| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas sensor, having a large calorific power in a unit area and capable of acquiring a sufficient electromotive force, even when it is made compact in size. SOLUTION: In the gas sensor, heat generated by the reaction of a gas to be detected at the surface of a catalyst carried by a catalyst carrying layer is converted into a voltage by a thermoelectric conversion material, to sense the presence of the gas. The catalyst-carrying layer is formed in a porous shape. The porous shape is formed through the use of a self-organizing phenomenon etc. such as anodic oxidation of aluminum. A catalyst material may be carried by a carrier formed into a porous shape, or the catalyst material itself may by provided with a porous structure, by using a body having a porous shape as a mold. COPYRIGHT: (C)2005,JPO&NCIPI
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