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Spectroscopic characterization and electrocatalytical activity of tetrapyridylporphyrins intercalated into hydrated vanadium(V) oxide |
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| Authors: | Henrique E Toma Herenilton P Oliveira Hercílio R Rechenberg |
| Institution: | (1) Instituto de Química, Universidade de São Paulo, Caixa Postal 20780, CEP 01498-970 São Paulo, SP, Brazil;(2) Instituto de Física, Universidade de São Paulo, Caixa Postal 20780, CEP 01498-970 São Paulo, SP, Brazil |
| Abstract: | The intercalation ofmeso-tetrapyridylporphyrins into hydrated vanadium(V) pentoxide has been studied using X-ray diffraction; FTIR, electronic and Mössbauer spectroscopy; cyclic voltammetry and spectroelectrochemistry. The intercalation compound containing iron tetrapyridylporphyrin exhibits pronounced electrocatalytical activity in the reduction of molecular dioxygen, reflecting an enhanced reactivity of the catalyst in a confined medium. |
| Keywords: | Porphyrin intercalation compounds vanadium pentoxide films spectroelectrochemistry oxygen reduction Mö ssbauer spectra electrocatalysis |
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