Hydrogen storage behavior of TiFe alloy activated by different methods
Fangqin Guo, Katsuya Namba, Hiroki Miyaoka, Ankur Jain, Takayuki Ichikawa
Abstract
TiFe activation for hydrogen uptake was conducted through different methods and ball milling with ethanol proved to be the most effective one. TiFe alloy after activation could absorb 1.2 wt% hydrogen at room temperature with absorption and desorption plateaus of 0.5 MPa and 0.2 MPa respectively. Investigation on microstructure and chemical state of TiFe sample after milled with ethanol suggested that the well spread metallic Ti and Fe elements helped hydrogen uptake and release. The activation of TiFe alloy by milling with ethanol was achieved at ambient conditions with ease successfully and possibly can be used for large scale production
Topics & Concepts
AlloyMaterials scienceHydrogen storageMicrostructureDesorptionBall millHydrogenEthanolChemical engineeringMetallurgyMetalCatalysisAdsorptionChemistryOrganic chemistryEngineeringHydrogen Storage and MaterialsAmmonia Synthesis and Nitrogen ReductionFusion materials and technologies