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Interlayer Structure Manipulation of FeOCl/MXene with Soft/Hard Interface Design for Safe Water Production Using Dechlorination Battery Deionization.
Lei, Jingjing; Zhang, Xiaochen; Wang, Junce; Yu, Fei; Liang, Mingxing; Wang, Xinru; Bi, Zhuanfang; Shang, Guangyi; Xie, Haijiao; Ma, Jie.
Afiliação
  • Lei J; Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P.R. China.
  • Zhang X; Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P.R. China.
  • Wang J; Research Center for Environmental Functional Materials, State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, 200092, P.R. China.
  • Yu F; College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, P.R. China.
  • Liang M; College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518060, P. R. China.
  • Wang X; College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P.R. China.
  • Bi Z; School of Physics, Beihang University, Beijing, 100191, P. R. China.
  • Shang G; School of Physics, Beihang University, Beijing, 100191, P. R. China.
  • Xie H; School of Physics, Beihang University, Beijing, 100191, P. R. China.
  • Ma J; Hangzhou Yanqu Information Technology Co. Ltd., Hangzhou, 310003, P. R. China.
Angew Chem Int Ed Engl ; 63(28): e202401972, 2024 Jul 08.
Article em En | MEDLINE | ID: mdl-38703075
ABSTRACT
Suffering from the susceptibility to decomposition, the potential electrochemical application of FeOCl has greatly been hindered. The rational design of the soft-hard material interface can effectively address the challenge of stress concentration and thus decomposition that may occur in the electrodes during charging and discharging. Herein, interlayer structure manipulation of FeOCl/MXene using soft-hard interface design method were conducted for electrochemical dechlorination. FeOCl was encapsulated in Ti3C2Tx MXene nanosheets by electrostatic self-assembly layer by layer to form a soft-hard mechanical hierarchical structure, in which Ti3C2Tx was used as flexible buffer layers to relieve the huge volume change of FeOCl during Cl- intercalation/deintercalation and constructed a conductive network for fast charge transfer. The CDI dechlorination system of FeOCl/Ti3C2Tx delivered outstanding Cl- adsorption capacity (158.47 ± 6.98 mg g-1), rate (6.07 ± 0.35 mg g-1 min-1), and stability (over 94.49 % in 30 cycles), and achieved considerable energy recovery (21.14 ± 0.25 %). The superior dechlorination performance was proved to originate from the Fe2+/Fe3+ topochemical transformation and the deformation constraint effect of Ti3C2Tx on FeOCl. Our interfacial design strategy enables a hard-to-soft integration capacity, which can serve as a universal technology for solving the traditional problem of electrode volume expansion.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2024 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Ano de publicação: 2024 Tipo de documento: Article
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