Controlled synthesis of Ni-doped ZnO hexagonal microdiscs and their gas sensing properties at low temperature

被引：56

作者：

Ganesh, R. Sankar ^{[1
,2
,3
]}

Durgadevi, E. ^{[3
]}

Navaneethan, M. ^{[2
]}

Patil, V. L. ^{[4
]}

Ponnusamy, S. ^{[2
]}

Muthamizhchelvan, C. ^{[2
]}

Kawasaki, S. ^{[5
]}

Patil, P. S. ^{[4
]}

Hayakawa, Y. ^{[1
,3
]}

机构：

[1] Shizuoka Univ, Grad Sch Sci & Technol, Naka Ku, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328011, Japan

[2] SRM Univ, Ctr Mat Sci & Nano Devices, Dept Phys & Nanotechnol, Kancheepuram 603203, Tamil Nadu, India

[3] Shizuoka Univ, Res Inst Elect, Naka Ku, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328011, Japan

[4] Shivaji Univ, Thin Film Mat Lab, Dept Phys, Kolhapur, Maharashtra, India

[5] Nagoya Inst Technol, Dept Mat Sci & Engn, Gokiso Ku, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 689卷

关键词：

Ammonia; Hexagonal microdiscs; Hollow square; BET analysis; Ni-doped ZnO; SNO2; THIN-FILM; MAGNETIC-PROPERTIES; OPTICAL-PROPERTIES; ENHANCED ETHANOL; NANORODS; AMMONIA; NANOPARTICLES; PERFORMANCE; CU;

D O I：

10.1016/j.cplett.2017.09.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：92 / 99

页数：8

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