Objective Thick film sensors have been realised starting from nanosized powders produced by laser pyrolysis and wet precipitation methods. Powders of pure and doped TiO2 have been synthesised by laser pyrolysis. Wet precipitation methods have been used for powder production. Sensors have been made from tin oxide and titania precursors. Good stability and sensitivity were reached. Pure and Nb or Ga doped TiO2 thick film sensors have been successfully prepared for CO and CH4 detection. Sensors have been prepared starting from TiO2-based powders. The performance, especially the stability, is promising. Thin film sensors with nanoscaled sensing layers have been realised based on silicon, sapphire and alumina substrates using physical vapour deposition and RGTO (rheotaxial growth and thermal oxidation). Thin film sensors based on silicon substrates have been designed, optimized and tested, resulting in an adequate sensitivity. Sensors based on Ti-WO3 (for NO2 detection) and on SnO2-Au and SnO2-Pd (for CO and CH4 detection respectively have also been prepared. Finally a new experimental set up for impedance spectroscopy was built. This technique allows a better understanding of the physical phenomena underlying the sensor operation, especially the materials inter-grain capacitance and inductance related aspects. Some of the developed sensors are performing significantly better than the present state of the art, resulting in important benefits for the industrial partners in the gas sensor market for combustion control in burners and vehicles engines.The European market will offer in future a large demand for products that can be applied to control different kind of combustion processes in automobiles, burners as well as emissions in environmental areas. Present gas sensors do not offer the stability, precision and endurance, which is needed in the challenging applications as burner control, diesel engine and catalyse control in automobiles.To respond to the market demand and to overtake the gap between the European and the American and Japanese know-how, a large effort has to be done to synthesise new reliable nanostructured materials capable to be operated in stable gas sensors for long term operation. Nanoscaled materials are indicated by more recent and advanced studies as a possible answer to this demands. The achievement of this know-how will enhance the competition of European industries, to compete with Japanese solid state gas sensor companies like NTK, GK and Figaro actually present on the market. The gases to be detected in this application are CO, NOx, CH4, CxHy.The aim of the project is to synthesise Sn2, TiO2 and mixed oxide materials as SnxMyOz and TixMyOz (M=Metal) with crystallite dimensions from 1 nm up to 500 nm to be used as highly stable gas sensors materials. The substances are supposed to show improved sinterability and stability as nanostructured gas sensor materials.Finally this project establishes co-operation on new material technologies between different European sensors enterprises. The industrial scale production is foreseen, about, three years after the project ended. Fields of science engineering and technologymaterials engineeringcoating and filmsengineering and technologyelectrical engineering, electronic engineering, information engineeringelectronic engineeringsensorsengineering and technologynanotechnologynano-materialsnatural scienceschemical sciencesinorganic chemistrymetalloidsnatural sciencesphysical sciencesopticslaser physics Programme(s) FP3-BRITE/EURAM 2 - Specific programme (EEC) of research and technological development in the field of industrial and materials technologies, 1990-1994 Topic(s) 1.4.3 - Electrical and ionic conducting materials Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator Centro Informazioni Studi ed Esperienze SpA Address Via reggio emilia 39 20090 Segrate Italy See on map EU contribution € 0,00 Participants (5) Sort alphabetically Sort by EU Contribution Expand all Collapse all Consorzio Interuniversitario Nazionale perlla Fisica della Materia Italy EU contribution € 0,00 Address Via dell'acciaio 139 16152 Genova See on map ROBERT BOSCH GmbH Germany EU contribution € 0,00 Address 7000 Stuttgart See on map SAGEM SA France EU contribution € 0,00 Address 27 rue leblanc le ponant de paris 75512 Paris See on map THE UNIVERSITY OF TUEBINGEN Germany EU contribution € 0,00 Address Auf der morgenstelle 8 72076 Tuebingen See on map UNIV BARCELONA Spain EU contribution € 0,00 Address Avda diagonal 645-647 08028 Barcelona See on map
