Performance dependence of swelling-filling treated Nafion membrane on nano-structure of macromolecular filler
Performance dependence of swelling-filling treated Nafion membrane on nano-structure of macromolecular filler
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溶胀填充处理的 Nafion 膜的性能对大分子填料纳米结构的依赖性
DOI：
10.1016/j.memsci.2017.04.016
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发表时间：
2017
影响因子：
9.5
通讯作者：
Cheng Hansong
中科院分区：
文献类型：
--
作者：
Xu Guoxiao;Li Jing;Ma Liying;Xiong Jie;Mansoor Majid;Cai Weiwei;Cheng Hansong
本论文提出了一种通过插入质子导电高分子纳米结构对Nafion膜进行改性的新方法。该过程被称为溶胀-填充（SF）策略，用于提高直接甲醇燃料电池（DMFC）应用中的Nafion膜性能。然而，SF处理的Nafion膜得到了一个问题，甲醇渗透，因为微孔开发的改性膜。在这项工作中，SF填料的纳米结构通过分子结构设计来调整SF处理的Nafion膜的微孔结构。纳米梭状SF填料对Nafion膜的阻醇性能和质子传导性能有双重提高。选择性提高近一倍，使直接甲醇燃料电池的输出功率得到显著提高，在直接甲醇燃料电池中显示出明显的应用潜力。
A novel method of Nafion membrane modification by inserting proton conductive macromolecular nanostructures was previously developed. This process was referred as swelling-filling (SF) strategy for enhancing the Nafion membrane performance for direct methanol fuel cell (DMFC) application. However, the SF treated Nafion membrane got an issue of methanol permeation because of micro-pores developed in the modified membrane. In this effort, nano-structure of the SF filler was tuned via molecular structure design to adjust the micro-porous structure of the SF treated Nafion membrane. Methanol-permeation resistivity and proton conductivity of the Nafion membrane were dually boosted by the nano-shuttle SF filler. The nearly doubled selectivity leaded to a remarkable improvement on power output of DMFC and revealed pronounced application potential in DMFC.