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Transition metal‐nitrogen‐carbon (M‐N‐C) catalysts with CoN4 centers have attracted great attention as a potential alternative to precious metal catalysts for bifunctional oxygen electrocatalysis. However, the asymmetric charge environment of the active site of MN4 obtained by conventional pyrolysis strategy makes the unbalanced adsorption of oxygen molecules, which restricts the activities of both...
Liquid‐crystalline polymers have been applied to a wide variety of stimuli‐responsive materials; however, the inevitable mesogenic alignment or extra complicated preparation hinders their further application and large‐scale fabrication. Here, fabrication of free‐standing blue phase liquid‐crystalline (BPLC) film is reported by using one well‐designed system composed of specially designed hydrogen‐bonded...
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