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Title: Low-temperature capacitive sensor based on perovskite oxides

Energy, environmental and social issues drive towards the green political economy and the development of advanced technologies, promoting renewable energy sources, improving energy conversion efficiency and reducing exhaust gas emissions. The development of sustainable technologies requires strategic research in the area of gas sensors for monitoring air quality, controlling gas emissions and optimizing combustion processes. Solid state sensors are the most attractive one because of their simplicity in function, small size and low cost. The aim of this work is to synthetize and characterize strontium titanate and test its sensing performance. The prepared sensor device shows significant sensitivity and response rate at room-temperature. However, because of the low recovery rate, the regeneration of the sensor has to be made at high temperature for promoting the decomposition of the carbonates formed on the perovkite surface.
Authors:
; ;  [1] ; ;  [2]
  1. ENEA-Casaccia R.C. via Anguillarese 301, 00123 Rome (Italy)
  2. Department of Basic and Applied Sciences for Engineering, La Sapienza University, Via A. Scarpa 14/16, 00161 Rome (Italy)
Publication Date:
OSTI Identifier:
22490679
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1667; Journal Issue: 1; Conference: Nanoforum 2014, Rome (Italy), 22-25 Sep 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AIR QUALITY; CARBONATES; DECOMPOSITION; EFFICIENCY; ENERGY CONVERSION; MONITORING; OPTIMIZATION; OXIDES; PERFORMANCE; PEROVSKITE; REGENERATION; RENEWABLE ENERGY SOURCES; SENSITIVITY; SENSORS; SOLIDS; STRONTIUM TITANATES; SURFACES