Sentences with phrase «prolonged exposure to the oxygen»
However, they lose that ability and begin to degrade with prolonged exposure to the oxygen radicals.
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The Pt3Ni nanoframe catalysts achieved a more than 36-fold and 22-fold enhancement in two different measures of catalytic activity (mass and specific activities, respectively) for the oxygen reduction reaction in comparison to state - of - the - art carbon - supported Pt catalysts (Pt / C) during prolonged exposure to reaction conditions.
However, prolonged exposure to excess oxygen can increase pulmonary damage, leading to lifelong problems.
They either eventually break down or disperse in to smaller fragments with prolonged exposure to light, oxygen, heat or mechanical stress.