Affiliation:
1. Department of Physics, Tianshui Normal University, Tianshui, Gansu 741001, China
Abstract
The room temperature gas sensors have always been an important research direction of the gas sensor, and the room temperature gas sensors without the assistance of the light is more valuable. The SnO2 nanoparticles were synthesized by hydrothermal method, which showed good formaldehyde sensitivity, had the advantages of low test temperature, only [Formula: see text]C, good formaldehyde selectivity, and especially the good response to formaldehyde at room temperature. The nanostructure and gas-sensing properties were characterized by scanning electron microscopy, EDS mapping, nitrogen physical adsorption, and X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy, and WS-60B gas-sensing measurement system. Compared with the reported research results, we carefully discuss the physical mechanism of the SnO2 formaldehyde sensor with low operating temperature and good formaldehyde selectivity in this paper.
Funder
Department of Education of Gansu Province
Education Project of Open Competition for the Best Candidates
Industrial Support Project
National Innovation and Entrepreneurship Training Program for College Students
Tianshui Normal University “QinglanTalents” Project, Long Yuan Youth Innovate and Entrepreneurship Talents Project
Innovation Fund Project of Tianshui Normal University
Foundation of Natural Science Foundation of Gansu Province
Innovate Foundation of University of Gansu Province
Science and Technology Supporting Program Project of Tianshui City
National Natural Science Foundations of China
Advanced pre-research project of Tianshui Normal University
Demonstration course of curriculum ideological and political education construction Innovation Project of Tianshui Normal University
Education Science “14th Five-Year Plan” Project of Gansu Province
Publisher
World Scientific Pub Co Pte Ltd
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics