A Cu–Co3O4 hybrid//activated carbon EES device is successfully assembled, and shows great performance, which represents the first report of this material being applied for supercapacitors.
An overview of high-entropy materials for energy applications, including H2 catalysis and storage, CO2 conversion, O2 catalysis and electrochemical energy storage, is given and the challenges and opportunities within this field are discussed.
High-entropy energy materials: challenges and new opportunities