Improvement of Gas Sensing Characteristics by Adding Pt Nanoparticles on ZnO-Branched SnO2 Nanowires
- Authors
- Na, Han Gil; Kwon, Yong Jung; Cho, Hong Yeon; Kang, Sung Yong; Kim, Hyoun Woo
- Issue Date
- Nov-2015
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Branched Nanowires; ZnO; Pt Nanoparticles; Chemical Sensors
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.15, no.11, pp.8571 - 8576
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 15
- Number
- 11
- Start Page
- 8571
- End Page
- 8576
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156008
- DOI
- 10.1166/jnn.2015.11504
- ISSN
- 1533-4880
- Abstract
- We coated zinc-oxide (ZnO)-branched tin oxide (SnO2) nanowires with a Pt shell layer via a sputtering method and subsequently annealed the composite to generate Pt nanoparticles. The spillover effect of Pt nanoparticles was expected to play a significant role in enhancing the response. X-ray diffraction, scanning electron microscopy, and transmission electron microscopy revealed that the nanoparticles were comprised of a cubic Pt phase. A sensing test with NO2 gas revealed that the sensor response to NO2 gas was significantly increased, being related to the spillover effect of the Pt nanoparticles. As a result of the Pt-functionalization, the sensor response time and recovery time were decreased and increased, respectively. The high sensor response and fast response time make Pt-functionalized ZnO branched nanowires a promising candidate for gas sensors. The present work will be useful in exploring new areas of multiple-component nanosystems.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156008)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.