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 Wysłany: Czw 22:13, 02 Gru 2010 Temat postu: MBT shoes sale Reaction ball milling of Mg-based h |
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Reaction ball milling of Mg-based hydrogen storage alloy composite
Hop powder phase composition can be prepared for the MgH2, Mg (A1H4) 2 nano-sized Mg-based composite hydrogen storage material. (2) synthesis reaction by milling Mg powder and Al powder, pre-prepared magnesium-based composite hydrogen storage material for the hydrogenation reaction, the first Mg + H2 a MgH2, MgH2 and then some, H2 reaction of Mg (AII-I4) 2. (3) the prepared magnesium-based composite hydrogen storage material in a continuous heating process,[link widoczny dla zalogowanych], the hydrogen in the reaction sequence: First, Mg (A1H4) 2 a MgH2 +2 AJ +3 H2; then MgH2 a Mg + H2; final reaction Mg and A1 generated Mgl7All2. (4) MgH2 synthesized by this method the initial hydrogen temperature 175 \Acknowledgements: I thank the Ministry of Education in the New Century Talents Scheme and the China Postdoctoral Science Foundation of China porcelain help References: 【1] Xiezhao Ming,[link widoczny dla zalogowanych], ZHANG Sheng-tao, Pan Fu-sheng. 【J]. Functional Materials, 2003,[link widoczny dla zalogowanych],34 (4): 357.360. 【2] Luo Xiaodong, Zhang, Jin Xiaolei, et al. 【J】. Materials Review, 2007,21 (5A) :118-12O. 【3] AresJR, Aguey-ZinsouK-F. 【J]. JournalofAlloysandCompounds, 2o07 ,434-435 :729-733. 【4] Gu Zhihua, Wang Yuping, Ma Kuang, et al. 【J]. Metals, 2006,30 (121:49-53. 【5] FichtnerM, FuhrO, KircherO. 【J] J. JournalofALloysandCompounds ,2003,418:356-357. 【6] KimY. 【J]. JournalofAlloysandCompounds, 2006,[link widoczny dla zalogowanych], 422:283287. Luo Xiaodong et al: Reaction ball milling of Mg-based composite hydrogen storage alloy 1627SynthesisofMg-basedhydrogenstoragecompositematerialbyreactiveballmillingLU0Xiao-dong, ZHANGJing, BAIChen-guang, YANWei, PANFu-sheng (CollegeofMaterialsScienceandEngineering, ChongqingUniversity, Chongqing400044,[link widoczny dla zalogowanych], China) Abstract: ThereactivesynthsisprocessofMgandpretreatedA1powders (mainlycomposedofA1andNi ) inhighlypurehydrogenatmosphere (99.999%) wasinvestigatedbymeansofX-raydiffraction (XRD). thermogravimetricanddifferentialscanningcalorimetry (TG-DSC). Theeffectofreactiveballmillingsynthesisontheproductsandthedesorbingbehaviorswereanalyzed.NanosizeMg-basedhydrogenstoragecomposite (MgH2andMg (A1H4) 2) couldbedirectlysynthesizedbyMgandpretreatedA1powders, whichhavelowerhydrogendesorptiontemperature.Thehydrogendesorpfionmechanismwasalsodiscussed.Keywords: reactiveballmillinglhydrogenstoragematerials; Mg (AIH4) 2; MgH2
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