Jornal de Nanomedicina e Nanotecnologia

Abstrato

Carbonaceous quantum dots/nan dots materials for potassium ion storage

Melina Olmos

Carbonaceous quantum dots/nanodots (CQDs/CNDs) have emerged as promising electrode materials for potassium ion batteries (PIBs) due to their unique structural and electrochemical properties. This abstract reviews the recent advancements and potential of CQDs/CNDs in PIB applications. The nanoscale dimensions of CQDs/CNDs offer high surface areato- volume ratios, facilitating efficient potassium ion adsorption and desorption kinetics. Surface functional groups on CQDs/CNDs further enhance potassium ion binding affinity and stabilize the electrode-electrolyte interface, contributing to improve cycling stability and electrochemical performance. Various synthesis methods allow precise control over the size, morphology, and surface chemistry of CQDs/CNDs, influencing their potassium ion storage capabilities. Experimental studies demonstrate that CQDs/CNDs exhibit high specific capacities, good rate capabilities, and long-term cycling stability, surpassing conventional carbon materials. Challenges include scalability of synthesis methods and understanding potassium ion diffusion mechanisms within CQDs/CNDs. Future research directions may explore hybrid CQDs/CNDs with other materials and employ advanced characterization techniques to optimize their performance further. Overall, CQDs/CNDs represent a promising class of materials for advancing potassium ion battery technology towards sustainable energy storage solutions.