Australian Nuclear Science and Technology Organisation, 800 Blackburn Road, Clayton, VIC 3168, Australia.
Monash University Affiliate, Monash University, Wellington Rd, Clayton, VIC 3800, Australia.
Molecules. 2023 Mar 28;28(7):3024. doi: 10.3390/molecules28073024.
Hydrogen storage for energy applications is of significant interest to researchers seeking to enable a transition to lower-pollution energy systems. Two of the key drawbacks of using hydrogen for energy storage are the low gas-phase storage density and the high energy cost of the gas-phase compression. Metal hydride materials have the potential to increase hydrogen storage density and decrease the energy cost of compression by storing the hydrogen as a solid solution. In this article, the technical viability of core-shell VAl-PdAg as a hydrogen storage material is discussed. LaNi, LaNi/acrylonitrile-butadiene-styrene copolymer mixtures, core-shell V-Pd, and core-shell VAl-PdAg are directly compared in terms of reversible hydrogen-storage content by weight and volume. The kinetic information for each of the materials is also compared; however, this work highlights missing information that would enable computational dynamics modelling. Results of this technical evaluation show that VAl-PdAg has the potential to increase gravimetric and volumetric hydrogen capacity by 1.4 times compared to LaNi/acrylonitrile-butadiene-styrene copolymer mixtures. In addition, the literature shows that PdAg and VAl both have similarly good hydrogen permeabilities, thermal conductivities, and specific heats. In summary, this evaluation demonstrates that core-shell VAl-PdAg could be an excellent, less-expensive hydrogen storage material with the advantages of improved storage capacity, handleability, and safety compared to current AB-polymer mixtures.
对于寻求实现低污染能源系统转型的研究人员来说，将氢气用于能源存储具有重要意义。使用氢气进行能量存储的两个主要缺点是气相存储密度低和气相压缩的能量成本高。金属氢化物材料具有通过将氢气存储为固溶体来提高储氢密度和降低压缩能量成本的潜力。本文讨论了核壳 VAl-PdAg 作为储氢材料的技术可行性。LaNi、LaNi/丙烯腈-丁二烯-苯乙烯共聚物混合物、核壳 V-Pd 和核壳 VAl-PdAg 在重量和体积方面直接比较了可逆储氢含量。还比较了每种材料的动力学信息；然而，这项工作突出了缺失的信息，这些信息将使计算动力学模型成为可能。这项技术评估的结果表明，与 LaNi/丙烯腈-丁二烯-苯乙烯共聚物混合物相比，VAl-PdAg 有可能将重量和体积储氢能力提高 1.4 倍。此外，文献表明 PdAg 和 VAl 都具有相似的良好氢气渗透率、热导率和比热容。总之，这项评估表明，与目前的 AB 聚合物混合物相比，核壳 VAl-PdAg 可能是一种极好的、更经济的储氢材料，具有提高的存储容量、可操作性和安全性优势。
