Design of Metal-Nitrogen Doped Carbon Based Single Atom Catalysts for Efficient CO<sub>2</sub> Electrochemical Reduction
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The electrochemical CO2 reduction reaction (CO2RR) is a potential strategy for converting waste CO2 into a valuable chemical and closing the CO2 cycle. Using metal phthalocyanine precursors, we synthesized a range of nitrogen coordinated single atom catalysis (M-N-C) on carbon supports to optimize local electronic structure for efficient CO2 electrochemical reduction. The supports for these catalysts were also modulated by using a block copolymer template as well as a micropore-contained graphitic sheet. In addition, we extended our study of catalysts with dual atom centers beyond a single M-N-C. This research presents new insights into the structure-performance relationship on CO2RR electrocatalysts at the atomic scale and extends the application of atomically dispersed electrocatalysts for heterogeneous electrocatalysis and beyond.