Cooperative proton transportation based on the reversible single crystal–single crystal transformation in a highly water-stable Cu-MOF with its facile and scalable preparation. Issue 44 (25th October 2019)

• Record Type: Journal Article
• Authors: Zhang, Jun; Ma, Xiaofan; Kong, Weili; Lu, Guodong; Xuan, Xiaopeng
• Is Part Of: CrystEngComm. Volume 21:Issue 44(2019)
• Page Start: 6693
• Page End: 6697
• Publication Date: 2019-10-25
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c9ce01334b
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A Cu-MOF with excellent acid–base stability in boiling water was constructed under mild conditions. This MOF was very suitable for scaled-up preparation, and exhibits distinct proton conductivity at temperatures above and below 75 °C. Abstract : Here, we have reported a highly crystalline Cu-MOF (denoted as HNNU-2 ) that was synthesized via a one-step method in a flask at close to room temperature. HNNU-2 could not only be prepared on a larger scale, but also exhibited an excellent chemical stability, which maintained its perfect framework even after being bathed in boiling water in a pH range of 5–13 for one week. Based on a reversible single crystal–single crystal transformation, cooperative proton transportation reasonably explains the enormous variation in the proton conductivity from 10 −7 S cm −1 below 75 °C to 10 −3 S cm −1 above 75 °C.