Recycling of Coordination Nanomaterials-Based Energy Devices

Coordination nanomaterials (CNs) have been regarded as highly potential candidates in recent engineering and material science research for a wide range of energy devices due to their distinct features. These materials exhibit unique characteristics such as tunable structures, porosity, and conductivity, rendering them well-suited for applications in energy-harvesting devices, electrochemical energy storage systems, and photocatalysts for synthesizing solar hydrogen. Therefore, recycling CNs-based energy devices is a crucial practice that adheres to the principles of the circular economy and promotes the efficient utilization of resources, environmental stewardship, and sustainable development of the energy sector. The recycled materials have been effectively utilized in diverse applications including fuel cells, water electrolyzers, batteries, and supercapacitors. This chapter comprehensively reviews the fundamentals and recent advancements in CNs-based energy devices, including fuel cells, water electrolyzers, batteries, and supercapacitors. Moreover, we briefly address the significance of recycling CNs-based energy devices to retrieve valuable metals from them. Ultimately, the challenges and prospects associated with CNs-based energy storage devices are also highlighted.