《Preparation of hydrogen-storage alloy Mg–10 wt% Fe2O3 under various milling conditions》.pdfVIP

International Journal of Hydrogen Energy 31 (2006) 43–47 /locate/ijhydene Preparation of hydrogen-storage alloy Mg–10 wt% Fe O under 2 3 various milling conditions a ,∗ a a a MyoungYoup Song , IkHyun Kwon , SungNam Kwon , ChanGi Park , HyeRyoung Parkb , Jong-Soo Baec aDivision of Advanced Materials Engineering, Research Center of Advanced Materials Development, Engineering Research Institute, Chonbuk National University, 664-14 1ga Deogjindong Deogjingu Jeonju, Chonbuk, 561-756, Republic of Korea bFaculty of Applied Chemical Engineering, College of Engineering, Chonnam National University, 300 Yongbongdong Bukgu Gwangju, 500-757, Republic of Korea cNanopowder Materials Group, Materials Technology Department, Korea Institute of Machinery Materials, 66 Sangnamdong, Changwon, Kyungnam, 641-010, Republic of Korea Available online 18 April 2005 Abstract We tried to improve the H2-sorption properties of Mg by mechanical grinding under H2 (reactive mechanical grinding) at various weight ratios of sample to ball (1/9, 1/27 and 1/45) with 10 wt% Fe2O3 . The revolution speed was 250 rpm and the milling time was 2 h. The sample Mg–10 wt% Fe O , prepared by milling at the weight ratio of sample to ball 1/45, has the