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Self-ignition combustion synthesis of TiFe_[1-x]Mn_[x] hydrogen storage alloy

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Title: Self-ignition combustion synthesis of TiFe_[1-x]Mn_[x] hydrogen storage alloy
Authors: Yasuda, Naoto Browse this author
Wakabayashi, Ryuta Browse this author
Sasaki, Shino Browse this author
Okinaka, Noriyuki Browse this author
Akiyama, Tomohiro Browse this author →KAKEN DB
Keywords: Hydrogen storage alloy
Combustion synthesis
Dual plateau
Activation treatment
Issue Date: Nov-2009
Publisher: Elsevier Ltd.
Journal Title: International Journal of Hydrogen Energy
Volume: 34
Issue: 22
Start Page: 9122
End Page: 9127
Publisher DOI: 10.1016/j.ijhydene.2009.08.102
Abstract: The paper describes the self-ignition combustion synthesis (SICS) of the hydrogen storage alloy TiFe_[1-x]Mn_[x] (X = 0, 0.1, 0.2, 0.3, and 0.5) in a hydrogen atmosphere, where the hydrogenation properties of the products are mainly examined. in the experiments, the well-mixed powders of Ti, Fe, and Mn in the molar ratio of 1:1-X:X were uniformly heated up to 1473 K, and then were cooled naturally in pressurized hydrogen at 0.9 MPa. All products were successfully synthesized by utilizing the exothermic reaction, which occurred at around 1358 K. The XRD analysis showed that SICS generated TiFe_[1-x]Mn_[x] in the range of X value from 0 to 0.3. All SICSed products absorbed hydrogen smoothly at 298 K at an initial pressure of 4.1 MPa. Most significantly, TiFe0.8Mn0.2 improved the dual plateau property. The results revealed that SICS was quite effective for producing the hydrogen storage alloy TiFe_[1-x]Mn_[x].
Type: article (author version)
Appears in Collections:エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 秋山 友宏

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