Macro-scale Turing-shape membranes for energy storage

Summary Turing patterns and reaction-diffusion models are of great significance in biological and chemical fields. However, Turing-shape materials together with their application are rarely investigated, since at present Turing patterns are typically formed by the reaction of small molecules in a viscous system. Herein, a facile route to fabricate membrane materials with macro-scale Turing patterns is proposed. Macromolecules, rather than small molecules, are chosen as reactants to generate chemical Turing patterns, which makes it easy to freeze and construct Turing-shape materials. The formation mechanism and influence factors of Turing patterns are discussed in detail via experimental investigation and numerical simulation. Turing-shape membranes are successfully applied to electrochemical energy storage and exhibit good performance benefiting from the rich surface area.