扬州大学庞欢等报道了高性能超级电容器用三维MXene/金属有机骨架复合材料的原位生长方法。相关研究成果于2022年1月10日发表于国际顶尖学术期刊《德国应用化学》。

该文中，研究人员提出了一种通用方法合成均匀三维（3D）金属碳化物、氮化物、碳氮化物（MXens）/金属有机骨架（MOFs）复合材料（Ti3C2TX/Cu-BTC、Ti3C2TX/Fe、Co-PBA、Ti3C2TX/ZIF-8和Ti3C2TX/ZIF-67），它们结合了MOFs和mxens的优点，以增强稳定性和改善导电性。随后，以Ti3C2TX/ZIF-67为原料合成了具有优异电子和离子传输性能的三维空心Ti3C2TX/ZIF-67/CoV2O6复合材料。Ti3C2TX/ZIF-67/CoV2O6电极的比电容为285.5Fg^-1，远高于ZIF-67和Ti3C2TX/ZIF-67电极。

本研究为MXene/MOF复合材料和复杂中空结构的设计和合成开辟了一条新途径，其结构和组成可定制，可用于各种应用。

附：英文原文

Title: In Situ Growth of Three-Dimensional MXene/Metal-Organic Framework Composites for High-Performance Supercapacitors

Author: Huan Pang, Chunli Liu, Yang Bai, Wenting Li, Feiyu Yang, Guangxun Zhang

Issue&Volume: 2022-01-10

Abstract: In this study, we propose a versatile method for synthesizing uniform three-dimensional (3D) metal carbides, nitrides, and carbonitrides (MXenes)/metal-organic frameworks (MOFs) composites (Ti  3  C  2  T  X  /Cu-BTC, Ti  3  C  2  T  X  /Fe,Co-PBA, Ti  3  C  2  T  X  /ZIF-8, and Ti  3  C  2  T  X  /ZIF-67) that combine the advantages of MOFs and MXenes to enhance stability and improve conductivity. Subsequently, 3D hollow Ti  3  C  2  T  X  /ZIF-67/CoV  2  O  6  composites with excellent electron and ion transport properties derived from Ti  3  C  2  T  X  /ZIF-67 were synthesized. The specific capacitance of the Ti  3  C  2  T  X  /ZIF-67/CoV  2  O  6  electrode was 285.5 F g  1  , which is much higher than that of the ZIF-67 and Ti  3  C  2  T  X  /ZIF-67 electrode. This study opens a new avenue for the design and synthesis of MXene/MOF composites and complex hollow structures with tailorable structures and compositions for various applications.

DOI: 10.1002/anie.202116282

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202116282