Mei-Rong Huang, Liangmei Rao, Jinfeng Chen, Xinyu Wang, Runhong Zhou, Fei Yu, Xin-Gui Li and Jie Ma*,
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Advancements in Electrode Materials: The Role of MXenes in Capacitive Deionization Technology
As the demand for clean water rises, the need for advanced materials and technologies intensifies. Capacitive deionization (CDI) has gained attention for water treatment including brackish water desalination, wastewater recycling, and selective resource recovery. Electrode materials play a critical role in CDI’s electrochemical performance, with MXenes, two-dimensional transition-metal carbides, and nitrides, offering a promising solution for low-energy brackish water desalination. MXenes possess excellent structural and electrochemical properties, overcoming limitations like concentration polarization in conventional CDI electrodes and reducing energy consumption. This review discusses MXenes’ properties and various preparation strategies, including intercalating agents, surface modification, heteroatom introduction, and 3D structure design. It also explores MXenes’ potential in CDI applications for seawater desalination, NH4+ recovery, and ion-selective removal, emphasizing their material and environmental benefits. The review concludes by suggesting future research directions for MXenes in CDI technology.
期刊介绍：
ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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