Microstructure and hydrogen storage properties of the MgYNiCo (x = 0, 0.2, 0.3, and 0.4) alloys.

Rare earth elements have excellent catalytic effects on improving hydrogen storage properties of the MgNi-based alloys. This study used a small amount of Y to substitute Mg partially in MgNiCo and characterized and discussed the effects of Y on the solidification and de-/hydrogenation behaviors. The MgYNiCo (x = 0, 0.

Electronic Structure Effect of PtCo Alloy with Adjustable Compositions for Efficient Methanol Electrooxidation.

Various efficient strategies have been developed to overcome the anodic electrocatalyst issue of methanol-based fuel cells owing to their complicated methanol electrooxidation mechanism. In this work, PtCo nanoparticles with adjustable compositions supported on multiwalled carbon nanotubes (PtCo/MWCNTs) through the adsorbing-coating-annealing-etching route were synthesized. Compared with the Pt/C catalyst, PtCo/MWCNTs exhibit better electrocatalytic MOR activity in both activity and durability.