High performance gas diffusion electrode of polymer electrolyte membrane fuel cells prepared by plasma polymerization

等离子体聚合制备聚合物电解质膜燃料电池高性能气体扩散电极

• 批准号: 08555215
• 负责人: OGUMI Zempachi
• 金额: $ 9.28万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555215/
• 关键词: plasma polymerization; fuel cell; ion exchange membrane; gas diffusion electrode; fluorine; ガス電極; メチルベンゼンスルホネート; ジフルオロエテン; スルホン酸基

Polymer electrolyte membrane fuel cells (PEMFC) have attracted much attention for use of batteries of electric vehicles. In PEMFC, gas diffusion electrodes have been used, and it is necessary to enhance the contact areas between electrode and electrolyte for the improvement of performance of PEMFC.In this work, we have aimed the development of high performance gas diffusion electrodes by plasma polymerization. Followings are the results of this work :1) Thin cation exchanger films fixed with sulfonic acid groups were prepared by plasma polymerization followed by hydrolysis of sulfonyl halide groups using benzenesulfonyl fluoride and benzenesulfonyl chloride, as starting material. Plasma polymer that formed at 3.5 W by using benzenesulfonyl fluoride after hydrolysis exhibits a cation-exchange capacity of 1.3 meq g^<-1>, which is comparable to those of commercially available cation exchange membranes.2) Perfluorinated polymer electrolytes have been prepared by using trifluoromethane sulfonic acid as ion exchange resources and octafluorocyclobutane as polymer bone. The resultant polymer electrolyte contains much fluorine atoms, and the ionic conductivity was determined to be in the order of 10^<-5> S / cm.3) By introducing Ar gas and water, the ionic conductivity of the resultant plasma polymer electrolytes was enhanced to be in the order of 10 -4 S / cm. This is probably due to the dilution of fluorine radicals prepared in plasma.

聚合物电解质膜燃料电池（PEMFC）作为电动汽车电池的应用引起了广泛关注。在质子交换膜燃料电池（PEMFC）中，气体扩散电极已被广泛应用，为了提高PEMFC的性能，必须增大电极与电解质的接触面积。1）以苯磺酰氟和苯磺酰氯为原料，通过等离子体聚合和磺酰卤水解制备了固定有磺酸基的阳离子交换膜。通过在水解后使用苯磺酰氟在3.5W下形成的等离子体聚合物表现出1.3meq g^的阳离子交换容量<-1>，这与市售阳离子交换膜的阳离子交换容量相当。2）已经通过使用三氟甲磺酸作为离子交换源和八氟环丁烷作为聚合物骨架制备了全氟聚合物电解质。3<-5>）通过引入Ar气和水，得到的等离子体聚合物电解质的离子电导率提高到10 - 4S/ cm量级。这可能是由于在等离子体中制备的氟自由基的稀释。

项目成果

Akimasa Tasaka, Akiko Komura, Yoshiharu Uchimoto, Minoru Inaba, and Zempachi Ogumi: "Preparation of Functionally Gradient Fluorocarbon Polymer Films by Plasma Polymerization of NF_3 and Propylene" J.Polym.Sci, , Part A : Polym.Chem.34. 193-198 (1996)

Akimasa Tasaka、Akiko Komura、Yoshiharu Uchimoto、Minoru Inaba 和 Zempachi Ogumi：“通过 NF_3 和丙烯的等离子体聚合制备功能梯度氟碳聚合物薄膜”J.Polym.Sci，A 部分：Polym.Chem.34。

Minoru Inaba et al.: "Hydrogen Oxidation on Partially Immersed Nafion^<【○!R】>-Coated Electrodes" J.Electroanal.Chem.417. 105-111 (1996)

Minoru Inaba 等人：“部分浸没的 Nafion^<【○！R】> 涂层电极上的氢氧化”J.Electroanal.Chem.417（1996）。

Jun Maruyama, Minoru Inaba, Katsumi Katakura, Zempachi Ogumi, and Zen-ichiro Takehara: "Influence of NafionR Film on the Kinetics of Anodic Hydrogen Oxidation" J.Electroanal.Chem.447(1/2). 201-209 (1998)

Jun Maruyama、Minoru Inaba、Katsumi Katakura、Zempachi Ogumi 和 Zen-ichiro Takehara：“NafionR 薄膜对阳极氢氧化动力学的影响”J.Electroanal.Chem.447(1/2)。

Jun Maruyama et al.: "Influence of Nafion^<【○!R】> Film on the Kinetics of Anodic Hydrogen Oxidation" J.Electroanal.Chem.447. 201-209 (1998)

Jun Maruyama 等人：“Nafion^<【○！R】> 薄膜对阳极氢氧化动力学的影响”J.Electroanal.Chem.447（1998）。

Jun Maruyama, Minoru Inaba, and Zempachi Ogumi: "Rotating Ring-Disk Electrode Study on the Cathodic Oxygen Reduction at Nafion^<<encircledR>>-coated Gold Electrode" J.Electroanal.Chem.458(1/2). 175-182 (1998)

Jun Maruyama、Minoru Inaba 和 Zempachi Ogumi：“关于 Nafion^<<encircledR>> 涂层金电极阴极氧还原的旋转环盘电极研究”J.Electroanal.Chem.458(1/2)。