Vol 7, No 8 (2016) > Chemical Engineering >

Desorption Temperature Characteristic of Mg-based Hydrides Catalyzed by Nano-SiO2 Prepared by High Energy Ball Milling

Zulkarnain Jalil, Adi Rahwanto, Farid Mulana, Mustanir Mustanir


Abstract: Magnesium-based hydrogen
storage alloy is one of the most attractive hydrogen storage materials for fuel
cell-powered vehicle application. However, a high desorption temperature and
slow kinetics limit its practical application. Extensive efforts are required
to overcome these problems, one of which is inserting a metal oxide catalyst.
In this work, we reported the current progress of using nano-silica (SiO2)
as a catalyst to improve the thermodynamics and kinetics of magnesium hydride
(MgH2). Nano-SiO2 was extracted from local rice husk ash
(RHA) using the co-precipitation method. Then, the MgH2 was
catalyzed with a small amount of nano-SiO2 (1 wt%, 3 wt%, and 5 wt%)
and prepared using a high-energy milling technique. The microstructure and
hydrogen desorption performance were studied using x-ray diffraction (XRD),
scanning electron microscopy (SEM), and differential scanning calorimetry
(DSC). The results of the XRD test showed that the milling process over 5 h
reduced the material to a nanometer scale. Then, SEM images showed that the
powders were agglomerated after 5 h of milling. Furthermore, it was also found
that nano-SiO2 reduced the hydrogen desorption temperature of MgH2
to 338°C in 14.75 min when the 5 wt% variation of the catalyst was applied.
Keywords: Catalyst; Hydrogen storage; Magnesium hydride; Milling; Rice husk ash; Silica

Full PDF Download


Barreto, G.P., Morales, G., López Quintanilla, M.L., 2013. Microwave Assisted Synthesis of ZnO Nanoparticles: Effect of Precursor Reagents, Temperature, Irradiation Time, and Additives on Nano-ZnO Morphology Development. Journal of Materials, Volume 2013, pp. 1–11

Ichikawa, T., Hanada, N., Isobe, S., Leng, H., Fujii, H., 2005. Composite Materials based on Light Elements for Hydrogen Storage. Materials Transactions, Volume 46(1), pp. 1–14

Liang, G., 2004. Synthesis and Hydrogen Storage Properties of Mg-based Alloys. Journal of Alloys and Compounds, Volume 370(1-2), pp. 123–128

Mustanir, Nur, S., Jalil, Z., Fauzi, 2011. Pengaruh Sisipan Katalis SiO2 dalam MgH2 yang Disintesis melalui Rute Mechanical Alloying. Jurnal Sains MIPA, Volume 17(2), pp. 43–47

Norton, M.G., Mcleroy, D.N., Corti, G., Miller, M.A., 2009. Silica Nanosprings: A Novel Nanostructured Material for Hydrogen Storage. In: Proceedings of the Clean Technology Conference, Houston

Oelerich, W., Klassen, T., Bormann, R., 2001a. Metal Oxides as Catalysts for Improved Hydrogen Sorption in Nanocrystalline Mg-based Materials. Journal of Alloys and Compounds, Volume 315(1-2), pp. 237–242

Oelerich, W., Klassen, T., Bormann, R., 2001b. Mg-based Hydrogen Storage Materials with Improved Hydrogen Sorption. Materials Transactions, Volume 42(8), pp. 1588–1592

Schlapbach, L., Zuttel, A., 2001. Hydrogen Storage Materials for Mobile Applications. Nature, Volume 414, pp. 353–358

Suryanarayana, C., 2001. Mechanical alloying and milling. Progress in Materials Science, Volume 46(1-2), pp. 1–184

Varin, R.A., Czujko, T., Wasmund, E.B., Wronski, Z.s., 2007. Hydrogen Desorption Properties of MgH2 Nanocomposites with Nano-oxides and Inco Micrometric- and Nanometric-Ni. Journal of Alloys and Compounds, Volume 446-447, pp. 63–66

Zaluska, A., Zaluski, L., Ström-Olsen, J.O., 1999. Nanocrystalline Magnesium for Hydrogen Storage. Journal of Alloys and Compounds, Volume 288(1-2), pp. 217–225

Zuttel, A., Borgschulte, A., Schlapbach, L., 2008. Hydrogen a Future Energy Carrier, Wiley VCH Verlag, Weinheim