Schaak-hydrogen-bubbles-6-2013

Schaak-hydrogen-bubbles-6-2013

Bubbles floating off a pad of densely packed purple spheres

Hydrogen gas bubbling off of the surface of a nickel phosphide crystal. A team led by Raymond Schaak of Penn State is studying nanoparticles made from nickel phosphide as a means to create cleaner energy technologies.

Image: Eric Popczun