Copolymers of bipyridinium and metal (Zn & Ni) porphyrin derivatives; theoretical insights and electrochemical activity towards CO2
| Title | Copolymers of bipyridinium and metal (Zn & Ni) porphyrin derivatives; theoretical insights and electrochemical activity towards CO2 |
| Publication Type | Journal Article |
| Year of Publication | 2021 |
| Authors | Kochrekar, S, Kalekar, A, Mehta, S, Damlin, P, Salomaki, M, Granroth, S, Meltola, N, Joshi, K, Kvarnstrom, C |
| Journal | RSC Advances |
| Volume | 11 |
| Issue | 32 |
| Pagination | 19844-19855 |
| Date Published | JUN |
| Type of Article | Article |
| Abstract | This study reports the electropolymerization of novel keto functionalized octaethyl metal porphyrins (Zn2+ and Ni2+) in the presence of 4,4 `-bipyridine (4,4 `-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 `-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 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 3.361 |
Divison category:
Physical and Materials Chemistry
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