The Effect of the Spatial Structure of Electrosynthesized Polyporphyrins on the Catalytic Activity in the Oxygen Electroreduction Reaction
Year: 2025
Type: article
Abstract: The effect of the number of amino groups in the porphyrin molecule on the catalytic activity of polyporphyrin films was investigated.Polymerization of porphyrins was carried out by electrochemical method.Amino-substituted tetraphenylporphyrins -5-(4-aminophenyl)-10,15,20-triphenylporphyrin, 5,15-di(4-aminophenyl)-10,20-diphenylporphyrin, 5,10,15-tri(4-aminophenyl)-20-phenylporphyrin and 5,10,15,20-tetrakis(4-aminophenyl)porphyrin were used as monomers.Chemical composition of the obtained polyporphyrins was determined by spectral methods.Differences in the chemical structure of the porphyrin monomers lead to the formation of polymers with different spatial organization.Cross-linked polyporphyrins have a more developed surface and greater catalytic activity in the oxygen electroreduction reaction compared to porphyrins with a linear structure.It was found that poly-5,10,15,20tetrakis(4-aminophenyl)porphyrin, which has the most developed porous surface, exhibited the highest catalytic activity.
Source: Macroheterocycles
DOI: 10.6060/mhc256555t
Authors: Mariya V. Tesakova, Vladimir I. Parfenyuk
Institution: Institute of Solution Chemistry
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Award: G5877895198
OpenAlex ID: W4414660439
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