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Issue 26, 2011
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Towards organic energy storage: characterization of 2,5-bis(methylthio)thieno[3,2-b]thiophene

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Abstract

Electrical energy storage devices will play a key role in the development of sustainable energy production and usage, and for integrating intermittent and renewable sources into the energy landscape. One strategy for developing improved energy storage materials and devices is to take advantage of capacitive and pseudocapacitive electrodes such as activated carbons or conducting polymers. However, these materials generally suffer from low energy densities. Functionalization of these materials with pendant redox units has been proposed as a method to improve the energy densities while maintaining the high rate capability. In this report, we present the synthesis and thorough characterization of one such candidate pendant molecule, 2,5-bis(methylthio)thieno[3,2-b]thiophene, and assess its potential use as a cathode material. Electrochemical, spectroelectrochemical and computational data suggest that bis(methylthio)thieno[3,2-b]thiophene is a lightweight molecule, capable of undergoing multiple reversible redox processes, and a good candidate for improving the energy density of cathode materials while still offering high rate (power) capability.

Graphical abstract: Towards organic energy storage: characterization of 2,5-bis(methylthio)thieno[3,2-b]thiophene

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Publication details

The article was received on 14 Feb 2011, accepted on 19 Apr 2011 and first published on 17 May 2011


Article type: Paper
DOI: 10.1039/C1JM10664C
Citation: J. Mater. Chem., 2011,21, 9553-9563
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    Towards organic energy storage: characterization of 2,5-bis(methylthio)thieno[3,2-b]thiophene

    S. E. Burkhardt, S. Conte, G. G. Rodriguez-Calero, M. A. Lowe, H. Qian, W. Zhou, J. Gao, R. G. Hennig and H. D. Abruña, J. Mater. Chem., 2011, 21, 9553
    DOI: 10.1039/C1JM10664C

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