Nanomaterial-based heterostructures: synthesis and their gas sensing properties

• Grant number: 16/23474-6
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: May 01, 2017
• End date: April 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Physics - Condensed Matter Physics
• Principal Investigator: Osvaldo Novais de Oliveira Junior
• Grantee: Niravkumar Jitendrabhai Joshi
• Supervisor: Liwei Lin
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Institution abroad: University of California, Berkeley (UC Berkeley), United States
• Associated to the scholarship: 14/23546-1 - Enhanced sensitive and selective sensors made with p-NiO nanowire/n-ZnO Nanowire heterostructures, BP.PD

Abstract

Detection of harmful gases is an important requirement for the control of atmospheric and environmental pollution, and vehicle emissions. Such detection has been mostly done with gas sensors made with nanostructured metal oxides, whose optimized operation temperature is high (200~350ºC). Another drawback of these gas sensors is lack of selectivity. The design and fabrication of room temperature operating, sensitive and selective gas sensors has therefore been pursued, which may include heterostructures of ZnO-NiO. In this project, we propose the fabrication of similar heterostructures via a facile, eco-friendly synthesis approach. In addition to characterizing these nanomaterials with X-ray diffraction, scanning electron microscopy and X-ray photoelectron spectroscopy (XPS), we shall perform gas sensing measurements using oxidizing and reducing gases (H2S, NH3, CO, Cl2 and NO2). Device fabrication will be based on microelectromechanical systems (MEMS), taking full advantage of the expertise in the group of Prof. Liwei Lin, University of California, Berkeley, USA. (AU)

Scientific publications

(11)

(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)

VASUDEVAN, MUGASHINI; TAI, MELVIN J. Y.; PERUMAL, VEERADASAN; GOPINATH, SUBASH C. B.; MURTHE, SATISVAR SUNDERA; OVINIS, MARK; MOHAMED, NORANI MUTI; JOSHI, NIRAV. Highly sensitive and selective acute myocardial infarction detection using aptamer-tethered MoS2 nanoflower and screen-printed electrodes. Biotechnology and Applied Biochemistry, NOV 2020. (14/23546-1, 16/23474-6)

MALIK, RITU; JOSHI, NIRAV; TOMER, VIJAY K.. Functional graphitic carbon (IV) nitride: A versatile sensing material. Coordination Chemistry Reviews, v. 466, p. 43-pg., 2022-09-01. (14/23546-1, 16/23474-6)

WU, YICHUAN; JOSHI, NIRAV; ZHAO, SHILONG; LONG, HU; ZHOU, LIUJIANG; MA, GE; PENG, BEI; OLIVEIRA JR, OSVALDO N.; ZETTL, ALEX; LIN, LIWEI. NO2 gas sensors based on CVD tungsten diselenide monolayer. Applied Surface Science, v. 529, NOV 1 2020. (16/23474-6, 14/23546-1)

JOSHI, NIRAV; LONG, HU; NAIK, PRANAV; KUMAR, ARVIND; MASTELARO, VALMOR R.; OLIVEIRA, OSVALDO N.; ZETTL, ALEX; LIN, LIWEI. Zinc stannate microcubes with an integrated microheater for low-temperature NO2 detection. NEW JOURNAL OF CHEMISTRY, v. 46, n. 37, p. 10-pg., 2022-08-23. (14/23546-1, 13/07296-2, 16/23474-6, 18/22214-6)

MALIK, RITU; TOMER, VIJAY K.; JOSHI, NIRAV; DANKWORT, TORBEN; LIN, LIWEI; KIENLE, LORENZ. Au-TiO2-Loaded Cubic g-C3N4 Nanohybrids for Photocatalytic and Volatile Organic Amine Sensing Applications. ACS APPLIED MATERIALS & INTERFACES, v. 10, n. 40, p. 34087-34097, OCT 10 2018. (16/23474-6)

WU, YICHUAN; HUANG, QIYANG; NIE, JING; LIANG, JIAMING; JOSHI, NIRAV; HAYASAKA, TAKESHI; ZHAO, SHILONG; ZHANG, MIN; WANG, XIAOHAO; LIN, LIWEI. All-Carbon Based Flexible Humidity Sensor. Journal of Nanoscience and Nanotechnology, v. 19, n. 8, p. 5310-5316, AUG 2019. (16/23474-6, 14/23546-1)

SUBRAMANI, INDRA GANDI; PERUMAL, VEERADASAN; GOPINATH, SUBASH C. B.; MOHAMED, NORANI MUTI; JOSHI, NIRAV; OVINIS, MARK; LI SZE, LIM. 3D nanoporous hybrid nanoflower for enhanced non-faradaic redox-free electrochemical impedimetric biodetermination. Journal of the Taiwan Institute of Chemical Engineers, v. 116, p. 26-35, NOV 2020. (14/23546-1, 16/23474-6)

JOSHI, NIRAV; DA SILVA, LUIS F.; SHIMIZU, FLAVIO M.; MASTELARO, VALMOR R.; M'PEKO, JEAN-CLAUDE; LIN, LIWEI; OLIVEIRA, JR., OSVALDO N.. UV-assisted chemiresistors made with gold-modified ZnO nanorods to detect ozone gas at room temperature. Microchimica Acta, v. 186, n. 7, JUL 2019. (13/14262-7, 16/23474-6, 14/23546-1, 12/15543-7, 13/07296-2, 17/12437-5)

VASUDEVAN, MUGASHINI; TAI, MELVIN J. Y.; PERUMAL, VEERADASAN; GOPINATH, SUBASH C. B.; MURTHE, SATISVAR SUNDERA; OVINIS, MARK; MOHAMED, NORANI MUTI; JOSHI, NIRAV. Highly sensitive and selective acute myocardial infarction detection using aptamer-tethered MoS2 nanoflower and screen-printed electrodes. Biotechnology and Applied Biochemistry, v. 68, n. 6, p. 1386-1395, DEC 2021. (16/23474-6, 14/23546-1)

JOSHI, NIRAV; HAYASAKA, TAKESHI; LIU, YUMENG; LIU, HUILIANG; OLIVEIRA, JR., OSVALDO N.; LIN, LIWEI. A review on chemiresistive room temperature gas sensors based on metal oxide nanostructures, graphene and 2D transition metal dichalcogenides. Microchimica Acta, v. 185, n. 4, APR 2018. (16/23474-6, 14/23546-1)

JOSHI, NIRAV; DA SILVA, LUIS F.; JADHAV, HARSHARAJ S.; SHIMIZU, FLAVIO M.; SUMAN, PEDRO H.; M'PEKO, JEAN-CLAUDE; ORLANDI, MARCELO ORNAGHI; SEO, JEONG GIL; MASTELARO, VALMOR R.; OLIVEIRA, JR., OSVALDO N.. Yolk-shelled ZnCo2O4 microspheres: Surface properties and gas sensing application. SENSORS AND ACTUATORS B-CHEMICAL, v. 257, p. 906-915, MAR 2018. (13/14262-7, 16/23474-6, 14/23546-1, 12/15543-7, 13/07296-2)