Effects of Metal Loading and Milling Time on Hydrogen Storage on Modified Graphite

Visara Jannatisin; Yindee Suttisawat; Pramoch Rangsunvigit; Boonyarach Kitiyanan; Santi Kulprathipanja

doi:10.4028/www.scientific.net/AMR.702.105

Paper Titles

Design of Al₂O₃/CoAlO/CoAl Porous Ceramometal for Multiple Applications as Catalytic Supports
p.79

The Effect of Deformation and Irradiation with High-Energy Krypton Ions on the Structure and Phase Composition of Reactor Steels
p.88

The Structure-Phase Compositions and Properties of Plasma-Detonation Ni and Co-Based Powder Alloys Coatings
p.94

TiO₂ and Metal-Doped TiO₂ Performance for the 4-Chlorophenol Degradation in Batch and Continuous Reactors
p.100

Effects of Metal Loading and Milling Time on Hydrogen Storage on Modified Graphite
p.105

Novel Microwave Reduction Sintering for Perovskite Anode
p.111

Investigation of Curing Kinetics of Azo-Containing Twin Liquid Crystalline Epoxy Resins with Anhydride
p.115

Study on Curing Mechanism of Azo-Containing Twin Liquid Crystalline Epoxy Resins with Anhydride
p.119

Effect of In₂S₃ Buffer Layer in TiO₂/In₂S₃/CuInS₂ Structure
p.123

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 702Effects of Metal Loading and Milling Time on...

Effects of Metal Loading and Milling Time on Hydrogen Storage on Modified Graphite

Abstract:

This paper examines the effect of metal loading (Zr-, V-, Ti-, and K-compounds) on the hydrogen storage property of mechanically milled graphite. The hydrogen adsorption took place at room temperature and 11 MPa measured by thermal volumetric analysis. The results showed that the graphite loaded with ZrCl₄ provided a maximum hydrogen storage capacity of 0.6 wt%. Moreover, a milling time of 2 h seems to be the best, offering the highest hydrogen adsorption capacity due to the high specific surface area and the appropriate pore diameter created after the milling. In addition, it was found that the transition metals (ZrCl₄ and VCl₃) could stabilize the graphite structure and enlarge the gap between the grapheme layers to be suitable trapping sites for hydrogen adsorption. On the other hand, the K₂CO₃ and TiO₂ loaded graphite did not show any improvement for hydrogen adsorption.