@article{(Open Science Index):https://publications.waset.org/pdf/12754, title = {Effects of TiO2 and Nb2O5 on Hydrogen Desorption of Mg(BH4)2}, author = {Wipada Ploysuksai and Pramoch Rangsunvigit and Santi Kulprathipanja}, country = {}, institution = {}, abstract = {In this work, effects of catalysts (TiO2, and Nb2O5) were investigated on the hydrogen desorption of Mg(BH4)2. LiBH4 and MgCl2 with 2:1 molar ratio were mixed by using ball milling to prepare Mg(BH4)2. The desorption behaviors were measured by thermo-volumetric apparatus. The hydrogen desorption capacity of the mixed sample milled for 2 h was 4.78 wt% with a 2-step released. The first step occurred at 214 °C and the second step appeared at 374 °C. The addition of 16 wt% Nb2O5 decreased the desorption temperature in the second step about 66 °C and increased the hydrogen desorption capacity to 4.86 wt% hydrogen. The addition of TiO2 also improved the desorption temperature in the second step and the hydrogen desorption capacity. It decreased the desorption temperature about 71°C and showed a high amount of hydrogen, 5.27 wt%, released from the mixed sample. The hydrogen absorption after desorption of Mg(BH4)2 was also studied under 9.5 MPa and 350 °C for 12 h. }, journal = {International Journal of Materials and Metallurgical Engineering}, volume = {6}, number = {4}, year = {2012}, pages = {311 - 315}, ee = {https://publications.waset.org/pdf/12754}, url = {https://publications.waset.org/vol/64}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 64, 2012}, }