Facial synthesis of carbon nanotube interweaved FeOOH as chloride-insertion electrode for highly efficient faradic capacitive deionization

IF 4.8 2区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
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引用次数: 0

Abstract

Faradic-based capacitive deionization (FDI) has been widely acknowledged as one of the most promising desalination techniques to solve the freshwater crisis, yet was largely limited by heavily trailed development of its anode materials, which subsequently hindered its desalination performance in terms of both desalination capacity and stability. Herein, we developed a new type of anode material for FDI by coupling chloride-insertion FeOOH with carbon nanotubes (CNTs@FeOOH). The essence of this study lay in the composition of FeOOH with CNTs that could not only facilitate charge/electron transfer but also prevent structural aggregation. Consequently, the CNTs@FeOOH-based FDI system displays excellent desalination performance (desalination capacity: 50.36 mg g−1; desalination rate: 0.41 mg g−1 s−1) with robust long-term stability (13.86 % reduction over 80 cycles), which could motivate the future development of other highly-efficient desalination systems.

面合成碳纳米管交织的 FeOOH 作为高效远电容去离子的氯化物插入电极
基于法拉第电容式去离子技术(FDI)已被公认为最有希望解决淡水危机的海水淡化技术之一,但由于其阳极材料的开发严重滞后,在很大程度上限制了其海水淡化能力和稳定性。在此,我们开发了一种新型 FDI 阳极材料,将氯离子插入式 FeOOH 与碳纳米管(CNTs@FeOOH)耦合在一起。这项研究的关键在于铁氧体与碳纳米管的组成,这种组成不仅能促进电荷/电子转移,还能防止结构聚集。因此,基于 CNTs@FeOOH 的 FDI 系统显示出卓越的脱盐性能(脱盐能力:50.36 毫克/克-1;脱盐率:0.41 毫克/克-1 秒-1)和强大的长期稳定性(80 次循环后脱盐率降低 13.86%),这将推动未来其他高效脱盐系统的开发。
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来源期刊
CiteScore
8.60
自引率
2.10%
发文量
2812
审稿时长
49 days
期刊介绍: Progress in Natural Science: Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials. The emphasis is placed on original research, both analytical and experimental, which is of permanent interest to engineers and scientists, covering all aspects of new materials and technologies, such as, energy and environmental materials; advanced structural materials; advanced transportation materials, functional and electronic materials; nano-scale and amorphous materials; health and biological materials; materials modeling and simulation; materials characterization; and so on. The latest research achievements and innovative papers in basic theoretical studies and applied research of material science will be carefully selected and promptly reported. Thus, the aim of this Journal is to serve the global materials science and technology community with the latest research findings. As a service to readers, an international bibliography of recent publications in advanced materials is published bimonthly.
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