| 摘要 |
PROBLEM TO BE SOLVED: To enhance reacting capability by enlarging a contact area with a catalyst without lowering the performance as an electrolyte film. SOLUTION: A heavy metal substitutes for a proton by dipping a strong acid ion exchange membrane in an aqueous solution of weak acid salt of heavy metals such as lead, zinc and the like (process S10), a pattern by a hollow having a designated shape is formed by radiating radioactive rays such as an electron beam onto the surface of the ion exchange membrane the proton of which the heavy metal substitutes for (process S12), and the proton then substitutes for the heavy metal by dipping the ion exchange membrane the proton of which the heavy metal substitutes for in diluted sulfuric acid (process S14), to complete an electrolyte film. If radioactive ray is radiated onto a strong acid cation exchange membrane, decomposition of the ion exchange membrane is normally accelerated, however, the decomposition can be prevented by a heavy metal substituting for a proton. As a result, an electrolyte film provided with a hollow having a designated shape can be manufactured without causing deterioration and destruction of an ion exchange membrane. |
