Abstract
Magnesium hydride (MgH2) nanocrystals of different sizes were constructed by a facile hydrogenated ball milling method. X-ray diffraction (XRD) analysis showes that the size of MgH2 nanocrystals decreased gradually with the increasing milling time. The as-prepared MgH2 nanocrystals started to release and take up hydrogen from 281 to 119 °C, respectively. By doping the prepared Nb2O5@MOF into MgH2 nanocrystals, the initial hydrogen desorption and absorption temperatures were further reduced to 228 and 25 °C. Microstructure analysis revealed that the uniform distribution of Nb2O5 on MgH2 nanocrystals contributed to the greatly enhanced de/hydrogenation kinetics of modified MgH2 system.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
