Development of ultra-low-power consumption MOX sensors with ppb-level VOC detection capabilities for emerging applications

Elmi, I.; Zampolli, S.; Cozzani, E.; Mancarella, F.; Cardinali, G.C.

doi:10.1016/j.snb.2008.09.002

Cited by 145 publications

(113 citation statements)

References 30 publications

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“…The mp-Al2O3 powder showed hysteresis behavior at higher relative pressures, which is associated with capillary condensation in mesopores [20]. The pore volume 8 of the mp-Al2O3 powder was relatively large, and the peak of pore distribution calculated from the adsorption isotherm (ca. 6.6 nm) was similar to that from the desorption isotherm (ca.…”

Section: Characterizations Of Au/pd Nanoparticles and Mp-al2o3 Powdersmentioning

confidence: 99%

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Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction

Hyodo

Yuzuriha

Nakagoe

et al. 2014

Sensors and Actuators B: Chemical

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Adsorption/combustion-type gas sensors employing mesoporous γ-alumina (mp-Al2O3) powders loaded with core(Au)/shell(Pd) nanoparticles, which were synthesized by sonochemical reduction, (n(Au/Pd)/mp-Al2O3, n: the amount of Au/Pd nanoparticles loaded, Pd loaded onto the mp-Al2O3 powders was reduced (≤ 0.5 wt%). These sensing properties seem to be largely dependent on the morphological and compositional characteristics of Au and Pd loaded on the γ-alumina surface. In addition, the n(Au/Pd)/mp-Al2O3 sensors showed much larger response to ethanol than those to toluene and n-hexane, probably because of the difference in the magnitude of polarity (dipole moment and dielectric constant) of their molecules. However, the sensors obviously detected even 10 ppm n-hexane with the extremely low dipole moment and dielectric constant. These results promise that the n(Au/Pd)/mp-Al2O3 sensors can detect the lower concentration of these gases as well as other VOCs.

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Section: Characterizations Of Au/pd Nanoparticles and Mp-al2o3 Powdersmentioning

confidence: 99%

“…Development on various types of VOC sensors have recently been attempted by many researchers [5][6][7][8][9][10]. We have also developed adsorption/combustion-type VOC sensors during the past decade [11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction

Hyodo

Yuzuriha

Nakagoe

et al. 2014

Sensors and Actuators B: Chemical

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“…A wide variety of electronic sensors, most of them based on semiconductor technology is under development for VOCs detection [6], however, they present many drawbacks, such as their high response time [7], low selectivity, non-immunity to electromagnetic interferences [8] or the need of biasing [9]. Thus, there is a need for the development of more accurate, less expensive and short response time sensors.…”

Section: Introductionmentioning

confidence: 99%

Detection of Ethanol in Human Breath Using Optical Fiber Long Period Grating Coated with Metal-Organic Frameworks

Hromádka

Tokay

et al. 2017

Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017

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An optical fiber sensor for ethanol detection in exhaled breath has been developed. It has been fabricated by functionalizing a Long Period Grating with a metal-organic framework, ZIF-8. The sensor's response was tested by exposure to exhaled breath of a person before and after the ingestion of alcoholic drinks, showing a higher wavelength difference between the resonance bands in the second case. Further work will analyze cross-sensitivity towards temperature, relative humidity and carbon dioxide.

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“…The power consumption of MOX sensors needs to be reduced to reach the battery life levels required by the logistic applications. In this work, we present the integration of an ULP MOX sensor array [1,2] in a semi-passive flexible RFID tag, which functionalities in the food logistic chain were already reported [3,4] for the detection of these target gases. The tag implements a 25 mAh small battery to power all the sensors.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of MOX Sensor Characteristics in Ultra-Low Power Operation Modes: Application to a Semi-Passive RFID Tag for Food Logistics

Palacio

Gómez

Burgués

et al. 2017

Proceedings of Eurosensors 2017, Paris, France, 3–6 September 2017

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Most of the battery powered systems with integrated sensors need low power consumption modes to enlarge the operation time. In the case of the fruit logistic chain, the fruit quality may be controlled by the detection of some gases as ethylene, acetaldehyde and ammonia, that are related to maturation, oxygen stress and refrigeration leakage. We report the integration of an ultra-low power (ULP) metal oxide (MOX) sensor array inside a Radio Frequency IDentification (RFID) 13.56 MHz ISO/IEC 15693 compliant tag with temperature, humidity and light sensors and data logging capabilities. Pulsed Temperature Operation (PTO), which consists in switching on and off the sensor heater, was used to reduce power consumption more than three orders of magnitude, from 14 mW down to 7 μW. The sensor behavior was characterized in terms sensitivity for ammonia.

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Development of ultra-low-power consumption MOX sensors with ppb-level VOC detection capabilities for emerging applications

Cited by 145 publications

References 30 publications

Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction

Adsorption/combustion-type gas sensors employing mesoporous γ-alumina loaded with core(Au)/shell(Pd) nanoparticles synthesized by sonochemical reduction

Detection of Ethanol in Human Breath Using Optical Fiber Long Period Grating Coated with Metal-Organic Frameworks

Evaluation of MOX Sensor Characteristics in Ultra-Low Power Operation Modes: Application to a Semi-Passive RFID Tag for Food Logistics

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