Catalyst layer for anion-exchange membrane fuel cells, membrane-electrode assembly, anion-exchange membrane fuel cell using membrane-electrode assembly, and method for operating anion-exchange membrane fuel cell
An anion exchange membrane, electrode assembly technology, applied in anion exchange, fuel cell additives, fuel cells, etc., can solve the problems of large-scale system and high price
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment
[0141] Hereinafter, although an Example and a comparative example are given and this invention is demonstrated, this invention is not limited to these Examples. In addition, the characteristic of the ion conductivity imparting agent shown in an Example and a comparative example is the value measured by the following method.
[0142] (1) Anion exchange capacity
[0143] A solution (concentration: 5.0% by mass, solution amount: 2.5 g, bicarbonate ion type) in which the ion conductivity-imparting agent was dissolved was cast on a Teflon (registered trademark) petri dish to prepare a cast film. After washing the dialysis tube (visking tube, purchased from AS ONE Co., Ltd.) with ion-exchanged water, it was dried under reduced pressure at 50° C. for 3 hours, and the mass (D v (g)). The prepared cast film and ion-exchanged water were placed in this dialysis tube, and both ends were tied. The operation of immersing the tube in a 0.5 mol / L-HCl aqueous solution (50 mL) was repeated t...
manufacture example 1
[0164] Commercially available polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer (SEBS) (weight average molecular weight 70,000, styrene content 42% by mass) 40g (containing benzene ring 161mmol) was dissolved in In a mixed solvent containing 520 g of chloroform and 760 g (9.4 mol) of chloromethyl methyl ether. Furthermore, a solution in which 35 g (134 mmol) of tin (IV) chloride was dissolved in 83 g of chloroform was added, and reacted at 35 to 40° C. for 2 hours in a nitrogen atmosphere, thereby introducing a chloromethyl group into the benzene ring of SEBS. Then, 200 ml of a 1:1 mixed solution of 1,4-dioxane and water was thrown into the reaction solution to stop the reaction. Next, this reaction solution was poured into 6000 ml of methanol aqueous solution to precipitate a resin. The precipitated resin was washed several times with methanol, and then dried at 25° C. for 15 hours or more to obtain 45.5 g of SEBS having a chloromethyl group introduced into ...
manufacture example 2
[0180] In addition to changing SEBS to SEBS with a weight-average molecular weight of 50,000 and a styrene content of 30% by mass in the production of the ion conductivity imparting agent in Production Example 1, and changing the chloroform used in the chloromethylation reaction to 768 g, changing the chlorine Methyl methyl ether was changed into 548g, tin chloride (IV) was changed into 25g, and the mixed solvent used in the dissolution of the anion exchange resin was changed into other than the mixed solvent of 1000g tetrahydrofuran and 1000g 1-propanol. The ion conductivity imparting agent was obtained by the same operation. Table 1 shows the physical property values of this ion conductivity imparting agent.
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle diameter | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| pore size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More