The principles of the detection of flammable atmospheres by catalytic devices

Firth, J. G.; Jones, Alan R.; Jones, Tony

doi:10.1016/0010-2180(73)90021-7

Cited by 111 publications

(35 citation statements)

References 2 publications

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“…2 [3] have poor selectivity for hydrogen gas and require heating the sensor head. Optical [4] and micro-mechanical sensors [5] require sophisticated optical detection systems.…”

mentioning

confidence: 99%

Metallic spintronic thin film as a hydrogen sensor

Chang

Kostylev

Ivanov

2013

Applied Physics Letters

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We investigate the response of palladium-cobalt bi-layer thin films to hydrogen charging at atmospheric pressure for spintronic applications. We find that hydrogen absorption by the palladium layer results in the narrowing and shifting of the ferromagnetic resonance line for the material. We explain the observed phenomena as originating from reduction in spin pumping effect and from variation in the magnetic anisotropy of the cobalt film through an interface effect. The shift of the resonance frequency or field is the easiest to detect. We utilize it to demonstrate functionality of the bi-layer films as a hydrogen sensor.Recently, the demand for highly stable and sensitive hydrogen gas sensors has increased due to growing importance of fuel cell applications. Various types of hydrogen gas sensors have been proposed [1]. All the proposed sensors have a number of drawbacks. In particular, sensors either based on variation of resistance of semiconductors [2], or on catalytic oxidation of noble metals * Corresponding author.

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“…2 [3] have poor selectivity for hydrogen gas and require heating the sensor head. Optical [4] and micro-mechanical sensors [5] require sophisticated optical detection systems.…”

mentioning

confidence: 99%

Metallic spintronic thin film as a hydrogen sensor

Chang

Kostylev

Ivanov

2013

Applied Physics Letters

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“…The amount of energy produced by hydrogen is three times bigger than the energy contained in equal weight of gasoline and about seven times that of coal. Hydrogen can replace natural gas in warming home and powering hot water heaters [1][2][3][4][5]. Like any other gas type fuel, hydrogen is flammable and potentially dangerous.…”

Section: Introductionmentioning

confidence: 99%

“…Sensing hydrogen leakage from storage and transportation equipment is essential. Hydrogen also demands a careful handling, because a 4% (v/v) mixture in air is its lower explosive limit (LEL) [4]. The monitoring of the concentration of this gas close to its production and consumption plants is necessary to avoid accidents due to hydrogen explosions.…”

Section: Introductionmentioning

confidence: 99%

Recovery properties of hydrogen gas sensor with Pd/titanate and Pt/titanate nanotubes photo-catalyst by UV radiation from catalytic poisoning of H2S

Hong

Han

Park

et al. 2009

Current Applied Physics

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“…Several traditional sensing methods have been established to detect gas, such as catalytic, thermal, semiconductors, and surface acoustic wave, infrared spectroscopic, electrochemical and gas chromatographymass spectrometric (GC-MS) techniques [14][15][16]. Most of those conventional methods have complex and costly instrumentation and invariably need a long analysis time.…”

Section: Introductionmentioning

confidence: 99%