For example, the oxygen re-duction

For example, the oxygen re-duction reaction (ORR) is kinetically limited at the cathode, and the scale of the Pt crystallites leads to high costs for Pt-based electrocatalysts with sufficient surface area and activity . In order to overcome these barriers, it is necessary to maximize the activity of a Pt-based catalyst by engineering its morphology and/or composition.

結果 (中文) 1:

例如，氧气重新生产反应 （ORR） 是在阴极上，动力学有限和铂微晶的规模导致足够的表面面积和活性铂催化剂的高成本。为了克服这些障碍，是有必要通过工程其形态和/或组成最大化铂催化剂的活性。

結果 (中文) 3:

例如，氧还原反应（ORR）在阴极动力学限制，和的Pt微晶规模导致有足够的表面积和活性铂基催化剂成本高。为了克服这些障碍，要最大化的Pt工程其形态和/或基于合成的催化剂的活性。