Transition Metal and Transition Metal Fluorides as Catalysts in MgH_2-based Nanocomposites

机译：过渡金属和过渡金属氟化物在基于MgH_2的纳米复合材料中的催化作用

获取原文

获取原文并翻译 | 示例

页面导航

摘要
著录项
相似文献
相关主题

摘要

MgH_2-based nanocomposites have been produced by the addition of a few volume % of submicron grain transition metal (Nb and Fe) or transition metal fluoride (FeF_3) to act as catalysts in nanocrystalline MgH_2. The MgH_2-based nanocomposites were produced by high-energy ball milling of the mixture MgH_2-catalyst under argon atmosphere. The resulting nanocomposites were characterised by differential scanning calorimetry and the structural evolution associated with H desorption was studied by in-situ synchrotron X-rays diffraction during heating. Decreasing desorption temperatures was observed for the following nanocomposites: MgH_2-Nb, MgH_2-Fe and MgH_2-FeF_3, this last one presenting the lowest desorption temperature reported so far for MgH_2 systems.

机译：通过添加少量（体积）的亚微米晶粒过渡金属（Nb和Fe）或过渡金属氟化物（FeF_3）以在纳米晶体MgH_2中充当催化剂，可以生产基于MgH_2的纳米复合材料。基于MgH_2的纳米复合材料是通过在氩气气氛下对混合物MgH_2-催化剂进行高能球磨制备的。通过差示扫描量热法对所得的纳米复合材料进行表征，并通过加热期间原位同步加速器X射线衍射研究与H解吸有关的结构演变。观察到以下纳米复合材料的解吸温度降低：MgH_2-Nb，MgH_2-Fe和MgH_2-FeF_3，这最后一个代表了迄今为止报道的MgH_2系统的最低解吸温度。

著录项

来源
《International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials(ISMANAM 2004); 20040822-26; Sendai(JP)》|2004年|P.299-304|共6页
会议地点 Sendai(JP)
作者
W.J.Botta F.; J.F.R. de Castro; G. Vaughan; A.R. Yavari;
展开▼
作者单位

Institut National Polytechnique de Grenoble, LTPCM (CNRS umr 5614), BP 75, St-Martin-d'Heres Campus, 38402, France;

展开▼
会议组织
原文格式 PDF
正文语种 eng
中图分类工程材料一般性问题;
关键词
Mg nanocomposites; mechanical alloying; catalytic elements;

机译：镁纳米复合材料;机械合金化;催化元素;

相似文献

外文文献
中文文献
专利

1. Interaction between a transition-metal fluoride and a transition-metal hydride: Water-mediated hydrofluoric acid evolution following fluoride solvation [J] . Chierotti M.R., Rossin A., Gobetto R., Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 2013,第21期

机译：过渡金属氟化物与过渡金属氢化物之间的相互作用：氟化物溶剂化后水介导的氢氟酸的释放
2. Transition Metal Complexes of Tetradentate and Bidentate Schiff Bases as Catalysts for Ethylene Polymerization: Effect of Transition Metal and Cocatalyst [J] . Bialek M, Czaja K, Szydlo E Journal of Polymer Science, Part A. Polymer Chemistry . 2009,第2期

机译：四齿和双齿席夫碱过渡金属配合物作为乙烯聚合催化剂：过渡金属和助催化剂的作用
3. Superposition model for ~(19)F isotropic chemical shift in ionic fluorides: from basic metal fluorides to transition metal fluoride glasses [J] . B. Bureau, G. Silly, J. Y. Buzare, Chemical Physics: A Journal Devoted to Experimental and Theoretical Research Involving Problems of Both a Chemical and Physical Nature . 1999,第1期

机译：离子氟化物〜（19）F各向同性化学位移的叠加模型：从碱性金属氟化物到过渡金属氟化物玻璃
4. Transition Metal and Transition Metal Fluorides as Catalysts in MgH_2-based Nanocomposites [C] . W.J.Botta F., J.F.R. de Castro, G. Vaughan, International Symposium on Metastable, Mechanically Alloyed and Nanocrystalline Materials . 2005

机译：过渡金属和过渡金属氟化物作为MGH_2基纳米复合材料中的催化剂
5. Synthesis of ferromagnetic nanoparticles, formic acid oxidation catalyst nanocomposites, and late-transition metal-boride intermetallics by unique synthetic methods and single-source precursors. [D] . Wellons, Matthew S. 2008

机译：通过独特的合成方法和单一来源的前驱体合成铁磁纳米颗粒，甲酸氧化催化剂纳米复合物和后期过渡金属硼化物金属间化合物。
6. Metal Fluorides Metal Chlorides and Halogenated Metal Oxides as Lewis Acidic Heterogeneous Catalysts. Providing Some Context for Nanostructured Metal Fluorides [O] . David Lennon, John M. Winfield 2017

机译：金属氟化物金属氯化物和卤化金属氧化物作为路易斯酸性多相催化剂。为纳米结构金属氟化物提供一些背景
7. Metal fluorides, metal chlorides and halogenated metal oxides as Lewis acidic heterogeneous catalysts. Providing some context for nanostructured metal fluorides [O] . Lennon David, Winfield John M. 2017

机译：金属氟化物，金属氯化物和卤化金属氧化物作为路易斯酸性非均相催化剂。为纳米结构金属氟化物提供一些背景

Transition Metal and Transition Metal Fluorides as Catalysts in MgH_2-based Nanocomposites

摘要

著录项

相似文献

相关主题

期刊订阅