Effects of fine Cr2O3 addition on Mg’s hydrogen-storage performance

Myoung Youp Song; Sung Nam Kwon; Hye Ryoung Park; Daniel R. Mummd

Journal of Industrial and Engineering Chemistry, Vol.17, No.2, 167-169, March, 2011

DOI10.1016/j.jiec.2011.02.021 Export Citation

Effects of fine Cr2O3 addition on Mg’s hydrogen-storage performance

Myoung Youp Song^†, Sung Nam Kwon¹, Hye Ryoung Park², and Daniel R. Mummd³

Division of Advanced Materials Engineering, Department of Hydrogen and Fuel Cells, Hydrogen & Fuel Cell Research Center, Engineering Research Institute, Chonbuk National University, 664-14 1ga Deogjindong Deogjingu, Jeonju 561-756, Republic of Korea
¹Department of Hydrogen and Fuel Cells, Chonbuk National University, 664-14 1ga Deogjindong Deogjingu, Jeonju 561-756, Republic of Korea
²Faculty of Applied Chemical Engineering, Chonnam National University, 300 Yongbongdong Bukgu, Gwangju 500-757, Republic of Korea
³Department of Chemical Engineering and Materials Science, University of California Irvine, CA 92697-2575, USA

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We prepared nano-structured Cr2O3 by spray conversion, and we used it as an oxide to add to Mg to improve the hydriding and dehydriding rates of Mg. A sample Mg-10 wt% Cr2O3 by spray conversion was prepared by mechanical grinding under H2 (reactive mechanical grinding, RMG) in a planetary ball mill. We also prepared samples Mg-10 wt% Cr2O3 purchased, and pure Mg by RMG. The hydrogen-storage characteristics of these samples were investigated and compared.

Keywords:Hydrogen-storage characteristics of Mg;Cr2O3 addition;Spray conversion;Reactive mechanical grinding;Hydriding and dehydriding rates

[References]

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Song MY, Kwon IH, Kwon SN, Park CG, Park HR, Bae JS, Int. J. Hydrogen Energy., 31, 43 (2006)
Song MY, Baek SH, Bobet JL, Hong SH, Int. J. Hydrogen Energy., 35, 10366 (2010)
Song MY, J. Mater. Sci., 30(5), 1343 (1995)

[1] Dornheim M, Klassen T, Encyclopedia Electrochem. Power Sour., 459 (2009)

[2] Sakintuna B, Lamari-Darkrim F, Hirscher M, Int. J. Hydrogen Energy., 32(9), 1121 (2007)

[3] Bobet JL, Akiba E, Nakamura Y, Darriet B, Int. J. Hydrogen Energy., 25, 987 (2000)

[4] Huot J, Tremblay ML, Schulz R, J. Alloys Compd., 356, 603 (2003)

[5] Imamura H, Kusuhara M, Minami S, Matsumoto M, Masanari K, Sakata Y, Itoh K, Fukunaga T, Acta Mater., 51(20), 6407 (2003)

[6] Oelerich W, Klassen T, Bormann R, J. Alloys Compd., 322, L5 (2001)

[7] Dehouche Z, Klassen T, Oelerich W, Goyette J, Bose TK, Schulz R, J. Alloys Compd., 347, 319 (2002)

[8] Barkhordarian G, Klassen T, Bormann R, Scr. Mater., 49, 213 (2003)

[9] Yavari AR, LeMoulec A, deCastro FR, Deledda S, Friedrichs O, Botta WJ, Vaughan G, Klassen T, Fernandez A, Kvick A, Scr. Mater., 52(8), 719 (2005)

[10] Polanski M, Bystrzycki J, Plocinski T, Int. J. Hydrogen Energy., 33(7), 1859 (2008)

[11] Cullity BD, Elements of X-ray Diffraction, Addision Wesley Pub. Co. Inc., New York, P102. (1978)

[12] Song MY, Kwon IH, Kwon SN, Park CG, Park HR, Bae JS, Int. J. Hydrogen Energy., 31, 43 (2006)

[13] Song MY, Baek SH, Bobet JL, Hong SH, Int. J. Hydrogen Energy., 35, 10366 (2010)

[14] Song MY, J. Mater. Sci., 30(5), 1343 (1995)