Non-peripheral octamethyl-substituted cobalt phthalocyanine nanorods supported on N-doped reduced graphene oxide achieve efficient electrocatalytic CO2 reduction to CO

An Update on Graphene Oxide: Applications and Toxicity

“…Accelerating desorption in the presence of electric fields would allow for an additional adsorbent surface on the membrane, enabling the passage of H 2 O molecules. 241 Orekhav et al reported a computational and experimental evaluation for the reduction of GO using nanosecond infrared laser irradiation ( Figures 37,38,and 39). Researchers reported that rapid aerobic heating to 3800 K results in a unique regime of high-quality GO reduction.…”

Controllable dispersion of cobalt phthalocyanine molecules on graphene oxide for enhanced electrocatalytic reduction of CO2 to CO

“…This can be attributed to the template role of GO at the nucleation stage of excessive CoPc molecules. 29 Meanwhile, no obvious signs of GO can be found, indicating the recombination between CoPc and GO. When the CoPc concentration was reduced to 10 mM, the large 1D CoPc aggregates disappeared and the wrinkles of GO appeared in the 10CoPc/GO composite, as can be seen in Fig.…”

“…2c, the characteristic vibrational peaks of CoPc molecule include 730.9 cm −1 , 756 cm −1 and 779 cm −1 for non-planar deformation vibrations of C–H bonds, 1092 cm −1 for pyridine N–C, 1119 cm −1 for pyrrole N–C, and 1522 cm −1 for the C–C benzene ring skeletal stretching vibrations, respectively. 29,33 The existence of the characteristic vibrational peak of CoPc and the CO vibrational peak at 1728 cm −1 in the 1CoPc/GO sample indicates that CoPc and GO were successfully combined. In particular, the vibrational peaks of CoPc at 721 cm −1 , 754 cm −1 and 771 cm −1 blue-shift respectively by 10, 2 and 8 cm −1 , confirming the existence of π–π and/or other interactions between the CoPc ring and GO.…”

Immobilization strategies for porphyrin-based molecular catalysts for the electroreduction of CO2

“…127 Secondly, covalent immobilization is a more robust alternative to non-covalent approaches which can show signs of catalyst displacement aer several hours of operation. 108,115,128 Here, the ligand groups of the porphyrin must be functionalized in a way that both allows for covalent binding to a surface, without destabilizing the molecule, while also remaining active for CO 2 RR. 112,129 Such an approach provides the opportunity for long-term stability and predictable This journal is © The Royal Society of Chemistry 2022 catalyst orientations, but leads to a high degree of constraints, generally adding complexity to the synthetic approach required.…”