期刊论文、会议论文

Ding, Mei;Cheng, Yuanhang

英文

Surface and Coatings Technology

0257-8972

2019

358

190-194

9th International Conference on Technological Advances of Thin Films and Surface Coatings (ThinFilms)

JUL 17-20, 2018

Shenzhen, PEOPLES R CHINA

[Chang, Shunli;Ye, Jiaye;Wu, Chun;Ding, Mei;Long, Yong;Jia, Chuankun] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410114, Hunan, Peoples R China.^[Ye, Jiaye] Chongqing Univ, Sch Mat Sci & Engn, State Key Lab Mech Transmiss, Chongqing 400044, Peoples R China.^[Zhou, Wei] Hunan Univ Technol, Coll Met & Mat Engn, Zhuzhou 412008, Peoples R China.^[Cheng, Yuanhang] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore, Singapore.^[Jia, Chuankun] Changsha Univ Sci & Technol, Sch Traff & Transportat Engn, Changsha 410114, Hunan, Peoples R China.

PO BOX 564, 1001 LAUSANNE, SWITZERLAND

ELSEVIER SCIENCE SA

10.1016/j.surfcoat.2018.11.028

The conductive cation ion in ZFB is the K+ ion. To increase the conductivity of the membrane, the pristine SPEEK membrane was transform from H+ formed to K+ formed. Fig. 2 is the Fourier transform infrared spectroscopy (FT-IR) of the pristine SPEEK and SPEEK-K membranes. The peaks at 1083 cm−1, and 693 cm−1 can be assigned to the symmetric stretching of OSO, and SO stretching, respectively. This phenomenon indicates that the pure SPEEK membrane has been successfully transformed the H+ form to K+

本校为第一且通讯机构

The ions exchange membrane is the key component in the redox flow battery (RFB), which determines the cycle life and the cost of RFB. Herein, we successfully prepared a low-cost K + formed sulfonated poly(ether ether ketone) (SPEEK-K) membrane for the neutral Zn-Fe redox flow battery (ZFB) by solution casting method. The ZFB based on our SPEEK-K membrane shows outstanding performance with the coulombic efficiency and energy efficiency over 95% and 78%, respectively, at a high current density of 40 mA cm −2 . The cost of SPEEK-K membrane for ZF...