典型文献
Effect of scandium and zirconium alloying on microstructure and gaseous hydrogen storage properties of YFe3
文献摘要：
RM3 compounds (R =rare earth metals,M =transition metals) have rarely been studied for gaseous hydrogen storage applications because of unfavorable thermodynamics.In this work,the hydrogen storage properties of a single-phase YFe3 alloy were improved by non-stoichiometric composition and alloying with Sc and Zr.Only the Y1.1-yScyFe3 (y =0.22,0.33) alloys consist of a single rhombohedral phase.The Sc substitution for Y leads to the reduction in the unit cell volume of the YFe3 phase,and thus significantly increases the dehydriding equilibrium pressure and decreases the dehydrogenation tem-perature.The alloy Y0.77Sc0.33Fe3 delivers a decomposition enthalpy change of 33.54 kJ/mol and a lowest dehydrogenation temperature of 135 ℃,in comparison with 38.99 kJ/mol and 165 ℃ for the alloy Y1.1Fe3.The Zr substitution causes a similar thermodynamic destabilization effect,but the composition and microstructure of Y-Zr-Fe alloys need to be further optimized.
文献关键词：
中图分类号：
作者姓名：
Zhikun Fang;Hui Wang;Jiangwen Liu;Liuzhang Ouyang;Min Zhu
作者机构：
Key Laboratory of Advanced Energy Storage Materials of Guangdong Province,School of Materials Science and Engineering,South China University of Technology,Guangzhou 510641,China
文献出处：
引用格式：
[1]Zhikun Fang;Hui Wang;Jiangwen Liu;Liuzhang Ouyang;Min Zhu-.Effect of scandium and zirconium alloying on microstructure and gaseous hydrogen storage properties of YFe3)[J].稀土学报（英文版）,2022(03):467-472
A类：
YFe3,RM3,yScyFe3,dehydriding,77Sc0,33Fe3,1Fe3
B类：
Effect,scandium,zirconium,alloying,microstructure,gaseous,storage,properties,compounds,earth,metals,transition,have,rarely,been,studied,applications,because,unfavorable,thermodynamics,In,this,work,single,phase,were,improved,by,stoichiometric,Zr,Only,Y1,alloys,consist,rhombohedral,substitution,leads,reduction,unit,cell,volume,thus,significantly,increases,equilibrium,pressure,decreases,dehydrogenation,Y0,delivers,decomposition,enthalpy,change,kJ,lowest,temperature,comparison,causes,similar,destabilization,effect,but,need,further,optimized
AB值：
0.479834
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