김현우
2016-10-21T08:06:20Z
2016-10-21T08:06:20Z
2015-04
JOURNAL OF HAZARDOUS MATERIALS, v. 286, Page. 229-235
0304-3894
1873-3336
http://www.sciencedirect.com/science/article/pii/S0304389414009893
http://hdl.handle.net/20.500.11754/23912
"We report, and propose a mechanism for, the exceptional hydrogen gas (H-2) sensing ability of ZnO nanofibers. In comparison to SnO2 nanofibers, ZnO nanofibers show outstanding H-2 gas response and unmistakable H-2 selectivity. Different from the reducing gas effect observed in SnO2 nanofibers, a semiconductor-to-metal transition that occurs in the presence of H-2 gas molecules is responsible for the exceptional response and selectivity of ZnO nanofibers to Hy. Notably, the presence of nanograins within nanofibers further intensifies the resistance modulation observed due to this transition. (C) 2014 Elsevier B.V. All rights reserved."
This work was supported by a grant from the 501100003725National Research Foundation of Korea (NRF), funded by the Korean government (MEST) (no. 2012R1A2A2A01013899).
en
ELSEVIER SCIENCE BV
Surface metallization
ZnO
H-2
Gas sensor
Sensing mechanism
Highly sensitive and selective H-2 sensing by ZnO nanofibers and the underlying sensing mechanism
Article
286
10.1016/j.jhazmat.2014.12.007
229-235
JOURNAL OF HAZARDOUS MATERIALS
Katoch, Akash
Choi, Sun-Woo
Kim, Hyoun Woo
Kim, Sang Sub
2015000315
S
COLLEGE OF ENGINEERING[S]
DIVISION OF MATERIALS SCIENCE AND ENGINEERING
hyounwoo