Redox-Active Hybrid Materials for Pseudocapacitive Energy Storage

We aim to show the exciting development of sustainable pseudocapacitive hybrid materials for small and large scale electrochemical energy storage systems. 1–5 In our approach, we combine redox-active organic molecules with suitable carbon nanostructures and/or highly conductive metal carbides (MXenes) to improve the conductivity of organic materials. These combinations result in high energy and power density pseudocapacitive electrodes with improved cyclability. Using experimental and simulation techniques, we will discuss the interfacial organic-inorganic interactions, charge storage mechanisms, and preferred molecular orientations of organic molecules at the interface. We will also highlight the remaining challenges and future opportunities for improvement in nanostructured hybrid materials for the electrochemical energy storage. 1. M. Boota et al., Adv. Mater. , 28 , 1517–22 (2015) 2. M. Boota, K. B. Hatzell, E. C. Kumbur, and Y. Gogotsi, ChemSusChem , 8 , 835–843 (2015). 3. M. Boota, C. Chen, M. Bécuwe, L. Miao, and Y. Gogotsi, Energy Environ. Sci. , 9 , 2586–2594 (2016). 4. M. Boota et al., ChemSusChem , 8 , 3576–3581 (2015) 5. K. B. Hatzell, M. Boota, and Y. Gogotsi, Chem. Soc. Rev. , 44 , 8664–8687 (2015)