Asset Details
Do you wish to reserve the book?
Tailoring interlayer spacing in MXene cathodes to boost the desalination performance of hybrid capacitive deionization systems
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Tailoring interlayer spacing in MXene cathodes to boost the desalination performance of hybrid capacitive deionization systems
Do you wish to request the book?
Tailoring interlayer spacing in MXene cathodes to boost the desalination performance of hybrid capacitive deionization systems
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Tailoring interlayer spacing in MXene cathodes to boost the desalination performance of hybrid capacitive deionization systems
2023
Overview
Capacitive deionization (CDI) is a promising technology to satisfy the global need for fresh water, since it can be both economical and sustainable. While two-dimensional transition metal carbides/nitrides (MXenes) exhibit great characteristics for use as CDI electrode materials, their tightly spaced layered structure renders intercalation inefficiency. In this study, the interlayer distance of MXenes is precisely modulated by inserting different quantity of one-dimensional bacterial fibers (BC), forming freestanding MXene/BC composite electrodes. Among the studied samples, MXene/BC-33% electrode with the interlayer spacing of 15.2 Å can achieve an optimized tradeoff among various desalination performance metrics and indicators. The salt adsorption capacity (SAC), the average salt adsorption rate (ASAR), the energy normalized adsorbed salt (ENAS), and the thermodynamic energy efficiency (TEE) of the MXene/BC-33% electrode are improved by 24%, 46%, 13%, and 66% respectively compared with those of pure MXene electrode. While the insertion of BC improves the ion diffusion pathways and facilitates the intercalation kinetics, the desalination performance decreases when the insertion amount of BC exceeds 40%. This is attributed to the overlarge resistance of the composite and the resulting increased energy consumption. This study reveals the desalination performance tradeoffs of MXene-based electrodes with different interlayer distances and also sheds light on the fundamental ion storage mechanisms of intercalation materials in a CDI desalination system.
Publisher
Tsinghua University Press
