Enhanced stability of Ti3C2Tx MXene enabled by continuous ZIF-8 coating

Choi, Eunji; Lee, Juyun; Kim, Yong-Jae; Kim, Hyerim; Kim, Minsu; Hong, Jun‐Pyo; Kang, Yun Chan; Koo, Chong Min; Kim, Dae Woo; Kim, Seon Joon

doi:10.1016/j.carbon.2022.02.036

Cited by 49 publications

(23 citation statements)

References 36 publications

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“…[ 17 ] Numerous studies have been dedicated to mitigating MXene oxidation by limiting its exposure to water and oxygen. [ 18 ] Zhao et al. demonstrated that annealing Ti 3 C 2 T x MXene films at 600 °C under argon gas partially oxidized the surface of Ti 3 C 2 T x MXene and generated TiO 2 cladding on the exterior, which prevented further oxidation of the inner layers.…”

Section: Introductionmentioning

confidence: 99%

Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Liu

et al. 2022

Advanced Science

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Constructing faradaic electrode with superior desalination performance is important for expanding the applications of capacitive deionization (CDI). Herein, a simple one‐step alkalized treatment for in situ synthesis of 1D TiO2 nanowires on the surface of 2D Ti3C2 nanosheets, forming a Ti3C2‐MXene partially derived hierarchical 1D/2D TiO2/Ti3C2 heterostructure as the cathode electrode is reported. Cross‐linked TiO2 nanowires on the surface help avoid layer stacking while acting as the protective layer against contact of internal Ti3C2 with dissolved oxygen in water. The inner Ti3C2 MXene nanosheets cross over the TiO2 nanowires can provide abundant active adsorption sites and short ion/electron diffusion pathways. . Density functional theory calculations demonstrated that Ti3C2 can consecutively inject electrons into TiO2, indicating the high electrochemical activity of the TiO2/Ti3C2. Benefiting from the 1D/2D hierarchical structure and synergistic effect of TiO2 and Ti3C2, TiO2/Ti3C2 heterostructure presents a favorable hybrid CDI performance, with a superior desalination capacity (75.62 mg g−1), fast salt adsorption rate (1.3 mg g−1 min−1), and satisfactory cycling stability, which is better than that of most published MXene‐based electrodes. This study provides a feasible partial derivative strategy for construction of a hierarchical 1D/2D heterostructure to overcome the restrictions of 2D MXene nanosheets in CDI.

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Section: Introductionmentioning

confidence: 99%

Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Liu

et al. 2022

Advanced Science

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“…Furthermore, island growth with low crystallinity was also observed at higher temperatures of 60 °C and 70 °C. The precise relationship between growth temperature and particle size can vary depending on other factors such as precursor concentration, solvent, reaction time, and even by substrate [32,33]. Therefore, the critical temperature and relative humidity range suitable for membrane fabrication may differ based on experimental conditions and environmental factors.…”

Section: Particle and Grain Size Distributionmentioning

confidence: 99%

Influence of Humidity and Heating Rate on the Continuous ZIF Coating during Hydrothermal Growth

Choi¹,

Lee²,

Kim³

2023

Preprint

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Zeolitic imidazolate frameworks (ZIFs) have potential for various gas and ion separations due to their well-defined pore structure and relatively easy fabrication process compared to other metal-organic frameworks. As a result, many reports have focused on preparing polycrystalline and continuous ZIF layers on porous supports. In this study, we investigated how humidity and chamber temperature influence the structure of a ZIF-8 layer prepared by the hydrothermal method. We controlled the chamber temperature (ranging from 50 °C to 70 °C) and relative humidity (ranging from 20 % to 100 %) using a thermos-hygrostat chamber. We found that as the chamber temperature increased, ZIF-8 preferentially grew into particles rather than forming a continuous polycrystalline layer. By measuring the temperature of the reacting solution based on chamber humidity, we discovered that the heating rate of the reacting solution varied with humidity, even at the same chamber temperature. At higher humidity, thermal energy transfer was accelerated as water vapor delivered more energy to the reacting solution. Therefore, a continuous ZIF-8 layer could be formed more easily at low humidity ranges (ranging from 20 % to 40 %), while micron ZIF-8 particles were synthesized at a high heating rate. Our findings suggest that controlling the heating rate of the reacting solution is critical to preparing a continuous ZIF-8 layer, particularly for future scale-up of ZIF-8 membranes.

