Abstract
Gas sensing or gas detection with high sensitivity and selectivity is of extreme importance for monitoring the change of concentration of gases in various environments. In the present work, the ethanol gas sensing material based on two-dimensional (2D) mesoporous Co3O4 nanosheet array in situ formed on three-dimensional (3D) N-doped carbon foam (NCF) was fabricated by hydrothermal and annealing processes. The 2D mesoporous Co3O4 nanosheets have an average thickness of ca.20nm and average pore diameter and specific surface area of about 2.3nm and 444.3m2g−1, respectively. Due to the unique nanostructure, the sensing material exhibited low operation temperature and high sensitivity for ethanol gas sensing. The optimum working temperature and the limit of detection (LOD) of the composite for ethanol gas detection can reach 100°C and 0.2ppm, respectively. The present 2D/3D metal oxide/carbon hybrid nanostructure shows a novel and promising platform for gas sensing applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
