Cobalt-phthalocyanine (CoPc) catalysts have shown great promise for
enhancing the performance of lithium-oxygen (Li-O2) batteries, offering
benefits such as efficient lithium storage, high reversible capacity,
improved cycle performance, and enhanced charge and discharge capacity.
In this study, we focused on the synthesis of CoPc-carbon nanotube (CNT)
composites with porous structure. The composites were prepared by
synthesizing CoPc compounds and interacting them with CNTs using a 3D
ball mill shaker. Comprehensive spectroscopic techniques including NMR,
FTIR, and UV were employed to characterize the newly synthesized
phthalonitrile and phthalocyanine compounds. The surface morphologies of
the composite materials were investigated using SEM, EDX, mapping and
TEM analysis, enabling the determination of particle sizes and chemical
compositions. XRD and XPS analyses confirmed that the composite
structures were consistent with the existing literature. BET analysis
revealed multilayer isotherm for the composites, indicating their
favorable properties. The composite catalysts were incorporated into
batteries and their performance was evaluated through various
electrochemical tests. Notably, the CoPc1-CNT composite exhibited a
remarkable discharge capacity of 3400 mAh g-1catalyst in the prepared
battery.