Patent ID: 9279782
Filing Date: 2016-03-08
CPC Classification: G01N

Claim Text:
1. A gas sensor, comprising: a layered structure comprising at least one ionic conductive film and at least one high gas-permeability interlayer film stacked in an alternative manner, wherein the thickness of the ionic conductive film is greater than or equivalent to that of the high gas-permeability interlayer film, the ionic conductive film is made of ionic material with its thickness in the range of 1 to 500 nanometers, and the ionic conductivity of the ionic conductive film is in the range of 0.02 to 1,000 S/cm; a first catalyst electrode and a second catalyst electrode disposed on the layered structure or at a lateral side of the layered structure with a gap therebetween, wherein a gas is ionized at the first catalyst electrode into gaseous ions, and the gaseous ions move to the second catalyst electrode via the high gas-permeability interlayer film of the layered structure such that the gaseous ions can be reduced by an reduction reaction at the second catalyst electrode; a conductivity promotion structure made of a material with electronic conductivity in the range of 10 a high dielectric constant layer sandwiched between the layered structure and the conductivity promotion structure; and a detecting unit electrically connected to the first catalyst electrode and the second catalyst electrode.