The recent advances in chloride‐ion capturing electrodes for capacitive deionization (CDI) are limited by the capacity, rate, and stability of desalination. This work introduces Ti₃C₂T_x/Ag synthesized via a facile oxidation‐reduction method and then uses it as an anode for chloride‐ion capture in CDI. Silver nanoparticles are formed successfully and uniformly distributed with the layered‐structure of Ti₃C₂T_x. All Ti₃C₂T_x/Ag samples are hydrophilic, which is beneficial for water desalination. Ti₃C₂T_x/Ag samples with a low charge transfer resistance exhibit both pseudocapacitive and battery behaviors. Herein, the Ti₃C₂T_x/Ag electrode with a reaction time of 3 h exhibits excellent desalination performance with a capacity of 135 mg Cl⁻ g⁻¹ at 20 mA g⁻¹ in a 10 × 10⁻³ m NaCl solution. Furthermore, low energy consumption of 0.42 kWh kg⁻¹ Cl⁻ and a desalination rate of 1.5 mg Cl⁻ g⁻¹ min⁻¹ at 50 mA g⁻¹ is achieved. The Ti₃C₂T_x/Ag system exhibits fast rate capability, high desalination capacity, low energy consumption, and excellent cyclability, which can be ascribed to the synergistic effect between the battery and pseudocapacitive behaviors of the Ti₃C₂T_x/Ag hybrid material. This work provides fundamental insight into the coupling of battery and pseudocapacitive behaviors during Cl⁻ capture for electrochemical desalination.

中文翻译：

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将电池型和赝电容电荷存储结合在 Ag/Ti3C2TX MXene 电极中，以高电容和快速离子传输捕获氯离子

用于电容去离子（CDI）的氯离子捕获电极的最新进展受到脱盐容量、速率和稳定性的限制。这项工作介绍了通过简单的氧化还原方法合成的 Ti ₃ C ₂ T _x /Ag，然后将其用作 CDI 中氯离子捕获的阳极。_{成功形成银纳米粒子，均匀分布，具有Ti 3} C ₂ T _x层状结构。所有Ti ₃ C ₂ T _x /Ag样品都是亲水性的，这有利于海水淡化。具有低电荷转移电阻的Ti ₃ C ₂ T _{x /Ag 样品同时表现出赝电容和电池行为。}其中，反应时间为3 h的Ti ₃ C ₂ T _x /Ag电极在10 × 10 ^-3 m NaCl溶液中表现出优异的脱盐性能，在20 mA g ^-1下容量为135 mg Cl ^-  g -1 。此外，在50 mA g ^-1下实现了0.42 kWh kg ^-1  Cl ^-的低能耗和1.5 mg Cl ^-  g ^-1  min ^-1的脱盐率。Ti ₃ C ₂ T _x /Ag体系具有快速倍率性能、高脱盐能力、低能耗和优异的循环性能，这可归因于电池和Ti ₃ C ₂ T _x /赝电容行为之间的协同效应。银杂化材料。^{这项工作为电化学脱盐的 Cl −}捕获过程中电池和赝电容行为的耦合提供了基本的见解。