Effect of hydrogen on magnetic properties in MgO studied by first-principles calculations and experiments.

We investigated the effects of both intrinsic defects and hydrogen atom impurities on the magnetic properties of MgO samples. MgO in its pure defect-free state is known to be a nonmagnetic semiconductor. We employed density-functional theory and the Heyd-Scuseria-Ernzerhof (HSE) density functional.

Photoenhanced Water Electrolysis in Separate O and H Cells Using Pseudocapacitive Electrodes.

Water electrolysis has received much attention in recent years as a means of sustainable H production. However, many challenges remain in obtaining high-purity H and making large-scale production cost-effective. This study provides a strategy for integrating a two-cell water electrolysis system with solar energy storage.