Amino-Group Hybrid Magadiite Support: Preparation, Characterization, And Application For Hydrogen Generation

A simple method of preparing durable magadiite-supported catalyst for hydrogen generation was developed in this article. This magadiite-supported catalyst was the structure of ruthenium nanoparticles immobilized on the surface of amino-group hybrid magadiite. The amino-group hybrid magadiite support (NH2-magadiite) was successfully prepared by oxidation and chemical coupling reaction, and then was used as the template to trap Ru nanoparticles (Ru/NH2-magadite). Many techniques were used to characterize the structure of amino-group hybrid magadiite and the morphology of the supported Ru nanoclusters, including UV-Vis, FT-IR, XRD, SEM, TEM and EDX. The hydrolysis of alkaline sodium borohydride (NaBH4) solution was used as probe to evaluate the catalytic activity of the supported Ru catalysts by NH2-magadiite and Na-magadiite supports, respectively. The results show that amino group was successfully grafted on the external surface of magadiite, and Ru nanoparticles could be trapped evenly onto the external of magadiite by the NH2-magadiite support template. Ru/NH2-magadite catalyst shows higher catalytic activity than that of Na-magadiite supported Ru catalyst (Ru/Na-magadiite). Highly dispersed Ru nanoparticles on the external surface of NH2-magadiite support played an important role in improving catalytic activity of NaBH4 hydrolysis.