Abstract
In this paper, gas sensing characteristics of sulfur-doped graphene oxide (S-GO) are firstly presented. The results of the sensing test revealed that, at room temperature (20 °C), S-GO has the optimal sensitivity to NH3. The S-GO gas sensor has a relatively short response and recovery time for the NH3 detection. Further, the sensing limit of ammonia at room temperature is 0.5 ppm. Theoretical models of graphene and S-doped graphene are established, and electrical properties of the graphene and S-doped graphene are calculated. The enhanced sensing performance was ascribed to the electrical properties’ improvement after the graphene was S-doped.
Funder
National Natural Science Foundation of China
111 Project
Fundamental Research Funds for the Central Universities in China
Liaoning Revitalization Talents Program
Natural Science Foundation of Liaoning Province
Natural Science Foundation of Hebei Province
Subject
Physical and Theoretical Chemistry,Analytical Chemistry
Cited by
7 articles.
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