Drastic Improvement of Sensing Characteristics in SnO2 Nanowires by Functionalizing with Pt

Title
Drastic Improvement of Sensing Characteristics in SnO2 Nanowires by Functionalizing with Pt
Authors
이종무; 김상섭
Keywords
SnO2, Nanowires, Pt, Sensors, NO2.
Issue Date
2013
Publisher
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Series/Report no.
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY; vol.13 no.9 startpage 6216 endpage 6221
Abstract
We fabricated SnO2/Pt core?shell nanowires by means of a two-step process, in which Pt layers were sputtered onto the surface of networked SnO2 nanowires. For Pt-functionalization, we have synthesized the SnO2-Pt core?shell nanowires by depositing Pt layers using a sputtering method on bare SnO2 nanowires, subsequently annealing and thus transforming the continuous Pt shell layers into Pt nanoparticles. The NO2 gas sensing test demonstrated the ability of the Pt functionalization to attain the higher sensitivity and faster response than bare SnO2 nanowires. The possible mechanisms for improvment of the sensing properties by Pt-functionalization were discussed.
URI
http://dspace.inha.ac.kr/handle/10505/32772
ISSN
1533-4880
Appears in Collections:
College of Engineering(공과대학) > Materials Science & Engineering (신소재공학) > Local Access Journal, Reports (신소재공학 논문, 보고서)

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