Substrate Dependent Charge Transfer Kinetics at the Solid/Liquid Interface of Carbon‐Based Electrodes with Potential Application for Organic Na‐Ion Batteries

• DOI: 10.1002/ijch.202100082
• Publication Date: 2021-10-09T17:47:42Z
• Authors: Daniel Werner; Thöny Alexander; Daniel Winkler; Dogukan H. Apaydin; Thomas Loerting; Engelbert Portenk...
• Keywords: Electrochemical kinetics

Abstract Electroactive organic semiconducting pigments represent a group of very promising electrode materials for the next generation energy conversion and storage technologies. However, most suffer from high solubility in electrolytes poor electrical conductivity, which have severely impeded their practical applications. Among different strategies to improve electrochemical performance, using conductive carbon substrates form composite electrodes is one used methods solve these problems. In this work we investigate role towards charge transfer kinetics at solid/liquid interface with potential application sodium (Na)‐ion batteries. This study reveals that related not only optimal electronic path but also ionic active material. Perylentetracarboxylicdiimide as material coated on graphite/copper paper substrates. The morphology, structure, chemical composition our are investigated via scanning electron microscopy, X‐ray photoelectron Raman spectroscopy. A thorough kinetic analysis systematically implemented by cyclic voltammetry impedance We performed quantitative resistance capacitive components theory transmission line model spectroscopy symmetric cells. Our results indicate decrease pore key achieve systems. will therefore contribute future, efficient design low kinetics. may prove great importance development technologies, including heterojunction solar cells, electrocatalysts/photocatalysts water splitting, dioxide (CO 2 ) reduction lithium (Li)‐ Na‐ion