lee, Suk Woo Nam, Hyung Chul Ham, Jonghee Han, Sung Pil Yoon, Seong Geun Oh

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

12 Citations (Scopus)

Abstract

Lump-free Ni-5 wt% Al alloy powder was successfully prepared using an AlCl₃ activator at 400 °C under vacuum. The AlCl₃ activator served as the catalyst, lowering the fabrication temperature by 1000°C compared with the temperature required for the conventional process. The Ni-Al alloy was formed by the following steps: the formation of NiAl by the reaction of the Ni surface with AlCl₂ or AlCl produced by the reaction between Al and AlCl₃, the formation of Ni₃Al by Al diffusion and reaction, and the formation of a Ni-Al solid solution by Al diffusion into the Ni matrix until the solubility limitation was reached. Although lowering the alloying temperature lengthens the reaction time, the time could be reduced by controlling the amount of AlCl₃. A single cell test and a creep test were also conducted using a green sheet of as-prepared Ni-Al alloy powder as an anode of a molten carbonate fuel cell (MCFC).

Original language	English
Pages (from-to)	12259-12265
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	39
Issue number	23
DOIs	https://doi.org/10.1016/j.ijhydene.2014.01.097
Publication status	Published - 2014 Aug 4

Bibliographical note

Funding Information:
This work was supported by the Renewable Energy R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant, funded by the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20113030030040 ), and the Global Research Laboratory Program, funded by the Ministry of Science, ICT and Future Planning of Korea .

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

Keywords

Gas-solid reaction
Low alloying temperature
Molten carbonate fuel cell
Nickel-aluminum alloy powder

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

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10.1016/j.ijhydene.2014.01.097

Cite this

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title = "New method for low temperature fabrication of Ni-Al alloy powder for molten carbonate fuel cell applications",

abstract = "Lump-free Ni-5 wt% Al alloy powder was successfully prepared using an AlCl3 activator at 400 °C under vacuum. The AlCl3 activator served as the catalyst, lowering the fabrication temperature by 1000°C compared with the temperature required for the conventional process. The Ni-Al alloy was formed by the following steps: the formation of NiAl by the reaction of the Ni surface with AlCl2 or AlCl produced by the reaction between Al and AlCl3, the formation of Ni3Al by Al diffusion and reaction, and the formation of a Ni-Al solid solution by Al diffusion into the Ni matrix until the solubility limitation was reached. Although lowering the alloying temperature lengthens the reaction time, the time could be reduced by controlling the amount of AlCl3. A single cell test and a creep test were also conducted using a green sheet of as-prepared Ni-Al alloy powder as an anode of a molten carbonate fuel cell (MCFC).",

keywords = "Gas-solid reaction, Low alloying temperature, Molten carbonate fuel cell, Nickel-aluminum alloy powder",

author = "Jang, {Seong Cheol} and Lee, {Byung Yong} and Nam, {Suk Woo} and Ham, {Hyung Chul} and Jonghee Han and Yoon, {Sung Pil} and Oh, {Seong Geun}",

note = "Funding Information: This work was supported by the Renewable Energy R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant, funded by the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20113030030040 ), and the Global Research Laboratory Program, funded by the Ministry of Science, ICT and Future Planning of Korea . Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

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AU - Ham, Hyung Chul

AU - Han, Jonghee

AU - Yoon, Sung Pil

AU - Oh, Seong Geun

N1 - Funding Information: This work was supported by the Renewable Energy R&D Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant, funded by the Ministry of Trade, Industry & Energy, Republic of Korea (No. 20113030030040 ), and the Global Research Laboratory Program, funded by the Ministry of Science, ICT and Future Planning of Korea . Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/8/4

Y1 - 2014/8/4

N2 - Lump-free Ni-5 wt% Al alloy powder was successfully prepared using an AlCl3 activator at 400 °C under vacuum. The AlCl3 activator served as the catalyst, lowering the fabrication temperature by 1000°C compared with the temperature required for the conventional process. The Ni-Al alloy was formed by the following steps: the formation of NiAl by the reaction of the Ni surface with AlCl2 or AlCl produced by the reaction between Al and AlCl3, the formation of Ni3Al by Al diffusion and reaction, and the formation of a Ni-Al solid solution by Al diffusion into the Ni matrix until the solubility limitation was reached. Although lowering the alloying temperature lengthens the reaction time, the time could be reduced by controlling the amount of AlCl3. A single cell test and a creep test were also conducted using a green sheet of as-prepared Ni-Al alloy powder as an anode of a molten carbonate fuel cell (MCFC).

AB - Lump-free Ni-5 wt% Al alloy powder was successfully prepared using an AlCl3 activator at 400 °C under vacuum. The AlCl3 activator served as the catalyst, lowering the fabrication temperature by 1000°C compared with the temperature required for the conventional process. The Ni-Al alloy was formed by the following steps: the formation of NiAl by the reaction of the Ni surface with AlCl2 or AlCl produced by the reaction between Al and AlCl3, the formation of Ni3Al by Al diffusion and reaction, and the formation of a Ni-Al solid solution by Al diffusion into the Ni matrix until the solubility limitation was reached. Although lowering the alloying temperature lengthens the reaction time, the time could be reduced by controlling the amount of AlCl3. A single cell test and a creep test were also conducted using a green sheet of as-prepared Ni-Al alloy powder as an anode of a molten carbonate fuel cell (MCFC).

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KW - Nickel-aluminum alloy powder

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New method for low temperature fabrication of Ni-Al alloy powder for molten carbonate fuel cell applications

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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