Superprotonic conductivity of ketoenamine covalent-organic frameworks grafted by imidazole-based units

Zhang, Tao; Xia, Yu; Xie, Ya-Dian; Du, Hai-Jun; Shi, Zhi-Qiang; Hu, Hai-Liang; Zhang, Hong; Guo, Zhong-Cheng; Li, Gang

doi:10.1016/j.jcis.2024.03.164

Journal of Colloid and Interface Science

2024

DOI: 10.1016/j.jcis.2024.03.164

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Superprotonic conductivity of ketoenamine covalent-organic frameworks grafted by imidazole-based units

Tao Zhang,

Yu Xia,

Ya-Dian Xie

et al.

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Cited by 3 publications

References 73 publications

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Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Liu,

Huang,

Peng

et al. 2024

Angewandte Chemie

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Rapid, on‐site measurement of ppm‐level humidity in real time remains a challenge. In this work, we fabricated a few micrometer thick, β‐ketoenamine‐linked covalent organic framework (COF) membrane via interfacially confined condensation of 1,3,5‐tris‐(4‐aminophenyl)triazine (TTA) with 1,3,5‐tri‐formylphloroglucinol (TP). Based on the super‐sensitive and reversible response of the COF membrane to water vapor, we developed a high‐performance film‐based fluorescence humidity sensor, depicting unprecedented detection limit of 0.005 ppm, fast response/recovery (2.2 s/2.0 s), and a detection range from 0.005 to 100 ppm. Remarkably, more than 7,000‐time continuous tests showed no observable change in the performance of the sensor. The applicability of the sensor was verified by on‐site and real‐time monitoring of humidity in a glovebox. The superior performance of the sensor was ascribed to the highly porous structure and unique affinity of the COF membrane to water molecules as they enable fast mass transfer and efficient utilization of the water binding sites. Moreover, based on the remarkable moisture driven deformation of the COF membrane and its composition with the known polyimide films, some conceptual actuators were created. This study brings new ideas to the design of ultra‐sensitive film‐based fluorescent sensors (FFSs) and high‐performance actuators.

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Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Liu,

Huang,

Peng

et al. 2024

Angewandte Chemie

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Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Liu,

Huang,

Peng

et al. 2024

Angew Chem Int Ed

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Visible light-driven hydrogen production using an imine-based hybrid covalent organic framework with triazine and sulfone amine linkers

Omori,

Tateishi,

Katsumata

et al. 2025

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Superprotonic conductivity of ketoenamine covalent-organic frameworks grafted by imidazole-based units

Cited by 3 publications

References 73 publications

Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Interfacially Fabricated Covalent Organic Framework Membranes for Film‐Based Fluorescence Humidity Sensors and Moisture Driven Actuators

Visible light-driven hydrogen production using an imine-based hybrid covalent organic framework with triazine and sulfone amine linkers

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