Porous MoO3/SnO2 Nanoflakes with n–n Junctions for Sensing H2S
Source abstract
Abstract
Currently, the detection of hydrogen sulfide is important due to its negative effect on environment and human health. In this paper, the porous MoO3/SnO2 nanoflakes (NFs) with n–n junctions, composed of the interconnected nanoparticles with diameter of less than 10 nm, were successfully fabricated via a facile method. In comparison to SnO2 NFs, the gas sensing properties of the porous MoO3/SnO2 NFs showed enhanced H2S sensing performance, including higher response values, lower working temperature, and relatively fast response and recovery rates. The improved H2S sensing property is attributed to existence of n–n junctions at the interface between MoO3 and SnO2, larger surface area and bigger pore volume. The strategy presented in this work opens a new way for preparation of other types of porous metal oxide semiconductors with heterostructures for high-performance gas sensor.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Transition Metal Oxide Nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of In-Fiber Integrated Optics, Ministry of Education and College of Science, Harbin Engineering University, Harbin 150001, China
College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education and School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China
Funding
National Natural Science Foundation of China · Ministry of Education of the People's Republic of China · Natural Science Foundation of Heilongjiang Province · Key Laboratory of Photonic and Electric Bandgap Materials, Harbin Normal University
References (57)
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