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“…A long-term storage of MXenes in an aqueous solution utilizing hydration chemistry with nontoxic inorganic salts inhibits the attack of MXene by free water and oxygen molecules. − As a result, oxidation can be largely inhibited, prolonging the shelf life to up to 400 days with negligible loss of surface chemistry. Other methods such as surface functionalization , with organic ligands can maintain MXene chemical stability for long-term applications such as anticorrosion additives.…”

Section: Ti3c2t X Mxene Polymer Composites For Anticorrosionmentioning

confidence: 99%

“…30−32 As a result, oxidation can be largely inhibited, prolonging the shelf life to up to 400 days with negligible loss of surface chemistry. Other methods such as surface functionalization 33,34 with organic ligands can maintain MXene chemical stability for long-term applications such as anticorrosion additives.…”

Section: Pristine Ti 3 C 2 Tmentioning

confidence: 99%

Ti₃C₂T_x MXene Polymer Composites for Anticorrosion: An Overview and Perspective

Amin

Brekel

Nemani

et al. 2022

ACS Appl. Mater. Interfaces

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As the most studied two-dimensional (2D) material from the MXene family, Ti3C2T x has constantly gained interest from academia and industry. Ti3C2T x MXene has the highest electrical conductivity (up to 24,000 S cm–1) and one of the highest stiffness values with a Young’s modulus of ∼ 334 GPa among water-dispersible conductive 2D materials. The negative surface charge of MXene helps to disperse it well in aqueous and other polar solvents. This solubility across a wide range of solvents, excellent interface interaction, tunable surface functionality, and stability with other organic/polymeric materials combined with the layered structure of Ti3C2T x MXene make it a promising material for anticorrosion coatings. While there are many reviews on Ti3C2T x MXene polymer composites for catalysis, flexible electronics, and energy storage, to our knowledge, no review has been published yet on MXenes’ anticorrosion applications. In this brief report, we summarize the current progress and the development of Ti3C2T x polymer composites for anticorrosion. We also provide an outlook and discussion on possible ways to improve the exploitation of Ti3C2T x polymer composites as anticorrosive materials. Finally, we provide a perspective beyond Ti3C2T x MXene composition for the development of future anticorrosion coatings.

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Enhanced stability of Ti3C2Tx MXene enabled by continuous ZIF-8 coating

Cited by 49 publications

References 36 publications

Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Influence of Humidity and Heating Rate on the Continuous ZIF Coating during Hydrothermal Growth

Ti₃C₂T_x MXene Polymer Composites for Anticorrosion: An Overview and Perspective

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Enhanced stability of Ti3C2Tx MXene enabled by continuous ZIF-8 coating

Cited by 49 publications

References 36 publications

Ti3C2‐MXene Partially Derived Hierarchical 1D/2D TiO2/Ti3C2 Heterostructure Electrode for High‐Performance Capacitive Deionization

Ti3C2‐MXene Partially Derived Hierarchical 1D/2D TiO2/Ti3C2 Heterostructure Electrode for High‐Performance Capacitive Deionization

Influence of Humidity and Heating Rate on the Continuous ZIF Coating during Hydrothermal Growth

Ti3C2Tx MXene Polymer Composites for Anticorrosion: An Overview and Perspective

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Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Ti₃C₂‐MXene Partially Derived Hierarchical 1D/2D TiO₂/Ti₃C₂ Heterostructure Electrode for High‐Performance Capacitive Deionization

Ti₃C₂T_x MXene Polymer Composites for Anticorrosion: An Overview and Perspective