文献类型：期刊文献

英文题名：Dual-network polyvinyl alcohol/polyacrylamide/xanthan gum ionic conductive hydrogels for flexible electronic devices

作者：Zhou, Yiyang[1] Zhang, Lei[3] Lin, Xiangyu[3] Lu, Jie[1] Huang, Zhen[2] Sun, Penghao[2] Zhang, Yibing[1] Xu, Xu[2] Li, Qingtao[1] Liu, He[3,4]

第一作者：Zhou, Yiyang

通信作者：Li, QT[1];Liu, H[2];Liu, H[3]

机构：[1]Guangxi Univ, Coll Light Ind & Food Engn, Nanning 530004, Guangxi Zhuang, Peoples R China;[2]Nanjing Forestry Univ, Coll Chem Engn, Coinnovat Ctr Efficient Proc & Utilizat Forest Res, Nanjing 210037, Jiangsu, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Key Lab Biomass Energy & Mat, State Forestry Adm,Natl Engn Lab Biomass Chem Util, Nanjing 210042, Jiangsu, Peoples R China;[4]Chinese Acad Forestry, Inst Chem Ind Forestry Prod, Nanjing 210042, Peoples R China

年份：2023

卷号：233

外文期刊名：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES

收录：;EI(收录号：20240915628053);Scopus(收录号：2-s2.0-85147990982);WOS:【SCI-EXPANDED(收录号:WOS:000939582700001)】；

基金：This research was financially supported by the National Natural Science Foundation of China (31890774) , and Forestry Science and Technology Innovation and Extension Project of Jiangsu Province (LYKJ [2021] 04) .

语种：英文

外文关键词：Xanthan gum; Ionic conductive hydrogel; Anti -freezing; Flexible strain sensor; Zn-ion hybrid supercapacitor

摘要：Ionic conductive hydrogels (ICHs) have received widespread attention as an ideal candidate for flexible electronic devices. However, conventional ICHs failed in widespread applications due to their inability to simultaneously possess high toughness, high ionic conductivity, and anti-freezing properties. Here, polyvinyl alcohol (PVA) and polyacrylamide (PAAm) were first dissolved in the zinc chloride solution, in which zinc ions (Zn2+) act as ionic cross-linkers and conducting ions, followed by the introduction of xanthan gum (XG) with a unique structure of trisaccharide side chains into the PVA/PAAm semi-interpenetrating network to prepare a dualnetwork ICHs (refers as PPXZ). Enabled by the synergistic effect of intermolecular chemical covalent crosslinking and physical cross-linking, PPXZ hydrogels exhibit significantly improved mechanical properties without sacrificing electrical conductivity. Furthermore, PPXZ hydrogels are successfully applied to flexible electronic devices, such as strain sensors and zinc ion hybrid supercapacitors, exhibiting satisfactory sensing sensitivity and cycling stability at a wide temperature range, respectively. Even at a high current density (10 A g-1), the capacity of the supercapacitor retains 88.24 % after 10,000 cycles. This strategy provides new insight for ICHs in wide temperature-applied flexible electronic devices.