期刊
CHEMICAL PHYSICS LETTERS
卷 689, 期 -, 页码 92-99出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2017.09.057
关键词
Ammonia; Hexagonal microdiscs; Hollow square; BET analysis; Ni-doped ZnO
资金
- MEXT-Japan
High sensitivity ammonia (NH3) gas sensor based on nickel-doped ZnO (NZO) hexagonal microdisc like-nanostructures is reported in this work. Field-emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) revealed that the undoped ZnO revealed interconnected hexagonal microdiscs transformed into hollow square shaped interconnected hexagonal microdiscs. NZO (6 wt%) showed higher response compared with other wt% and exhibited highest response of 15.1 when exposed to 100 ppm concentration of ammonia (NH3) gas at 150 degrees C. NZO (6 wt%) possessed good response time of 5.5 s at 100 ppm. (C) 2017 Elsevier B.V. All rights reserved.
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