Sustainable NaAlH4 production from recycled automotive Al alloy. Issue 10 (11th May 2022)

• Record Type: Journal Article
• Authors: Shang, Yuanyuan; Pistidda, Claudio; Milanese, Chiara; Girella, Alessandro; Schökel, Alexander; Le, Thi Thu; Hagenah, Annbritt; Metz, Oliver; Klassen, Thomas; Dornheim, Martin
• Is Part Of: Green chemistry. Volume 24:Issue 10(2022)
• Page Start: 4153
• Page End: 4163
• Publication Date: 2022-05-11
• Subjects: Environmental chemistry -- Industrial applications -- Periodicals; Environmental management -- Periodicals; 660
• DOI: 10.1039/d1gc04709d
• Languages: English
• ISSNs: 1463-9262

Abstract

Abstract : To reduce the carbon footprint associated with the production of hydrogen storage materials and to reduce their cost, we pursue the possibility of obtaining high-quality hydride-based materials from industrial metals waste. Abstract : To reduce the carbon footprint associated with the production of hydrogen storage materials and to reduce their cost, we pursue the possibility of obtaining high-quality hydride-based materials from industrial metals waste. In particular, in this manuscript, we propose a method for obtaining high-quality NaAlH4, starting from the Al-based automotive recycled alloy DIN-GDAlSi10Mg(Cu). The hydrogen storage properties of the material obtained by ball milling NaH and DIN-GDAlSi10Mg(Cu) under a hydrogen atmosphere were comprehensively explored via a broad range of experimental techniques, e.g. volumetric analysis, ex situ X-ray diffraction (XRD), in situ synchrotron radiation powder X-ray diffraction (SR-PXD), scanning electron microscopy (SEM), and differential thermal analysis (DTA). These investigations show that NaAlH4 was successfully synthesized and that its properties are comparable with those of high-purity commercial NaAlH4 .