Ultrasound-assisted synthesis of nano-structured zirconium hydride at room temperature

• Published in: International journal of hydrogen energy Vol. 40; no. 40; pp. 13942 - 13948
• Main Authors: Gharatloo, Iraj Moradi, Golikand, Ahmad Nozad, Fathi, Mohammad Bagher, Hasanzadeh, Iraj
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 26.10.2015
• Subjects: Hydrogen storage; Nanostructured metal hydrides; Size effects; Sonochemical method; Zirconium hydride; Sonochemical method; Size effects; Hydrogen storage; Nanostructured metal hydrides; Zirconium hydride
• ISSN: 0360-3199; 1879-3487
• DOI: 10.1016/j.ijhydene.2015.08.080

In this study, sonochemical method was used to synthesize nano-structured zirconium hydride (nano-ZrH2) from the zirconium chloride aqueous solution. Formation of nano-ZrH2 with average size about 6.5 nm was confirmed by X-ray diffraction (XRD), elastic recoil detection (ERD) analyses, and transmission electron microscopy (TEM). Differential scanning calorimetry (DSC) analysis revealed that hydrogen desorption was occurred at 303 °C, which is very less than that of the ZrH2 synthesized by conventional methods (about 600 °C). The results show that the sonochemical method is very appropriate for synthesis of nano-structured metal hydrides (NMHs) with unique properties which can be very helpful for the study of size reduction effects on the various properties of metal hydrides. •Sonochemical method was used to synthesize nano-ZrH2, for the first time.•H/M ratio of the synthesized nano-ZrH2 is obtained about 2 (analyzed by ERD).•The temperature of hydrogen desorption of nano-ZrH2 is 303 °C (very less than that of conventional methods, 600 °C).•Sonochemical method was found appropriate and reliable method for synthesis for nano-ZrH2.