Comparison of hydrogen storage properties of pure Mg and milled pure Mg

Bulletin of materials science

Seong Ho Lee¹  Myoung Youp Song²  Young Jun Kwak¹  Hye Ryoung Park³ 

[1]Department of Materials Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South Korea$$Department of Materials Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South KoreaDepartment of Materials Engineering, Graduate School, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South Korea$$

[2]Division of Advanced Materials Engineering, Hydrogen & Fuel Cell Research Centre, Engineering Research Institute, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South Korea$$Division of Advanced Materials Engineering, Hydrogen & Fuel Cell Research Centre, Engineering Research Institute, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South KoreaDivision of Advanced Materials Engineering, Hydrogen & Fuel Cell Research Centre, Engineering Research Institute, Chonbuk National University, 567 Baekje-daero Deokjin-gu Jeonju 561-756, South Korea$$

[3]School of Applied Chemical Engineering, Chonnam National University, 77 Yongbong-ro Buk-gu Gwangju 500-757, South Korea$$School of Applied Chemical Engineering, Chonnam National University, 77 Yongbong-ro Buk-gu Gwangju 500-757, South KoreaSchool of Applied Chemical Engineering, Chonnam National University, 77 Yongbong-ro Buk-gu Gwangju 500-757, South Korea$$

关键词: Hydrogen absorbing materials;    pure magnesium;    mechanical alloying/milling;    microstructure;    X-ray diffraction.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Hydrogen storage properties of pure Mg were studied at 593 K under 12 bar H₂. In order to increase the hydriding and dehydriding rates, pure Mg was ground under hydrogen atmosphere (reactive mechanical grinding, RMG) and its hydrogen storage properties were subsequently investigated. Pure Mg absorbed hydrogen very slowly. At the number of cycles (ð‘�??) of 1, pure Mg absorbed 0.05 wt% H for 5 min, 0.08 wt% H for 10 min and 0.29 wt% H for 60 min at 593 K under 12 bar H₂. Activation was completed at the fifth cycle. At ð‘�?? = 6, pure Mg absorbed 1.76 wt% H for 5 min, 2.17 wt% H for 10 min and 3.40 wt% H for 60 min. The activation of pure Mg after RMG was completed at the sixth cycle. At ð‘�?? = 7, pure Mg after RMG absorbed 2.57 wt% H for 5 min, 3.21 wt% H for 10 min and 4.15 wt% H for 60 min.

【 授权许可】

Unknown