Hydrogen and ethanol sensors based on ZnO nanorods, nanowires and nanotubes

被引：238

作者：

Rout, CS

Krishna, SH

Vivekchand, SRC

Govindaraj, A

Rao, CNR

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

[2] Jawaharlal Nehru Ctr Adv Sci Res, DST Unit Nanosci, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India

来源：

CHEMICAL PHYSICS LETTERS | 2006年 / 418卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2005.11.040

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：

ZnO nanorods prepared by two different procedures and ZnO nanowires prepared by electrochemical deposition in alumina membranes as well as ZnO nanotubes have been investigated for hydrogen and ethanol sensing characteristics. The sensing characteristics of these nanostructures were also investigated after impregnating them with 1% Pt. The nanowires exhibit excellent hydrogen sensing characteristics at relatively low temperatures (<= 150 degrees C) specially when impregnated with Pt. One type of nanorods shows a satisfactory dependence of sensitivity on the hydrogen concentration, along with short recovery and response times. The nanorods and nanowires impregnated with Pt also show high sensitivity for 1000 ppm of ethanol at or below 150 degrees C, with short recovery and response times. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：586 / 590

页数：5

共 17 条

[1] Low temperature selective NO2 sensors by nanostructured fibres of ZnO [J].