Metal ion assistant transformation strategy to synthesize catechol-based metal-organic frameworks from Ti3C2Tx precursors

Weikang Wang; Yan Bai; Pin Yang; Shuai Yuan; Feiyang Li; Weiwei Zhao; Beibei Jin; Xuan Zhang; Shujuan Liu; Daqiang Yuan; Qiang Zhao

doi:10.1016/j.scib.2023.07.038

Metal ion assistant transformation strategy to synthesize catechol-based metal-organic frameworks from Ti₃C₂T_x precursors

Sci Bull (Beijing). 2023 Oct 15;68(19):2180-2189. doi: 10.1016/j.scib.2023.07.038. Epub 2023 Jul 26.

Authors

Weikang Wang¹, Yan Bai¹, Pin Yang¹, Shuai Yuan², Feiyang Li³, Weiwei Zhao⁴, Beibei Jin¹, Xuan Zhang¹, Shujuan Liu¹, Daqiang Yuan⁵, Qiang Zhao⁶

Affiliations

¹ State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
² School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
³ School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212100, China.
⁴ State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China. Electronic address: iamwwzhao@njupt.edu.cn.
⁵ State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China. Electronic address: ydq@fjirsm.ac.cn.
⁶ State Key Laboratory of Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China; College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), Jiangsu Province Engineering Research Center for Fabrication and Application of Special Optical Fiber Materials and Devices, Nanjing University of Posts & Telecommunications, Nanjing 210023, China. Electronic address: iamqzhao@njupt.edu.cn.

PMID: 37558535
DOI: 10.1016/j.scib.2023.07.038

Abstract

Chemical transformation strategy is capable of fabricating nanomaterials with well-defined structures and fascinating performance via controllable crystallization kinetics in the phase transformation. V₂CT_x MXene has been used as precursors to fabricate vanadium porphyrin metal-organic frameworks (V-PMOFs) via the coordination of deprotonated carboxylic acid ligands. However, the rational and in-depth exploration of synthesis mechanism with the aim of enriching the variety of MXene (i.e., Ti₃C₂T_x) and organic ligands (i.e., catechol-based) to design new MOFs is rarely reported. Herein, we have first developed a metal ion assistant transformation strategy to synthesize three-dimensional catechol-based TiCu-HHTP (HHTP = 2,3,6,7,10,11-hexahydroxytriphenylene) MOFs with a non-interpenetrating SrSi₂ (srs) framework using two-dimensional Ti₃C₂T_x as precursors. The unique synergetic transformation mechanism involves the electron transfer from Ti₃C₂T_x to electrostatically adsorbed Cu²⁺ ion for redox reaction, the subsequent Ti-C bond rupture for Ti⁴⁺ ion release, and the continuous chelation coordination between Ti⁴⁺/Cu²⁺ and HHTP. Ti₃C₂T_x precursors and auxiliary metal ion could be rationally substituted by V₂CT_x and Mⁿ⁺ (e.g., Ni²⁺, Co²⁺, Mn²⁺, and Zn²⁺), respectively. This strategy lays the foundation for the design and synthesis of innovative and multifarious MOFs derived from MXene or other unconventional metal precursors.

Keywords: Electron transfer; Insoluble metal precursors; MXene; Metal ion assistant transformation strategy; Metal–organic frameworks.