Study on Nafion/Nafion-g-poly (sulfobetaine methacrylate)-blended amphoteric membranes for vanadium redox flow battery
Study on Nafion/Nafion-g-poly (sulfobetaine methacrylate)-blended amphoteric membranes for vanadium redox flow battery
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全钒氧化还原液流电池用Nafion/Nafion-g-聚(磺基甜菜碱甲基丙烯酸酯)共混两性膜的研究
DOI：
10.1007/s11581-019-03228-6
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发表时间：
2019-09
期刊：
影响因子：
2.8
通讯作者：
Xiangguo Teng
中科院分区：
文献类型：
--
作者：
Jicui Dai;Hongqiang Zhang;Zhaobin Sui;Huili Hu;Peng Gao;Yongming Zhu;Yichao Dong;Xiangguo Teng
为了降低钒离子的渗透性，同时保持其高稳定性，采用原子自由基聚合（ATRP）方法在均相溶液中将两性离子磺基甜菜碱甲基丙烯酸酯（SBMA）引入到Nafion基体上。然后将Nafion接枝的聚SBMA（N-g-PSBMA）溶液与普通Nafion溶液共混，采用溶液浇铸法制备了Nafion/Nafion-g-PSBMA（N/N-g-PSBMA）两性膜。采用衰减全反射傅里叶变换红外光谱（ATR-FTIR）、能量色散X射线光谱（EDX）、扫描电子显微镜（SEM）和水接触角分析对接枝树脂和膜进行了表征。结果表明，SBMA已成功地接枝到Nafion骨架上。此外，N/N-g-PSBMA膜显示出更高的离子选择性，库仑效率，和能量效率比纯的再铸Nafion（r-Nafion）膜VRB应用。在40-80 mA cm-2的电流密度下，N/N-g-PSBMA-20%膜的VRB的平均能量效率高达84.9%，比相同电流密度下r-Nafion膜的VRB高4.2%。100次循环充放电实验表明，N/N-g-PSBMA-20%膜的稳定性和容量保持能力均优于r-Nafion膜，证实了该膜在VRB应用中的巨大潜力。
In order to reduce the vanadium ion permeability while still keep its high stability, atom radical polymerization (ATRP) method was used to introduce zwitterionic sulfobetaine methacrylate (SBMA) onto the Nafion matrix in homogenous solution. The Nafion-grafted poly SBMA (N-g-PSBMA) solution was then used to blend with common Nafion solution to prepare Nafion/Nafion-g-PSBMA (N/N-g-PSBMA) amphoteric membranes by solution casting method. The grafted resins and membranes were characterized by attenuated total reflectance Fourier transform infrared spectra (ATR-FTIR), energy dispersive X-Ray spectroscopy (EDX), scanning electron microscopy (SEM), and water-contact angle analysis. The results prove that the SBMA has been successfully grafted onto the Nafion backbones. Furthermore, the N/N-g-PSBMA membranes have shown higher ion selectivity, coulombic efficiency, and energy efficiency than that of pure recast Nafion (r-Nafion) membrane for VRB application. At the current density of 40–80 mA cm−2, the average energy efficiency of the VRB with N/N-g-PSBMA-20% membrane has reached up to 84.9%, which is 4.2% higher than that of the VRB with the r-Nafion membrane at the same current densities. Moreover, the 100-cycles charge-discharge test proves that the N/N-g-PSBMA-20% membrane possesses higher stability and capacity retention ability than that of r-Nafion membrane, confirming the great potential of such membranes for VRB application.
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CexZr1-xO2电催化剂与碳氢化合物膜相结合实现高效、廉价的钒液流电池
影响因子：
15.1
作者：
Yu Lihong;Un Feng;Xiao Wangdong;Xu Ling;Xi Jingyu
通讯作者：
Xi Jingyu
DOI：
10.1002/pola.26949
发表时间：
2013-12
期刊：
Journal of Polymer Science Part A
影响因子：
--
作者：
Jie Yuan;Chuhong Yu;J. Peng;Yu Wang;Jun Ma;J. Qiu;Jiuqiang Li;Maolin Zhai
通讯作者：
Jie Yuan;Chuhong Yu;J. Peng;Yu Wang;Jun Ma;J. Qiu;Jiuqiang Li;Maolin Zhai
表面引发ATRP从聚砜膜上接枝两性离子，增强防污性能和生物相容性
影响因子：
9.5
作者：
Xiang, Tao;Qin, Hui;Sun, Shu-Dong;Zhao, Chang-Sheng
通讯作者：
Zhao, Chang-Sheng
影响因子：
5.8
作者：
K. Peng;Ke-Hsuan Wang;K. Hsu;Ying‐Ling Liu
通讯作者：
K. Peng;Ke-Hsuan Wang;K. Hsu;Ying‐Ling Liu
影响因子：
3.9
作者：
Lu, Shanfu;Wu, Chunxiao;Xiang, Yan
通讯作者：
Xiang, Yan