High-density sulfonic acid-grafted covalent organic frameworks with efficient anhydrous proton conduction
Yu Guo, Xiuyang Zou, Weizheng Li, Yin Hu, Zhiyu Jin, Zhe Sun, Shicheng Gong, Siyu Guo, Feng Yan
Abstract
A high-density sulfonic acid-grafted COF was designed and synthesised with a high intrinsic proton conductivity (1.52 × 10 −4 S cm −1 at 120 °C). Further incorporation of a protic ionic liquid into the COF highly improved its proton conductivity to 2.21 × 10 −3 S cm −1 at 120 °C.
Topics & Concepts
Sulfonic acidAnhydrousProtonConductivityCovalent organic frameworkCovalent bondIonic conductivityThermal conductionChemistryMaterials scienceIonic bondingPolymer chemistryInorganic chemistryChemical engineeringOrganic chemistryPhysical chemistryElectrolyteIonElectrodeComposite materialQuantum mechanicsPhysicsEngineeringCovalent Organic Framework ApplicationsMetal-Organic Frameworks: Synthesis and ApplicationsFuel Cells and Related Materials