H2S gas sensing, properties of CuO-functionalized WO3 nanowires
- Authors
- Park, Suyoung; Park, Sunghoon; Jung, Jihwan; Hong, Taeseop; Lee, Sangmin; Kim, Hyoun Woo; Lee, Chongmu
- Issue Date
- Aug-2014
- Publisher
- ELSEVIER SCI LTD
- Keywords
- WO3 nanowires; SnO2 nanorods; Gas sensors; CuO-functionalization
- Citation
- CERAMICS INTERNATIONAL, v.40, no.7, pp.11051 - 11056
- Indexed
- SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 40
- Number
- 7
- Start Page
- 11051
- End Page
- 11056
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159400
- DOI
- 10.1016/j.ceramint.2014.03.120
- ISSN
- 0272-8842
- Abstract
- This paper compares the H2S gas sensing properties of CuO-functionalized WO3 nanowires with those of CuO-functionalized SnO2 nanorods to see the relative contributions of the nanowire material (WO3 or SnO2) and functionalization material (CuO) to H2S gas sensing properties. Multiple networked CuO-functionalized WO3 nanowire sensors showed electrical responses to H2S gas at 300 degrees C comparable to their CuO-functionalized SnO2 nanorod counterparts. The CuO-functionalized WO3 nanowires and CuO-functionalized SnO2 nanorods exhibited responses of similar to 673% and similar to 798%, respectively, to 100 ppm H2S at 300 degrees C. The ratio of the response of CuO-functionalized WO3 nanowires to H2S gas to that of pristine WO3 nanowires was 3.65, whereas the ratio of the response of CuO-functionalized SnO2 nanorods to H2S gas to that of pristine SnO2 nanorods was 3.84. Differences in sensing mechanism between CuO-functionalized WO3 nanowires and CuO-functionalized SnO2 nanorods are also discussed.
- 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/159400)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.