Preparation of high active Al-Ga-In-Sn alloy by alloying & ball milling method and its hydrogen production via water splitting

The Al-water reaction has attracted the attention for it's a convenient method for producing hydrogen for fuel cell. In this study, High active Al alloy was prepared using a melting-mechanical crushing-mechanical ball milling method. The microstructure and phase compositions of Al alloy and reaction products were investigated via X-ray diffraction and scanning electron microscopy with energy dispersed X-ray. The different low-melting-point phases at the Al grain boundaries are related to the activation of the Al alloy. This work The H₂ generation performance of the alloy prepared by this method can be significantly improved. The highest H₂ generation rate and H₂ conversion efficiency can reach 613mL∙min^-1 and 76.27% at room temperature.