成果報告書詳細
管理番号20140000000166
タイトル*平成25年度中間年報 水素利用技術研究開発事業 燃料電池自動車及び水素ステーション用低コスト機器・システム等に関する研究開発 燃料電池自動車用水素貯蔵材料に関する研究開発
公開日2015/4/29
報告書年度2013 - 2013
委託先名株式会社アツミテック
プロジェクト番号P13002
部署名新エネルギー部
和文要約
英文要約Title:Hydrogen Utilization Technology Development [R&D for the technologies on H2 storage and H2 transport considering H2 produced by renewable energy source, etc. ](FY2013-FY2015) FY2013 Annual Report

ATSUMITEC CO., LTD. achieved reduction of the pressure of hydrogen storage below atmospheric pressure and lowering the hydrogen storage temperature to 4~5wt% room temperature by refining the Mg-Ni alloy to nanoparticle size.However, the balance of hydrogen emission must be improved because currently the equilibrium pressure shifts to significantly toward hydrogen absorption.We promote research to obtain a guideline for the development of materials suitable for the hydrogen storage tank by improving the hydrogen desorption characteristics while maintaining the hydrogen storage characteristics at room temperature and the hydrogen storage capacity of 5wt% which we have already achieved. We have started an investigation into the principles of production methods for the mass production of nanoparticles, focusing on verifying their peculiar hydrogen storage characteristics and elucidating their mechanisms. Moreover, we have started an investigation of the total system to realize the hydrogen storage tank.Upon confirmation of the hydrogen storage characteristics of Mg-Ni based alloy nanoparticles, we used the custom-made apparatus that produces and measures nanoparticles to evaluate the characteristics of hydrogen storage.We confirmed hydrogen emission at 150℃~200℃ and did not confirm hydrogen emission in a reduced pressure environment at room temperature.We have carried out, in collaboration with Kyushu University, a fine structural analysis through transmission electron microscopy (TEM) to analyze the mechanism of peculiar hydrogen storage property.As a result, we confirmed that the crystal structure changes with difference in composition ratio between Mg and Ni changes.More specifically, when the composition ratio is Mg2Ni it becomes amorphous, when it is Mg6Ni, Mg2Ni crystallizes and Mg becomes amorphous. And when it is Mg10Ni, Mg crystallizes.We investigated production method principles to shift the limited production of Mg-Ni based alloys in the laboratory to mass production.Specifically, we achieved material evaporation at the gram level by improving collection efficiency and confirming the necessary elements for mass evaporation. In this study of the hydrogen storage tank system, we started investigating the hydrogen storage tank and hydrogen emission by heating and developing to improve the characteristics of materials. This is due to the fact that the characteristics of hydrogen emission that we described above meant that the alloy needs to be heated to 150℃~200℃ for hydrogen emission at the current phase of this study.Specifically, we started investigating the amount of hydrogen necessary to heat the material to 200℃ and the temperature distribution simulation.
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