A highly sensitive catalytic gas sensor for hydrogen detection based on sputtered nanoporous platinum

Sturm, Hannes; Brauns, E.; Seemann, Torben; Zoellmer, V.; Lang, Walter

doi:10.1016/j.proeng.2010.09.063

Cited by 13 publications

(12 citation statements)

References 5 publications

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“…In 2001, Shin et al [420] designed a thick film NiO-based H 2 sensor (Figure 16a), in which a half surface coated by a Pt thin layer is acting as catalyst, reacting with H 2 and releasing heat, creating a hot region so that a TE voltage can form across the hot and cold region of the film to indicate the existence of H 2 . Such film gas sensors have shown sufficient sensitivity and short response time, [421] Adv. Energy Mater.…”

Section: Te Gas Sensorsmentioning

confidence: 99%

“…[420] Thick film NiO-based H 2 sensors have also been investigated via Li doping and using different oxide layers [422] and substrates, [423] which show reasonable sensing properties at room temperature with noise-free voltage signals. [421] Moreover, a double AuPtPd/SnO 2 and Pt/Al 2 O 3 catalyst [428] and Au/SnO 2 -Co 3 O 4 [429] (Figure 16b,c) on a micro-TE sensor was used for CO gas sensing; porous alumina-based sensors were developed for hydrocarbon; [430] dual-catalyzed Pd/θ-Al 2 O 3 and Pt/α-Al 2 O 3 system were able to detect H 2 and CH 4 , [431] which can be used in monitoring the combustion of fuel gas in industrial furnaces. [421] Moreover, a double AuPtPd/SnO 2 and Pt/Al 2 O 3 catalyst [428] and Au/SnO 2 -Co 3 O 4 [429] (Figure 16b,c) on a micro-TE sensor was used for CO gas sensing; porous alumina-based sensors were developed for hydrocarbon; [430] dual-catalyzed Pd/θ-Al 2 O 3 and Pt/α-Al 2 O 3 system were able to detect H 2 and CH 4 , [431] which can be used in monitoring the combustion of fuel gas in industrial furnaces.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…In 2001, Shin et al designed a thick film NiO‐based H 2 sensor ( Figure 16 a), in which a half surface coated by a Pt thin layer is acting as catalyst, reacting with H 2 and releasing heat, creating a hot region so that a TE voltage can form across the hot and cold region of the film to indicate the existence of H 2 . Such film gas sensors have shown sufficient sensitivity and short response time, becoming promising in gas alarms and fuel gas control systems . Thick film NiO‐based H 2 sensors have also been investigated via Li doping and using different oxide layers and substrates, which show reasonable sensing properties at room temperature with noise‐free voltage signals.…”

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

“…Thick film NiO‐based H 2 sensors have also been investigated via Li doping and using different oxide layers and substrates, which show reasonable sensing properties at room temperature with noise‐free voltage signals. Other materials such as SiGe film, monodispersed SnO 2 nanoparticles, Pt/alumina catalyst, and chalcogenide nanowire arrays have been developed for H 2 sensing; among them, sensors based on monodispersed SnO 2 nanoparticles have shown the responses to other gases such as ethanol and NO x . Moreover, a double AuPtPd/SnO 2 and Pt/Al 2 O 3 catalyst and Au/SnO 2 –Co 3 O 4 (Figure b,c) on a micro‐TE sensor was used for CO gas sensing; porous alumina‐based sensors were developed for hydrocarbon; dual‐catalyzed Pd/θ‐Al 2 O 3 and Pt/α‐Al 2 O 3 system were able to detect H 2 and CH 4 , which can be used in monitoring the combustion of fuel gas in industrial furnaces .…”

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

See 3 more Smart Citations

High Performance Thermoelectric Materials: Progress and Their Applications

Yang

Chen

Dargusch

et al. 2017

Advanced Energy Materials

656

434

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Thermoelectric (TE) materials have the capability of converting heat into electricity, which can improve fuel efficiency, as well as providing robust alternative energy supply in multiple applications by collecting wasted heat, and therefore, assisting in finding new energy solutions. In order to construct high performance TE devices, superior TE materials have to be targeted via various strategies. The development of high performance TE devices can broaden the market of TE application and eventually boost the enthusiasm of TE material research. This review focuses on major novel strategies to achieve high‐performance TE materials and their applications. Manipulating the carrier concentration and band structures of materials are effective in optimizing the electrical transport properties, while nanostructure engineering and defect engineering can greatly reduce the thermal conductivity approaching the amorphous limit. Currently, TE devices are utilized to generate power in remote missions, solar–thermal systems, implantable or/wearable devices, the automotive industry, and many other fields; they are also serving as temperature sensors and controllers or even gas sensors. The future tendency is to synergistically optimize and integrate all the effective factors to further improve the TE performance, so that highly efficient TE materials and devices can be more beneficial to daily lives.

