Hydrogen Gas Sensing with Networks of Ultrasmall Palladium Nanowires Formed on Filtration Membranes
- 29 November 2010
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 11 (1), 262-268
- https://doi.org/10.1021/nl103682s
Abstract
Hydrogen sensors based on single Pd nanowires show promising results in speed, sensitivity, and ultralow power consumption. The utilization of single Pd nanowires, however, face challenges in nanofabrication, manipulation, and achieving ultrasmall transverse dimensions. We report on hydrogen sensors that take advantage of single palladium nanowires in high speed and sensitivity and that can be fabricated conveniently. The sensors are based on networks of ultrasmall (<10 nm) palladium nanowires deposited onto commercially available filtration membranes. We investigated the sensitivities and response times of these sensors as a function of the thickness of the nanowires and also compared them with a continuous reference film. The superior performance of the ultrasmall Pd nanowire network based sensors demonstrates the novelty of our fabrication approach, which can be directly applied to palladium alloy and other hydrogen sensing materials.This publication has 29 references indexed in Scilit:
- Crossover behavior in the hydrogen sensing mechanism for palladium ultrathin filmsNanotechnology, 2010
- Ultralow-power hydrogen sensing with single palladium nanowiresApplied Physics Letters, 2009
- The Hydrogen EconomyPhysics Today, 2004
- Thin palladium film as a sensor of hydrogen gas dissolved in transformer oilSensors and Actuators B: Chemical, 2002
- A novel high-sensitive Pd/InP hydrogen sensor fabricated by electroless platingSensors and Actuators B: Chemical, 2002
- Polysilicon mesoscopic wires coated by Pd as high sensitivity H2 sensorsSensors and Actuators B: Chemical, 2002
- Functionalized Carbon Nanotubes for Molecular Hydrogen SensorsAdvanced Materials, 2001
- Flammability of gas mixtures containing volatile organic compounds and hydrogenJournal of Loss Prevention in the Process Industries, 2000
- Detectivity comparison between thin-film Pd/PVDF photopyroelectric interferometric and optical reflectance hydrogen sensorsReview of Scientific Instruments, 1999
- Solid-state sensors for trace hydrogen gas detectionJournal of Applied Physics, 1990