Correlation of Chemisorption and Electronic Effects for Metal Oxide Interfaces: Transducing Principles for Temperature Programmed Gas Microsensors

Technical Report · Thu Jan 03 00:00:00 EST 2002

OSTI ID:792795

Semancik, Steve; Cavicchi, R E; McAvoy, T J; Keast, C; Boosh, K; Boger, Z

The basis of our sensing approach involves using arrays of ''conductometric'' microsensor elements, which undergo measurable change in their electrical conductances as gases absorb, react, and desorb from their surfaces. Tunability was to be introduced by employing sensing films of varied composition within the arrays, and operating them at different fixed or time-varying temperatures. However, matching the appropriate sensing materials to the varied analytes and background atmospheres of interest, and then selecting operational temperatures which can provide the necessary analytical information, produces a challenging combinatorial problem.

• Research Organization: National Institute of Standards and Technology (US)
• Sponsoring Organization: (US)
• DOE Contract Number: AI07-98ER62709
• OSTI ID: 792795
• Report Number(s): DOE/ER/62709; EMSP 65421; TRN: US200206%%47
• Resource Relation: Other Information: PBD: 3 Jan 2002
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHEMISORPTION
GASES
OXIDES
GAS ANALYSIS
MEASURING INSTRUMENTS
ELECTRIC CONDUCTIVITY
HAZARDOUS MATERIALS
METAL OXIDE
GAS MICROSENSORS
CONDUCTOMETRIC
HAZARDOUS WASTE