Modification of Nafion® Membrane via a Sol-Gel Route for Vanadium Redox Flow Energy Storage Battery Applications
Joint Authors
Huang, Shu-Ling
Yu, Hsin-Fu
Lin, Yung-Sheng
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-03-20
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Nafion 117(N-117)/SiO2-SO3H modified membranes were prepared using the 3-Mercaptopropyltrimethoxysilane (MPTMS) to react with H2O2 via in situ sol-gel route.
Basic properties including water uptake, contact angle, ion exchange capacity (IEC), vanadium ion permeability, impedance, and conductivity were measured to investigate how they affect the charge-discharge characteristics of a cell.
Furthermore, we also set a vanadium redox flow energy battery (VRFB) single cell by the unmodified/modified N-117 membranes as a separated membrane to test its charge/discharge performance and compare the relations among the impedance and efficiency.
The results show that the appropriate amount of SiO2-SO3H led into the N-117 membrane contributive to the improvement of proton conductivity and vanadium ion selectivity.
The permeability was effectively decreased from original 3.13 × 10−6 cm2/min for unmodified N-117 to 0.13 × 10−6 cm2/min for modified membrane.
The IEC was raised from original 0.99 mmol/g to 1.24 mmol/g.
The modified membrane showed a good cell performance in the VRFB charge/discharge experiment, and the maximum coulombic efficiency was up to 94%, and energy efficiency was 82%.
In comparison with unmodified N-117, the energy efficiency of modified membrane had increased more than around 10%.
American Psychological Association (APA)
Huang, Shu-Ling& Yu, Hsin-Fu& Lin, Yung-Sheng. 2017. Modification of Nafion® Membrane via a Sol-Gel Route for Vanadium Redox Flow Energy Storage Battery Applications. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1171874
Modern Language Association (MLA)
Huang, Shu-Ling…[et al.]. Modification of Nafion® Membrane via a Sol-Gel Route for Vanadium Redox Flow Energy Storage Battery Applications. Journal of Chemistry No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1171874
American Medical Association (AMA)
Huang, Shu-Ling& Yu, Hsin-Fu& Lin, Yung-Sheng. Modification of Nafion® Membrane via a Sol-Gel Route for Vanadium Redox Flow Energy Storage Battery Applications. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1171874
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171874