Please use this identifier to cite or link to this item:
Title: SPEEK membrane of ultrahigh stability enhanced by functionalized carbon nanotubes for vanadium redox flow battery
Authors: Ding M.
Ling X.
Yuan D. 
Cheng Y. 
Wu C.
Chao Z.-S.
Sun L.
Yan C.
Jia C.
Keywords: Carbon nanotube
Ion exchange membrane
Redox flow battery
Sulfonated poly(ether ether ketone)
Vanadium redox flow battery
Issue Date: 2018
Publisher: Frontiers Media S.A.
Citation: Ding M., Ling X., Yuan D., Cheng Y., Wu C., Chao Z.-S., Sun L., Yan C., Jia C. (2018). SPEEK membrane of ultrahigh stability enhanced by functionalized carbon nanotubes for vanadium redox flow battery. Frontiers in Chemistry 6 (JUL) : 286. ScholarBank@NUS Repository.
Abstract: Proton exchange membrane is the key factor of vanadium redox flow battery (VRB) as their stability largely determine the lifetime of the VRB. In this study, a SPEEK/MWCNTs-OH composite membrane with ultrahigh stability is constructed by blending sulfonated poly(ether ether ketone) (SPEEK) with multi-walled carbon nanotubes toward VRB application. The carbon nanotubes disperse homogeneously in the SPEEK matrix with the assistance of hydroxyl group. The blended membrane exhibits 94.2 and 73.0% capacity retention after 100 and 500 cycles, respectively in a VRB single cell with coulombic efficiency of over 99.4% at 60 mA cm-2 indicating outstanding capability of reducing the permeability of vanadium ions and enhancing the transport of protons. The ultrahigh stability and low cost of the composite membrane make it a competent candidate for the next generation larger-scale vanadium redox flow battery. © 2018 Ding, Ling, Yuan, Cheng, Wu, Chao, Sun, Yan and Jia.
Source Title: Frontiers in Chemistry
ISSN: 22962646
DOI: 10.3389/fchem.2018.00286
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
fchem.2018.00286.pdf2.32 MBAdobe PDF




checked on Jul 11, 2020

Page view(s)

checked on Jul 10, 2020


checked on Jul 10, 2020

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.