Controllable preparation of an eggshell membrane supported hydrogel electrolyte with thickness-dependent electrochemical performance. Issue 46 (9th November 2016)

• Record Type: Journal Article
• Authors: Liu, Xinhua; Yin, Chengyao; Yang, Jie; Liang, Meiying; Wei, Junjie; Zhang, Ziyang; Wang, Huanlei; Wang, Qigang
• Is Part Of: Journal of materials chemistry. Volume 4:Issue 46(2016)
• Page Start: 17933
• Page End: 17938
• Publication Date: 2016-11-09
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c6ta07341g
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : The controllable preparation of eggshell-hydrogels provides a new insight into composite material preparation from bio-waste eggshell membrane in energy devices with thickness-dependent electrochemical performances. Abstract : The preparation of thin gel electrolyte membranes with controllable thickness is important to explore the thickness-dependent electrochemical behaviors; this can further guide the fabrication of energy devices. Here we employ an in situ polymerization method to prepare a BSA–PDMAA–SiO2 cross-linked nanocomposite hydrogel on surfaces of eggshell membranes, which can be used as integrated separator and electrolyte in a supercapacitor after absorbing the electrolyte. The novel controlled thickness of the coated hydrogel therefore offers superior space utilization essential for all-solid-state devices. The composite gel can reach a high ionic conductivity of 8.8 mS cm −1 and a resulting C sp value of 161 F g −1 at the current density of 1 A g −1 when assembled in the supercapacitor, while the eggshell membrane based device has limited values of 2.7 mS cm −1 and 88 F g −1 . A new insight into hybrid material preparation from low-cost natural life waste is presented in this work to obtain high performance gel electrolytes in energy devices.