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

Dongyan Ding; Zhi Chen; Suresh Rajaputra; Vijay Singh

doi:10.1016/j.snb.2006.11.034

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

Dongyan Ding, Zhi Chen, Suresh Rajaputra, Vijay Singh

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

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% H₂) at room temperature. The aligned CNTs in the AAO template are also a good support for the nanoporous Pd film sensor, which is sensitive to hydrogen gas at concentrations ranging from 100 ppm to 1.5% H₂.

Original language	English
Pages (from-to)	12-17
Number of pages	6
Journal	Sensors and Actuators, B: Chemical
Volume	124
Issue number	1
DOIs	https://doi.org/10.1016/j.snb.2006.11.034
State	Published - Jun 10 2007

Bibliographical note

Funding Information:
This work was supported by National Science Foundation (EPSCOR0447479), Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171), and Army Research Laboratory (W911NF-04-2-0023).

Keywords

Carbon nanotube
Hydrogen sensor
Palladium
Resistance

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2006.11.034

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

abstract = "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% H2) at room temperature. The aligned CNTs in the AAO template are also a good support for the nanoporous Pd film sensor, which is sensitive to hydrogen gas at concentrations ranging from 100 ppm to 1.5% H2.",

keywords = "Carbon nanotube, Hydrogen sensor, Palladium, Resistance",

author = "Dongyan Ding and Zhi Chen and Suresh Rajaputra and Vijay Singh",

note = "Funding Information: This work was supported by National Science Foundation (EPSCOR0447479), Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171), and Army Research Laboratory (W911NF-04-2-0023). ",

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AU - Ding, Dongyan

AU - Chen, Zhi

AU - Rajaputra, Suresh

AU - Singh, Vijay

N1 - Funding Information: This work was supported by National Science Foundation (EPSCOR0447479), Department of Energy (DE-FG02-00ER4582 and DE-FG26-04NT42171), and Army Research Laboratory (W911NF-04-2-0023).

PY - 2007/6/10

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N2 - 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% H2) at room temperature. The aligned CNTs in the AAO template are also a good support for the nanoporous Pd film sensor, which is sensitive to hydrogen gas at concentrations ranging from 100 ppm to 1.5% H2.

AB - 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% H2) at room temperature. The aligned CNTs in the AAO template are also a good support for the nanoporous Pd film sensor, which is sensitive to hydrogen gas at concentrations ranging from 100 ppm to 1.5% H2.

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KW - Palladium

KW - Resistance

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

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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