Molecular Engineering toward High‐Crystallinity Yet High‐Surface‐Area Porous Carbon Nanosheets for Enhanced Electrocatalytic Oxygen Reduction

Carbon-based nanomaterials have been regarded as promising non-noble metal catalysts for renewable energy conversion system (e.g., fuel cells and metal-air batteries). In general, graphitic skeleton and porous structure are both critical for the performances of carbon-based catalysts. However, the pursuit of high surface area while maintaining high graphitization degree remains an arduous challenge because of the trade-off relationship between...