Synthesis and characterization of nanostructured CuAlO2 compound: a systematic study about the dependence of the sensitivity to different types of gases as a function of the morphology

• Grant number: 13/19049-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: February 01, 2014
• End date: May 31, 2016
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Valmor Roberto Mastelaro
• Grantee: Thirumalairajan Subramaniam
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 13/07296-2 - CDMF - Center for the Development of Functional Materials, AP.CEPID

Abstract

This research project proposes to develop a new dimension in the relationship between the morphology and physical properties and possible applications related to the different morphologies of nanostructured CuAlO2 phase. We expect through this study clearly describe the process of formation of different morphologies of nanostructured CuAlO2 phase and thus provide the basic knowledge on methods to control the morphology of these nanostructures. Since the control over the morphology was reached, different physical properties depending on the morphology may be analyzed and thus verify its application in the detection of different types of toxic gases. Finally, we believe that the transparent CuAlO2 nanostructured semiconductor material could be considered a promising material with great potential for applications in many fields of high technological.

Scientific publications

(7)

(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)

GIRIJA, K.; THIRUMALAIRAJAN, S.; MASTELARO, VALMOR R.; MANGALARAJ, D.. Catalyst free vapor-solid deposition of morphologically different beta-Ga2O3 nanostructure thin films for selective CO gas sensors at low temperature. ANALYTICAL METHODS, v. 8, n. 15, p. 3224-3235, 2016. (13/19049-0)

THIRUMALAIRAJAN, S.; MASTELARO, VALMOR R.. A novel organic pollutants gas sensing material p-type CuAlO2 microsphere constituted of nanoparticles for environmental remediation. SENSORS AND ACTUATORS B-CHEMICAL, v. 223, p. 138-148, FEB 2016. (13/19049-0, 13/07296-2)

THIRUMALAIRAJAN, S.; GIRIJA, K.; MASTELARO, VALMOR R.; PONPANDIAN, N.. Investigation on magnetic and electric properties of morphologically different perovskite LaFeO3 nanostructures. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, v. 26, n. 11, p. 8652-8662, NOV 2015. (13/19049-0)

THIRUMALAIRAJAN, S.; GIRIJA, K.; MASTELARO, VALMOR R.; PONPANDIAN, N.. Surface Morphology-Dependent Room-Temperature LaFeO3 Nanostructure Thin Films as Selective NO2 Gas Sensor Prepared by Radio Frequency Magnetron Sputtering. ACS APPLIED MATERIALS & INTERFACES, v. 6, n. 16, p. 13917-13927, AUG 27 2014. (13/19049-0)

THIRUMALAIRAJAN, S.; MASTELARO, VALMOR R.; ESCANHOELA, JR., CARLOS A.. In-Depth Understanding of the Relation between CuAlO2 Particle Size and Morphology for Ozone Gas Sensor Detection at a Nanoscale Level. ACS APPLIED MATERIALS & INTERFACES, v. 6, n. 23, p. 21739-21749, DEC 20 2014. (10/20582-6, 13/19049-0)

THIRUMALAIRAJAN, SUBRAMANIAM; GIRIJA, KESAVAN; MASTELARO, VALMOR ROBERTO; PONPANDIAN, NAGAMONY. Photocatalytic degradation of organic dyes under visible light irradiation by floral-like LaFeO3 nanostructures comprised of nanosheet petals. NEW JOURNAL OF CHEMISTRY, v. 38, n. 11, p. 5480-5490, 2014. (13/19049-0)

THIRUMALAIRAJAN, S.; GIRIJA, K.; MASTELARO, VALMOR R.; GANESH, V.; PONPANDIAN, N.. Detection of the neurotransmitter dopamine by a glassy carbon electrode modified with self-assembled perovskite LaFeO3 microspheres made up of nanospheres. RSC ADVANCES, v. 4, n. 49, p. 25957-25962, 2014. (13/19049-0)