Effects of the preparative parameters of hydriding combustion synthesis on the properties of Mg-Ni-C as hydrogen storage material

TY - JOUR

T1 - Effects of the preparative parameters of hydriding combustion synthesis on the properties of Mg-Ni-C as hydrogen storage material

AU - Chourashiya, Muralidhar

AU - Yang, Dong Cheol

AU - Park, Choong Nyeon

AU - Park, Chan Jin

N1 - Funding Information: This study was supported financially by the Ministry of Education, Science Technology (MEST) and National Research Foundation of Korea (NRF) through the Basic Research Laboratories (BRL) Program (2011-0001567) and the Human Resource Training Project for Regional Innovation.

PY - 2012/3

Y1 - 2012/3

N2 - Magnesium may be the most promising solid-state hydrogen storage material owing to its high storage capacity (7.6 wt%) and highest volumetric density (2 times of liquid H2). On the other hand, suffers from its sluggish absorption/desorption characteristics. In the present study, the simple/cost-effective hydriding combustion synthesis (HCS) was used to prepare highly-active Mg-based-samples. The preparative parameters of HCS were varied, and its effects on the micro-structural and hydrogen storage properties were determined. The results and its analysis showed that the simple HCS process possesses a multifaceted dependence on a range of experimental factors and affect the final product. The estimated dependence enabled us to explain the combined effect of individual experimental factors on the prepared samples. The Mg-Ni-C sample prepared at 610°C with 6%wt-nano-Ni and 4 wt%-multi-walled-CNTs as reactants, resulted in sample with a surface area as high as 19.01 m2/g and a desorption capacity of 5.77 wt%, highlighting the promising characteristics of HCS to prepare highly-active Mg-based-materials.

AB - Magnesium may be the most promising solid-state hydrogen storage material owing to its high storage capacity (7.6 wt%) and highest volumetric density (2 times of liquid H2). On the other hand, suffers from its sluggish absorption/desorption characteristics. In the present study, the simple/cost-effective hydriding combustion synthesis (HCS) was used to prepare highly-active Mg-based-samples. The preparative parameters of HCS were varied, and its effects on the micro-structural and hydrogen storage properties were determined. The results and its analysis showed that the simple HCS process possesses a multifaceted dependence on a range of experimental factors and affect the final product. The estimated dependence enabled us to explain the combined effect of individual experimental factors on the prepared samples. The Mg-Ni-C sample prepared at 610°C with 6%wt-nano-Ni and 4 wt%-multi-walled-CNTs as reactants, resulted in sample with a surface area as high as 19.01 m2/g and a desorption capacity of 5.77 wt%, highlighting the promising characteristics of HCS to prepare highly-active Mg-based-materials.

KW - Hydriding combustion

KW - Hydrogen storage

KW - Mg-based materials

KW - β-MgH

UR - http://www.scopus.com/inward/record.url?scp=84856764617&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2011.11.137

DO - 10.1016/j.ijhydene.2011.11.137

M3 - 文章

AN - SCOPUS:84856764617

SN - 0360-3199

VL - 37

SP - 4238

EP - 4245

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 5

ER -