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Advances in nanostructured semiconducting oxides for gas sensors

Grant number: 10/51959-8
Support type:Regular Research Grants
Duration: January 01, 2011 - December 31, 2012
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Cooperation agreement: MIT
Principal researcher:José Arana Varela
Grantee:José Arana Varela
Principal researcher abroad: Harry L. Turner
Institution abroad: Massachusetts Institute of Technology (MIT), United States
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil


This proposal aims to exchange experience in research on nanostructured semiconducting oxides for gas sensors between our group at the University of São Paulo State and the group of Prof. Harry Tuller of MIT. One of the research lines of our main project, which has been financed by FAPESP/CNPq program of the INCT named National Institute for Science and Technology on Materials for Nanotecnology, is the development and characterization on nanostructure semiconducting oxides. This research line is one in which we have achieved success in obtaining new knowledge which has been recently published. The main objective of this research line is the synthesis of semiconducting oxides with morphology, particle size and chemical composition control. The group of Harry Tuller is one of more experienced on electroceramic and specially on the gas sensors properties and devices. We hope that this collaboration with the Prof. Tuller's group will enhance substantially the understanding of our group on characterization and sensing properties of synthesized semiconducting oxide thin films, as well as the preparation of sensors devices. In the same way we expected to transfer to Prof. Tuller's group our experience on chemical based preparation of thin films. It must also provide excellent scientific education, renewing links between faculty members and students, so the students can share a great atmosphere of international scientific competence. For this we have planed 8 exchanges between both groups, being 4 for each size, of faculties, postdoctoral fellows and graduate students. These missions, with duration between 15 to 30 days, aim to exchange experience, get new knowledge, and for preparing new proposals to support a more extended collaboration be tween both groups. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
SUMAN, P. H.; FELIX, A. A.; TULLER, H. L.; VARELA, J. A.; ORLANDI, M. O. Comparative gas sensor response of SnO2, SnO and Sn3O4 nanobelts to NO2 and potential interferents. SENSORS AND ACTUATORS B-CHEMICAL, v. 208, p. 122-127, MAR 1 2015. Web of Science Citations: 38.

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