Hydrogen Sorption Behaviors of a Core–Shell Structured Mg@Fe Composite Powder
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- Zou Jianxin
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University State Key Laboratory of Metal Matrix Composite & School of Materials Science and Engineering, Shanghai Jiao Tong University
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- Long Sheng
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University
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- Zhang Lifu
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University
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- Lu Chong
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University
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- Chen Xi
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University
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- Zeng Xiaoqin
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University State Key Laboratory of Metal Matrix Composite & School of Materials Science and Engineering, Shanghai Jiao Tong University
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- Ding Wenjiang
- Shanghai Engineering Research Center of Mg Materials and Applications & National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University State Key Laboratory of Metal Matrix Composite & School of Materials Science and Engineering, Shanghai Jiao Tong University
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- タイトル別名
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- Hydrogen Sorption Behaviors of a Core–Shell Structured Mg@Fe Composite Powder
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In the present work, a Fe covered pure Mg ultrafine powder–Mg@Fe- was prepared through electroless plating of Fe on the arc plasma evaporated Mg powder in a FeCl3 n-butyl alcohol solution. The phase components, microstructure and hydrogen sorption behaviors of the Mg@Fe composite powder were investigated using XRD, TEM and PCT techniques. TEM observations revealed that those ultrafine Mg particles were covered by nano α-Fe grains reduced by Mg during electroless plating. The hydrogenation enthalpy of the Mg@Fe composite is determined to be −78 kJ/mol H2 based on PCT measurements. Meanwhile, the hydrogen absorption activation energy of Mg@Fe composite is reduced to 54.6 kJ/mol H2 and the onset desorption temperature of hydrogenated Mg@Fe is lower down to 620 K when compared to those for pure Mg powder. The improved hydrogen sorption kinetic properties of Mg@Fe composite over pure Mg powder can be mainly attributed to the catalytic effects from nano α-Fe covered on the Mg ultrafine particles.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 55 (8), 1156-1160, 2014
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679230444288
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- NII論文ID
- 130004825218
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- NII書誌ID
- AA1151294X
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 025616919
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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