首页|Research progress and development tendency on storage mechanism of multi-principal element alloys for hydrogen/tritium storage
Research progress and development tendency on storage mechanism of multi-principal element alloys for hydrogen/tritium storage
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Sustainable clean energy is gradually replacing traditional fossil energy sources in important industrial applications and is placing higher demands on the tech-nologies of energy storage and transportation.The devel-opment of multi-principal element alloys(MPEAs)offers a new idea for safe solid-state hydrogen storage materials.Owing to the unique characteristics of complex compo-nents and severe lattice distortion,MPEAs are predicted to have better hydrogen storage performance and more probability for modulation and enhancement,allowing them to meet the requirements of different hydrogen stor-age applications.The unique structure characteristic potentially devotes the improvement of thermodynamic and kinetic performance,such as the hydrogen storage capacity and hydrogen adsorption/desorption properties.Recently,several important modulation factors originating from components and structures facilitate the understand-ing of the correlation between hydrogen storage properties and microstructure.Here,we highlight the correlations of hydrogen storage mechanism,with the degree of lattice distortion,the element variation or segregation and valence electron concentration.Moreover,the development ten-dency on the hydrogen storage mechanism based on the advanced microscopy and computational approach is pro-posed.Especially,the chemically short-range ordered structure in MPEAs is predicted as a potential modification factor of the hydrogen/tritium storage properties.
Multi-principal element alloys(MPEAs)Hydrogen/Tritium storageHydrogenation mechanismDevelopment tendencyAdvanced microscopy
Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics,Mianyang 621900,China
Key Laboratory of Nuclear Physics and Ion-Beam Application(MOE),Institute of Modern Physics,Department of Nuclear Science and Technology,Fudan University,Shanghai 200433,China
School of Physics,University of Electronic Science and Technology of China,Chengdu 610054,China