Study On The Influence Of Output Performance For Triboelectric Nanogenerator By Regulating The Micro Components Of Coordination Polymer

With the consume of non-renewable resources,the aggravation of ecology pollution and the rapid development of science and technology,developing sustainable clean and green energy sources is urgently needed.Harvesting energy from the surrounding environment has been proven to be one of the most promising ways to alleviate energy shortage.In addition,energy storage and conversion are also an important part of developing sustainable energy.Triboelectric nanogenerators（TENGs）is an energy collection and conversion device that can convert mechanical energy in the environment into electrical energy.The TENG electrode material is the primary factor affecting for the TENG output performance,but it is limited by the polymer and metal materials in the triboelectric nanogenerators sequence.Coordination polymers（CPs）are a fascinating type of porous crystalline material constructed by self-assembly of organic ligands and metal ions through coordination bonds.Diverse structures,large specific surface area and controllable structural design are some of the essential characteristics of CPs and have broad application prospects in the fields of energy storage,drug storage,battery.Herein,the influence of the change of micro composition on the output performance of TENG was explored by adjusting the micro composition of CPs.The research work of this paper mainly includes the following aspects:1.A series of coordination polymers 1-3[Cu（μ₃-H₃ttc）X]n（1:X=Cl,2:X=Br,3:X=I）]were formed by self-assembly of the same metal center Cu（I）and organic ligand trisulfide cyanic acid（H₃ttc）through coordination bonds.Compounds 1-3 are isostructural compounds with different terminal coordination groups and we use them as friction electrode materials of triboelectric nanogenerators to prepare TENGs（called Cl-,Br-and I-TENG,respectively）.Through a series of electrical characterization,we can clarify the influence of the change of structural micro components of CPs on the output performance of TENG.The results indicated that the polarity of the compound is greatly affected by halogen elements,which affects the output performance of TENG.I-TENG has the largest output performance,followed by Br-TENG and Cl-TENG.In practical application,I-TENG can be used in self powered anti-corrosion system to protect metal materials from corrosion.2.We designed two isostructural CPs（Ag-CP（4）,Pb-CP（5））based on the same organic ligand trisulfide cyanic acid（H₃ttc）and different metal centers（Ag,Pb）and we use them as friction electrode materials of triboelectric nanogenerators to prepare TENGs（called Ag-and Pb-TENG,respectively）which can clarify the influence of isostructural coordination polymers constructed by the same organic ligand and different metal centers on the output performance of TENG.The results showed that under the same conditions,the output properties of Ag-TENG and Pb-TENG prepared by compounds 4 and 5 have little difference,which provides a reference for the design of TENG friction electrode materials.3.Two coordination polymers（compounds 6 and 7,respectively）were synthesized by hydrothermal method based on the same metal center（Co）and slightly different organic ligands（terephthalic acid and 2,5-dihydroxyterephthalic acid）through coordination bond self-assembly.They were respectively used as electrode materials of TENG based on compounds 6and 7（BDC-and OH-BDC-TENG）were prepared to clarify the effect of the change of the microstructure of organic ligands on the output performance of TENG.The results show that BDC-TENG has high output performance,which provides a strategy to improve the output performance of TENG from the aspect of electrode material.