@article {47734,
	title = {Copolymers of bipyridinium and metal (Zn \& Ni) porphyrin derivatives; theoretical insights and electrochemical activity towards CO2},
	journal = {RSC Advances},
	volume = {11},
	year = {2021},
	month = {JUN},
	pages = {19844-19855},
	type = {Article},
	abstract = {This study reports the electropolymerization of novel keto functionalized octaethyl metal porphyrins (Zn2+ and Ni2+) in the presence of 4,4 {\textquoteleft}-bipyridine (4,4 {\textquoteleft}-bpy) as a bridging nucleophile. The polymer films were characterized by electrochemical, spectroscopic (UV-Vis, XPS, FT-IR and Raman spectroscopy) and imaging (AFM and SEM) techniques. The absorption and electronic spectra confirm the presence of both porphyrin and 4,4 {\textquoteleft}-bipyridine units in the film. The surface morphology reveals homogeneous film deposition with average roughness values of approx. 8 nm. The theoretical studies performed offered insights into the interplay of different metal centres (Zn2+ and Ni2+) and the keto functionality of the porphyrin unit in the formation of copolymer films. The electrochemical interaction of polymer films with CO2 suggests a reversible trap and release of CO2 with low energy barriers for both the polymers.},
	doi = {10.1039/d1ra01945g},
	author = {Kochrekar, Sachin and Kalekar, Ajit and Mehta, Shweta and Damlin, Pia and Salomaki, Mikko and Granroth, Sari and Meltola, Niko and Joshi, Kavita and Kvarnstrom, Carita}
}
