US 12,253,486 B2
Self-heating gas sensor, gas-sensitive material, preparation method for same, and applications thereof
Fei An, Shandong (CN); Bing Sun, Shandong (CN); Na Li, Shandong (CN); Lin Wang, Shandong (CN); Ning Shi, Shandong (CN); Wei Xu, Shandong (CN); Shucai Zhang, Shandong (CN); Haozhi Wang, Shandong (CN); Shiqiang Wang, Shandong (CN); Junjie Feng, Shandong (CN); and Chenyang Zhao, Shandong (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and SINOPEC RESEARCH INSTITUTE OF SAFETY ENGINEERING CO., LTD., Shandong (CN)
Appl. No. 17/906,232
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and SINOPEC RESEARCH INSTITUTE OF SAFETY ENGINEERING CO., LTD., Shandong (CN)
PCT Filed Jan. 26, 2021, PCT No. PCT/CN2021/073734
§ 371(c)(1), (2) Date Sep. 13, 2022,
PCT Pub. No. WO2021/203804, PCT Pub. Date Oct. 14, 2021.
Claims priority of application No. 202010280974.5 (CN), filed on Apr. 10, 2020.
Prior Publication US 2023/0124633 A1, Apr. 20, 2023
Int. Cl. G01N 27/12 (2006.01); G01N 33/00 (2006.01); B82Y 15/00 (2011.01); B82Y 40/00 (2011.01)
CPC G01N 27/127 (2013.01) [G01N 27/128 (2013.01); G01N 33/0027 (2013.01); B82Y 15/00 (2013.01); B82Y 40/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas-sensitive material, comprising 0.5-20 wt. % of a carbon material and 80-99.5 wt. % of metal oxides,
wherein the metal oxides comprises tungsten oxide and a dopant selected from tin oxide, iron oxide, titanium oxide, copper oxide, molybdenum oxide, zinc oxide, and mixtures thereof, and
wherein the tungsten oxide forms a plurality of nanowires on the carbon material, and the plurality of nanowires comprises tungsten oxide crystals doped with the dopant.