Fabrication of conjugated porous polymer catalysts for oxygen reduction reactions: A bottom-up approach
The present study demonstrates the fabrication of a conjugated porous polymer (CPP-P2) through a Pd-catalyzed Suzuki-Miyaura poly-condensation reaction. 13Ccross-polarization solid-state NMR and Fourier transform infrared (FTIR) spectroscopy were used to characterize CPP-P2. Pristine nitrogen-containing CPP was explored as a catalyst for the oxygen reduction reaction in 0.1 M KOH aqueous alkaline media. In the case of CPP-P2, the polymer oxygen reduction reaction occurs via a four-electron transfer mechanism. An understanding of the oxygen reduction at the molecular level and the role of molecular packing in the three-dimensional structure was proposed based on density functional theory (DFT) modeling. © 2020 by the authors. Licensee MDPI, Basel, Switzerland. ; This work was funded by National Research Foundation (NRF) of Korea (Grants NRF-2020R1A4A1018163) under the program of Basic Research Laboratory (BRL). This research was partially funded by the Ministry of Science and Higher Education of the Russian Federation (through the basic part of the government mandate, Project No. FEUZ-2020-0060).