Amayuelas Eder, Sharma Sandeep Kumar, Utpalla Pranav, Mor Jaideep, Bartolomé Luis, Carter Marcus, Trump Benjamin, Yakovenko Andrey Andreevich, Zajdel Pawel, Grosu Yaroslav
Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, Spain.
Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
J Phys Chem C Nanomater Interfaces. 2023 Sep 12;127(37):18310-18315. doi: 10.1021/acs.jpcc.3c04368. eCollection 2023 Sep 21.
Hydrophobic flexible zeolitic imidazole frameworks (ZIFs) represent reference microporous materials in the area of mechanical energy storage, conversion, and dissipation via non-wetting liquid intrusion-extrusion cycle. However, some of them exhibit drawbacks such as lack of stability, high intrusion pressure, or low intrusion volume that make them non-ideal materials to consider as candidates for real applications. In this work, we face these limitations by exploiting the hybrid ZIF concept. Concretely, a bimetallic SOD-like ZIF consisting of Co and Zn ions was synthesized and compared with Co-ZIF (ZIF-67) and Zn-ZIF (ZIF-8) showing for the first time that the hybrid ZIF combines the good stability of ZIF-8 with the higher water intrusion volume of ZIF-67. Moreover, it is shown that the hybrid-ZIF approach can be used to tune the intrusion/extrusion pressure, which is crucial for technological applications.
疏水性柔性沸石咪唑框架材料（ZIFs）是通过非浸润液体侵入-挤出循环进行机械能存储、转换和耗散领域的参考微孔材料。然而，其中一些材料存在诸如稳定性不足、侵入压力高或侵入体积低等缺点，这使得它们并非实际应用候选材料的理想选择。在这项工作中，我们通过利用混合ZIF概念来克服这些限制。具体而言，合成了一种由钴和锌离子组成的类SOD双金属ZIF，并将其与Co-ZIF（ZIF-67）和Zn-ZIF（ZIF-8）进行比较，首次表明混合ZIF结合了ZIF-8的良好稳定性和ZIF-67的较高水侵入体积。此外，研究表明混合ZIF方法可用于调节侵入/挤出压力，这对技术应用至关重要。
