燃料电池以其高转化率和无污染等特点,成为内燃机动力领域最具竞争力的取代能源。质子交换膜是其核心部件之一,在阻隔燃料同时为质子的迁移和输送提供通道。在高温和/或低湿度环境下,质子交换膜因剧烈失水而使其质子传导性能急剧下降,这极大地限制了燃料电池的大规模应用。
武培怡教授和汤蓓蓓副教授制备具有多种结构的无机纳米粒子并将其用于质子交换膜的改性研究,开发了系列具有高质子传导率、低甲醇渗透率的杂化质子交换膜。改性后的质子交换膜的质子传导率较改性前可提高2-10倍、选择性最高可有1-2个数量级提升。相关系列研究成果发表在材料领域权威期刊J. Mater. Chem. A发表。详见:
Kai Feng, Beibei Tang* and Peiyi Wu*, A “H2O donating/methanol accepting” platform for preparation of highly selective Nafion-based proton exchange membranes, J. Mater. Chem. A, 2015, 3, 18546-18556. 文章链接:http://pubs.rsc.org/en/content/articlehtml/2015/ta/c5ta04916d.
Kai Feng, Beibei Tang* and Peiyi Wu*, Ammonia-assisted Dehydrofluorination between PVDF and Nafion for Highly Selective and Low-cost Proton Exchange Membranes: A Possible Way to Further Strengthen the Commercialization of Nafion, J. Mater. Chem. A, 2015, 3, 12609-12615. 文章链接: http://pubs.rsc.org/en/content/articlehtml/2015/ta/c5ta02855h.
Wei Jia, Kai Feng, Beibei Tang* and Peiyi Wu*, β-Cyclodextrin modified silica nanoparticles for Nafion based proton exchange membranes with significantly enhanced transport properties, J. Mater. Chem. A, 2015, 3, 15607-15615. 文章链接:http://pubs.rsc.org/en/content/articlehtml/2015/ta/c5ta03381k.
Lijia Yang, Beibei Tang* and Peiyi Wu*, Metal–organic framework–graphene oxide composites: a facile method to highly improve the proton conductivity of PEMs operated under low humidity, J. Mater. Chem. A, 2015, 3, 15838-15842. 文章链接:http://pubs.rsc.org/en/content/articlehtml/2015/ta/c5ta03507d.