| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small-sized inexpensive hydrogen gas sensor capable of properly detecting a hydrogen gas even if an oxygen gas is absent and even not in a heating environment and having good hydrogen gas selectivity. <P>SOLUTION: The hydrogen gas sensor has a detection part formed with a catalyst layer 3 having a catalyst 3a such as platinum which is held by sputtering or the like on at least one side surface of a base material 2 as a solid polymer electrolyte membrane comprising a perfluoro polymer and the like and which has a catalytic function by making contact with a hydrogen gas, and the detection part is joined with air-permeable electrodes 4, thus constituting the sensor. <P>COPYRIGHT: (C)2010,JPO&INPIT |
