Improvement in H-sorption kinetics of MgH2 powders by using fe nanoparticles generated by reactive FeF3 addition
Improvement in H-sorption kinetics of MgH2 powders by using fe nanoparticles generated by reactive FeF3 addition
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DOI：
10.1016/j.scriptamat.2004.12.020
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发表时间：
2005-04
影响因子：
6
通讯作者：
A. Yavari;A. LeMoulec;F. R. D. Castro;S. Deledda;O. Friedrichs;W. Botta;G. Vaughan;T. Klassen
中科院分区：
文献类型：
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作者：
A. Yavari;A. LeMoulec;F. R. D. Castro;S. Deledda;O. Friedrichs;W. Botta;G. Vaughan;T. Klassen
我们报道了新型纳米结构mgh2复合材料的开发，其中氟和TM催化剂通过添加TM氟化物（如FeF3）来引入。然后发生氟转移反应，生成保护性的mgf2 + Fe纳米颗粒催化剂。粉末在300℃时表现出急剧加速的h吸附动力学。可以在比使用其他催化剂的mgh2低得多的温度下获得应用可接受的h吸附速率，而不会显著损失容量。
We report the development of new nanostructured MgH2composites in which fluorine and TM catalysts are introduced through the addition of TM fluorides such as FeF3. A fluorine transfer reaction then occurs to generate protective MgF2plus Fe nanoparticles catalyst. The powders show sharply accelerated H-sorption kinetics at 300°C. H-sorption at rates acceptable for applications can be obtained at temperatures much lower than those reported for MgH2with other catalysts without significant loss of capacity.