Iron porphyrin-derived ordered carbonaceous frameworks

Iron-incorporated ordered carbonaceous frameworks (OCFs) have been synthesized by the pyrolysis of iron porphyrin with ethynyl groups as polymerizable/carbonizable moieties at a temperature higher than 600 °C. The behavior is analyzed thermogravimetry-differential thermal analysis-mass spectrometry, and obtained carbon materials are characterized X-ray diffraction, absorption fine structure, high-angle annular dark-field scanning transmission electron microscopy. introduction meta positions peripheral phenyl essential for efficient cross-linking upon polymerization. thermally stable polymer thus can be transformed into OCFs high carbonization yield 93 % subsequent carbonization. possess periodic structural regularity Fe-N4 coordination exhibit electrocatalysis conversion CO2 CO.