Ultra-sensitive benzene detection by a novel approach: Core-shell nanowires combined with the Pd-functionalization
- Authors
- Kim, Jae-Hun; Kim, Hyoun Woo; Kim, Sang Sub
- Issue Date
- Feb-2017
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- SnO2-ZnO; Core-shell nanowire; Pd-Functionalization; Benzene (C-6 H-6); Gas sensor
- Citation
- SENSORS AND ACTUATORS B-CHEMICAL, v.239, pp.578 - 585
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS AND ACTUATORS B-CHEMICAL
- Volume
- 239
- Start Page
- 578
- End Page
- 585
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/20574
- DOI
- 10.1016/j.snb.2016.08.071
- ISSN
- 0925-4005
- Abstract
- We have realized an excellent selective sensing to benzene (C₆H₆) by means of using SnO₂-ZnO core shell nanowires functionalized with Pd nanoparticles. We obtained a response of 71 for 100 ppb of C₆H₆, which is the highest response reported thus far. The synergistic effects of variation of SnO₂/ZnO potential barriers and chemical sensitization of Pd are responsible for the highest C₆H₆-sensing performance. These results highlight the potential for using Pd functionalized nanowires as a sensing platform in detecting trace concentrations of benzene, which is applicable in the future sensor, including the disease diagnosis and the environmental monitoring.
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