Hydrogen sensors based on aligned carbon nanotubes in an anodic aluminum oxide template with palladium as a top electrode

被引：70

作者：

Ding, Dongyan ^{[1
]}

Chen, Zhi ^{[1
]}

Rajaputra, Suresh ^{[1
]}

Singh, Vijay ^{[1
]}

机构：

[1] Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2007年 / 124卷 / 01期

基金：

美国国家科学基金会;

关键词：

hydrogen sensor; carbon nanotube; palladium; resistance;

D O I：

10.1016/j.snb.2006.11.034

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Robust carbon nanotube (CNT)-based hydrogen sensors were fabricated from aligned CNTs grown in an anodic aluminum oxide (AAO) template. Without Pd modification, an Au-electrode CNT sensor shows no response to hydrogen gas. On the other hand, a Pd-electrode CNT sensor is sensitive to medium concentration hydrogen gas (from 0.1% to 1.5% H-2) at room temperature. The aligned CNTs ill the AAO template are also a good support for the nanoporous Pd film sensor, which is sensitive to hydrogen gas at concentrations ranging from 100ppm to 1.5% H-2. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：12 / 17

页数：6

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