Effect of Ti Compounds on Hydrogen Desorption/Absorption of LiNH_2/LiAlH_2/MgH_2
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概要
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The effect of Ti compounds on H2 desorption/ absorption of LiNH2/LiAlH4/MgH2 was investigated. The formation of NH3 from the decomposition of LiNH2 was suppressed by adding LiAlH4 and MgH2 to LiNH2. In addition, the onset desorption temperature of LiNH2/LiAlH4/MgH2 was lower than that of pure LiNH2, whose onset desorption temperature is approximately 473 K. It was observed that the reversibility of the ternary mixture improved when Ti compounds (TiO2, TiCl3, and Ti) were doped into it. The Ti-doped mixture exhibited the highest reversible H2 capacity (0.4 wt%) at 573 K. Small peaks corresponding to Mg(AlH4)2 and Mg(NH2)2 were revealed from the XRD patterns of the ternary mixture, and the presence of reversible phases in the mixture were indicated from these peaks.
- 2010-03-01
著者
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Kitiyanan Boonyarach
The Petroleum And Petrochemical College Chulalongkorn University
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Siangsai Atsadawuth
The Petroleum and Petrochemical College, Chulalongkorn University
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Suttisawat Yindee
The Petroleum and Petrochemical College, Chulalongkorn University
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Sridechprasat Pattaraporn
The Petroleum and Petrochemical College, Chulalongkorn University
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RANGSUNVIGIT Pramoch
The Petroleum and Petrochemical College, Chulalongkorn University
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KULPRATHIPANJA Santi
UOP LLC
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