Major Contributions

1. Development of a Novel 2D MXCT Membrane for Osmotic Power Generation
The study introduces a novel 2D MXCT (MXene/Cu-TCPP) lamellar membrane that combines MXene’s rich functional groups with Cu-TCPP’s sub-2 nm framework channels. This innovative structure addresses the water-stability limitations of Cu-TCPP and achieves ultralow resistance, enabling a high power density output of ~8.29 W/m², which is ~275% higher than pristine MXene membranes.

2. Enhanced Ionic Transport and Reduced Resistance
By leveraging the orderly sub-2 nm ion channels of Cu-TCPP and the interlayer arrangement with MXene, the MXCT membrane exhibits significantly improved ionic conductivity and reduced internal resistance (9 kΩ). These features enable faster ion permeation compared to conventional 2D nanofluidic membranes, overcoming the tortuous pathways that typically hinder ion transport.

3. Demonstration of Stability and Practical Applicability
The MXCT membrane demonstrates excellent long-term stability in water, retaining ~92% of its initial ionic current after three days and ~80% of its power output after seven days. This robustness, along with its superior performance compared to state-of-the-art single-layer 2D nanosheet-based membranes, highlights its potential for practical osmotic power harvesting and energy conversion applications.


主要貢獻

1. 開發新型 2D MXCT 膜以提升滲透能發電效率
本研究提出了一種新型的 2D MXCT（MXene/Cu-TCPP）層狀膜，結合了 MXene 的豐富官能團與 Cu-TCPP 的亞 2 奈米框架通道結構。此創新設計解決了 Cu-TCPP 在水中穩定性不足的問題，實現了超低阻抗，並達到約 8.29 W/m² 的高功率密度輸出，比原始 MXene 膜高出約 275%。

2. 增強離子傳輸並降低內部阻抗
透過利用 Cu-TCPP 的有序亞 2 奈米離子通道與 MXene 的層間排列，MXCT 膜展現出顯著提升的離子導電性與降低的內部阻抗（9 kΩ）。此特性使得離子滲透速度明顯快於傳統的 2D 納米流體膜，有效克服了常見的曲折通道對離子傳輸的阻礙。

3. 穩定性與實用性的驗證
MXCT 膜在水中的長期穩定性表現優異，在連續運行三天後仍保留約 92% 的初始離子電流，且七天後仍維持約 80% 的功率輸出。其穩定性及性能均優於目前最先進的單層 2D 納米片基膜，展現其在實際滲透能發電與能源轉換應用中的潛力。