Sentences with phrase «grain boundaries create»

Although grain - boundary density has previously been correlated with catalytic activity for some reactions, direct evidence that grain boundaries create surfaces with enhanced activity is lacking.

Grain boundaries create strained regions in polycrystalline materials by stabilizing dislocations and may provide a way to create high - energy surfaces for catalysis that are kinetically trapped.

Not exact matches

Bulk defects in a metal, such as grain boundaries, can create regions of increased strain at its surface that could affect its catalytic activity.

By annealing the films to create larger grains, they could change the types and distribution of grain boundaries at the surface.

Salehi - Khojin said it should be possible to «tune» the electronic properties of graphene grain - boundary arrays using controlled doping to obtain a fingerprint response — thus creating a reliable and stable «electronic nose.»

They created a micron - sized, individual graphene grain boundary in order to probe its electronic properties and study its role in gas sensing.

Those defects, the research showed, create more heat than would be expected from the grain boundaries.