• 专利标题:   Gas sensor used in system for detecting alkene e.g. ethylene, comprises reaction section comprising hydroxylamine salts and reacts with aldehyde and/or ketone, and response section including electrode supporting semiconductor material.
  • 专利号:   WO2021095440-A1, JP2021555954-X, EP4063318-A1, US2022404303-A1, JP7283671-B2
  • 发明人:   ISHIHARA S, NAKANISHI T, HONG D
  • 专利权人:   NAT INST MATERIALS SCI, NAT INST ADVANCED IND SCI TECHNOLOGY, NAT INST MATERIALS SCI, NAT INST ADVANCED IND SCI TECHNOLOGY, NAT INST MATERIALS SCI, NAT INST ADVANCED IND SCI TECHNOLOGY, NAT INST ADVANCED IND SCI TECHNOLOGY, NAT INST MATERIALS SCI
  • 国际专利分类:   B01J023/648, B82Y030/00, G01N027/12, C01B032/174, C01B032/159, B01J035/02, B01J023/22, B01J023/44
  • 专利详细信息:   WO2021095440-A1 20 May 2021 202148 Pages: 78 Japanese
  • 申请详细信息:   WO2021095440-A1 WOJP039138 16 Oct 2020
  • 优先权号:   JP206038

▎ 摘  要

NOVELTY - An alkene detection gas sensor (100) comprises a reaction section (110) comprising a palladium catalyst and oxidizes an alkene in a sample gas to convert the oxidized alkene into an aldehyde and/or a ketone, a reaction section (120) containing hydroxylamine salts and reacts with aldehyde and/or ketone converted in the reaction section (110) to generate an acid, and a response section (130) including an electrode supporting a semiconductor material whose electrical resistance value changes depending on the generated acid. The palladium catalyst, the hydroxylamine salts, and the semiconductor material are separated from each other. USE - Gas sensor used in system for detecting alkene e.g. ethylene in sample gas (all claimed), used as raw material for synthesizing chemical substances e.g. polyethylene and ethanol. ADVANTAGE - The gas sensor can stably detects the alkene in the sample gas. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an alkene detection system, which comprises the alkene detection gas sensor that detects an alkene in a sample gas and a detection unit detects a change in the electric resistance value from the alkene detection gas sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of the alkene detection gas sensor. Sensor (100) Reaction section (110,120) Response section (130)