School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China.
Key Laboratory of Hebei Province on Scale-span Intelligent Equipment Technology, Tianjin Key Laboratory of Power Transmission and Safety Technology for New Energy Vehicles, and School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China.
Langmuir. 2023 May 9;39(18):6366-6374. doi: 10.1021/acs.langmuir.3c00048. Epub 2023 Apr 27.
Hydrogen gas (H) as a fuel has the advantages of high energy density (122 kJ g) and zero carbon emissions. To meet the growing demand for H in the future, green, efficient, and convenient production technologies must be developed. The Al-HO reaction, which produces H by reacting aluminum (Al) with water (HO), is considered a rapid method for producing H. However, Al-HO creates a protective oxide layer on the surface of Al, preventing the production of H. In this study, we developed a simple method for forming Al-GaInSn alloy by brushing GaInSn-AlO grease onto an Al plate to form an Al/GaInSn-AlO/Al sandwich structure. AlO in the sample supports GaInSn, prevents the leakage of GaInSn, and promotes its penetration into the Al lattice to form Al-GaInSn alloy. By forming a liquid phase within the alloy, GaInSn increases the accessibility of Al to the reaction. As a result, the Al-GaInSn alloy can rapidly react with pure HO to produce H at room temperature conditions, with yields as high as ∼93.2%. It was interesting to find that dye-polluted water (methyl orange) could be synchronically purified by the Al-HO reaction at the same time.
氢气 (H) 作为燃料具有能量密度高（122 kJ g）和零碳排放的优点。为了满足未来对 H 的日益增长的需求，必须开发绿色、高效、便捷的生产技术。铝 (Al) 与水 (HO) 反应生成 H 的 Al-HO 反应被认为是生产 H 的快速方法。然而，Al-HO 会在 Al 的表面形成一层保护性氧化物层，从而阻止 H 的生成。在本研究中，我们开发了一种简单的方法，通过将 GaInSn-AlO 油脂刷涂在 Al 板上来形成 Al-GaInSn 合金，从而形成 Al-GaInSn 合金。样品中的 AlO 支撑 GaInSn，防止 GaInSn 泄漏，并促进其渗透到 Al 晶格中形成 Al-GaInSn 合金。通过在合金内形成液相，GaInSn 增加了 Al 参与反应的可及性。因此，Al-GaInSn 合金可以在室温条件下与纯 HO 快速反应，产率高达约 93.2%。有趣的是，我们发现同时可以通过 Al-HO 反应同步净化染料污染的水（甲基橙）。
