Linker Effect in PEDOT/Quinone Organic Battery Materials
2016 (English)Conference paper, Poster (Other academic)
One way to ensure sustainable electrical energy storage is to use organic materials. Organic materials can be made from renewable resources and thus the use of limited resources needed for inorganic materials is avoided. Conducting redox polymers (CRPs) are one type of organic material that can be used in e.g. batteries. CRPs consist of a conducting polymer backbone, a redox active pendant group, and a linker connecting the pendant group to the polymer. The present work focuses on the well-studied conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) with quinone pendant groups in water based systems. Quinones constitute a class of redox active molecules used in nature e.g. for electron transport in photosynthesis and in respiration. Although the third unit, the linker, is a passive part in the system it can greatly impact the behavior of the resulting CRP. In this report we present scan rate dependent voltammetric data as well as EQCM and in-situ conductance on two CRPs differing only by two CH2 groups in the linker. Figure 1 shows molecular structure, CV, and EQCM data of I and II indicating the significant influence that the minor difference in the linking unit has on the redox chemistry in these systems.
Place, publisher, year, edition, pages
quinone conducting redox polymer PEDOT linker
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-298111OAI: oai:DiVA.org:uu-298111DiVA: diva2:967632
67th Annual Meeting of the International Society of Electrochemistry