Amino acid immobilized SiO2 nanofiber composite proton exchange membrane

The invention discloses an amino acid immobilized SiO2 nanofiber composite proton exchange membrane and a preparing method thereof. The proton exchange membrane is prepared by using amino acid immobilized SiO2 nanofiber as a fiber skeleton and adopting perfluorosulfonic resin as a substrate. The SiO2 nanofiber is prepared through an electrospinning technique, and immobilized amino acid comprises cysteine, serine, lysine and glycine. The prepared proton exchange membrane has good water retention performance, dimensional stability and proton conduction performance. 本发明公开了种氨基酸固载SiO纳米纤维复合质子交换膜及其制备方法，质子交换膜是以氨基酸固载SiO纳米纤维作为纤维骨架，以全氟磺酸树脂作为基质制得的。所述的SiO纳米纤维是通过静电纺丝技术制得的，所述的固载氨基酸种类包括半胱氨酸、丝氨酸、赖氨酸、甘氨酸。制得质子交换膜具有良好的保水性能、尺寸稳定性以及质子传导性能。