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      Spectroelectrochemical investigation of redox states in a polypyrrole/lignin composite electrode material

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          Abstract

          Spectroelectrochemical investigation of redox states in a polypyrrole/lignin composite electrode material.

          Abstract

          We report spectroelectrochemical studies to investigate the charge storage mechanism of composite polypyrrole/lignin electrodes. Renewable bioorganic electrode materials were produced by electropolymerization of pyrrole in the presence of a water-soluble lignin derivative acting as a dopant. The resulting composite exhibited enhanced charge storage abilities due to a lignin-based faradaic process, which was expressed after repeated electrochemical redox of the material. The in situ FTIR spectroelectrochemistry results show the formation of quinone groups, and reversible oxidation–reduction of these groups during charge–discharge experiments in the electrode materials. The most significant IR bands include carbonyl absorption near 1705 cm −1, which is attributed to the creation of quinone moieties during oxidation, and absorption at 1045 cm −1 which is due to hydroquinone moieties.

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          Synthesis of electrically conducting organic polymers: halogen derivatives of polyacetylene, (CH) x

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            Electrochemically Active Polymers for Rechargeable Batteries

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              Energy storage systems—Characteristics and comparisons

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                Author and article information

                Journal
                JMCAET
                Journal of Materials Chemistry A
                J. Mater. Chem. A
                Royal Society of Chemistry (RSC)
                2050-7488
                2050-7496
                2015
                2015
                : 3
                : 24
                : 12927-12937
                Affiliations
                [1 ]Biomolecular and Organic Electronics
                [2 ]IFM
                [3 ]Linköping University
                [4 ]Linköping
                [5 ]Sweden
                [6 ]Division of Molecular Physics
                [7 ]Institute of Chemistry and Technical Electrochemistry
                [8 ]Poznan University of Technology
                [9 ]Poznan
                [10 ]Poland
                Article
                10.1039/C5TA00788G
                6e843ff2-203a-4618-b98d-8c6c22307f17
                © 2015
                History

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