Construction of hydrogel composites with superior proton conduction and flexibility using a new POM-based inorganic–organic hybrid

• DOI: 10.26599/pom.2022.9140005
• Publication Date: 2022-09-28T07:49:04Z
• Authors: Yuxin Wang; Ying Lu; Wensha Zhang; Tianyi Dang; Yanli Yang; Xue Bai; Shuxia Liu
• Keywords: Vinyl alcohol; Thermal Stability; Chemical Stability

Polyoxometalates (POMs) have attracted extensive interests as solid-state proton conductors due to their high conductivity and good thermal stability.However, the low humidity stability poor mechanical property of crystalline POMs greatly hinder practical application.Herein, on basis remarkable improvement that can be achieved by hybridizing with organic components, we prepared a new POM-based inorganic-organic hybrid, H[Zn(Hapca3-anions Zn(Hapca) 3 2+ cations.Compound 1 exhibits 1.16 × 10 -4 S•cm -1 at 55 °C, which remains stable relative 95%.To construct conductive materials property, introduced into poly(vinyl alcohol) (PVA)/glycerol (Gly) hydrogel obtained composites 1@PVA/Gly-x (x = 20%, 30%, 40%, where x is percentage mass total PVA).Remarkably, combine merits components.The 1@PVA/Gly-40% reaches 1.11 -2 ambient 75 outperforming most composite reported date.Moreover, displays elasticity toughness strain sensitivity.Additionally, assembled sensor for effective monitoring various human activities.This work provides platform transformation hybrids properties.