Fuel reforming apparatus and manufacturing method thereof

A manufacturing method of a fuel reforming apparatus, comprising steps of:

• preparing a first substrate made of a first metal;
• forming a first channel on an upper surface of the first substrate;
• oxidizing an inner surface of the first channel, the oxidized inner surface of the first channel being a first catalyst containing layer;
• forming a first catalyst layer on the oxidized inner surface of the first channel;
• preparing a second substrate made of a second metal;
• forming a second channel on an upper surface of the second substrate;
• oxidizing an inner surface of the second channel, the oxidized inner surface of the second channel being a second catalyst containing layer;
• forming a second catalyst layer on the oxidized inner surface of the second channel;
• placing the second substrate on the upper surface of the first substrate in a manner that a lower surface of the second substrate contacts the upper surface of the first substrate;
• and
• placing a cover plate on the upper surface of the second substrate.

A manufacturing method of a fuel reforming apparatus, comprising steps of:

• preparing a first substrate made of a first metal;
• forming a first channel on an upper surface of the first substrate;
• preparing a second substrate made of a second metal;
• forming a second channel on an upper surface of the second substrate;
• placing the second substrate on the upper surface of the first substrate in a manner that a lower surface of the second substrate contacts the upper surface of the first substrate;
• placing a cover plate on the upper surface of the second substrate;
• oxidizing inner surfaces of the first channel and the second channel after both of the step of placing the second substrate and the step of placing a cover plate, the oxidized inner surfaces of the first channel and the second channel being a catalyst containing layer;
• and
• forming a catalyst layer on the oxidized inner surfaces of the first channel and the second channel.

A fuel reforming apparatus comprising:

• a first reaction substrate made of a first metal;
• a first channel formed on an upper surface of the first reaction substrate;
• a first catalyst containing layer formed on the first channel, the first catalyst containing layer including an oxidized layer of the first metal, the first catalyst containing layer being made by oxidizing the first channel;
• a first catalyst layer formed on the first catalyst containing layer;
• a second reaction substrate made of a second metal and contacting the upper surface of the first reaction substrate;
• a second channel formed on an upper surface of the second reaction substrate;
• a second catalyst containing layer formed on the second channel, the second catalyst containing layer including a oxidized layer of the second metal, the second catalyst containing layer being made by oxidizing the second channel;
• a second catalyst layer formed on the second catalyst containing layer;
• and
• a cover plate contacting the upper surface of the second reaction substrate.