Solid-state NOx sensor combined with NASICON and Pb–Ru-based pyrochlore-type oxide electrode

Electro-catalytically Active, High Surface Area Cathodes for Low Temperature SOFCs

“…Ruthenium based pyrochlores have been investigated because of their high metallic or semiconducting electrical conductivity 19,20 that allows the use of these oxides in catalysis 21 and for electrochemical sensors 22 . .…”

Performance study of amperometric sensor for detecting NO2 at ppb concentration level

“…Over the past decade, nitrogen oxide, primarily consisting of nitric oxide and nitrogen dioxide [1] sensors have been widely studied to measure the concentration of NO x in air (21 vol% O 2 ) [2], or in automobile exhaust gas with only 5 vol% O 2 [3], because NO x gasses are the main atmospheric pollutants that generate acid rain and photochemical smog [4]. In order to monitor the exact amount of NO x and develop a compact sensor structure, semiconductor gas sensors [5], based on materials such as zinc oxide (ZnO) [6], ortin oxide (SnO 2 ) [7], in addition to solid electrolyte sensors based on yttria-stabilized zirconia (YSZ) [8] and sodium (Na) super ionic conductor (NASICON) [9,10], have all been investigated in depth within laboratory settings.…”

Design, fabrication, and testing of MEMS-based miniaturized potentiometric nitric oxide sensors

“…Several technologies are being developed [12][13][14][15][16]. A variety of solid-state electrochemical sensors for NO has been demonstrated previously [17][18][19][20], and strategies to improve their performance have been investigated [17,21,22]. Solid-state potentiometric electrochemical sensors have the potential to detect NO over a wide range of concentrations.…”