Related Experiment Video
Updated: Aug 6, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
Published on: May 15, 2015
Hydrogen release from Mg(NH2)2-MgH2 through mechanochemical reaction
Jianjiang Hu1, Guotao Wu, Yongfeng Liu
1Department of Physics, National University of Singapore, Singapore 117542.
Abstract:
A total of 7.4 wt % of hydrogen was released from the mixture of magnesium amide and magnesium hydride at a molar ratio of 1:2 by mechanical ball milling. Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD) characterizations along with the amount of hydrogen released at different stages of ball milling reveal that magnesium imide was first formed in the reaction. The imide then reacted continuously with magnesium hydride and was converted to magnesium nitride and hydrogen. Thermodynamic calculation shows that the hydrogen desorption is a mild endothermic reaction with the standard enthalpy change of about 3.5 kJ/mol of H2.
More Related Videos
06:32A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
Published on: August 17, 2016
08:40Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
Published on: December 6, 2021
Related Concept Videos
Free Energy Changes for Nonstandard States
Covalent Bonding and Lewis Structures
Hydrogen Bonds
Hydrogen Bonds
Hess's Law
Chemical Stoichiometry and Gases: Using Ideal Gas Law to Determine Moles