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Section: Te Gas Sensorsmentioning

confidence: 99%

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

Section: Thermoelectric Applications and Devicesmentioning

confidence: 99%

See 2 more Smart Citations

High Performance Thermoelectric Materials: Progress and Their Applications

Yang

Chen

Dargusch

et al. 2017

Advanced Energy Materials

656

434

View full text Add to dashboard Cite

show abstract

“…It was only after a while, that Sturm et al reported about a thermoelectric combustible gas sensor again. It showed improved sensitivity as sputtered nonporous platinum thin films were used as catalyst [ 12 ]. More recently, researchers have started using catalysts made from metal nanoparticles and thereby initiated a new era in gas sensing technology with high sensitivity and low power consumption [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Ligand-Linked Nanoparticles-Based Hydrogen Gas Sensor with Excellent Homogeneous Temperature Field and a Comparative Stability Evaluation of Different Ligand-Linked Catalysts

Pranti

Loof

Kunz

et al. 2019

Sensors

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This paper presents a thermoelectric gas microsensor with improved stability where platinum nanoparticles linked by bifunctional ligands are used as a catalyst. The sensor design provides a homogeneous temperature field over the membrane, an important factor for the long-term stability of the catalyst. A comprehensive study of heat transfer from the chip is performed to evaluate the convection heat loss coefficient and to understand its effect on the homogeneity of the temperature field in a real-time situation. The effect of highly heat-conductive thermopiles is also analyzed by comparing the temperature distribution and power consumption with a thermoresistive sensor of the same dimensions and materials. Despite the thermopiles, the thermoelectric sensor gives better temperature homogeneity and consumes 23% less power than the thermoresistive sensor for 90 °C average temperature on the membrane. A comparative stability analysis among ligand-linked nanoparticles with 5 different ligands and unprotected nanoparticles was done through 3 consecutive 24 h tests under 1.5% continuous hydrogen gas flow. The sensors give very stable output, almost no degradation, through 72 h (3 × 24 h) tests for 3 different ligand-linked nanoparticles. The sensor design provides superb stability to the catalyst: Even catalysts of unprotected nanoparticles withstood more than 24 h and the sensor signal degradation is only 20%.

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Hybride organisch‐anorganische thermoelektrische Materialien und Baueinheiten

Jin

Iocozzia

et al. 2019

Angewandte Chemie

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Organisch‐anorganische Hybridmaterialien gelten als neue Kandidaten auf dem Gebiet der thermoelektrischen Materialien. Sie haben ein großes Potenzial, die thermoelektrische Leistung zu verbessern, indem die niedrige Wärmeleitfähigkeit organischer Materialien einerseits sowie der hohe Seebeck‐Koeffizient und die hohe elektrische Leitfähigkeit anorganischer Materialien andererseits genutzt werden. In diesem Aufsatz soll ein Überblick über das Grenzflächen‐Engineering in der Synthese verschiedener organisch‐anorganischer thermoelektrischer Hybridmaterialien sowie über die dimensionale Gestaltung zur Optimierung ihrer thermoelektrischen Eigenschaften gegeben werden. Die Grenzflächeneffekte werden hinsichtlich Nanostrukturen, physikalischer Eigenschaften und chemischer Dotierung zwischen anorganischen und organischen Komponenten betrachtet. Einige Schlüsselfaktoren, die die thermoelektrische Effizienz und Leistung elektronischer Bauelemente bestimmen, werden ebenso diskutiert wie die Wärmeleitfähigkeit, der elektrische Transport, die elektronischen Bandstrukturen und die Bandkonvergenz der Hybridmaterialien.

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A highly sensitive catalytic gas sensor for hydrogen detection based on sputtered nanoporous platinum

Cited by 13 publications

References 5 publications

High Performance Thermoelectric Materials: Progress and Their Applications

High Performance Thermoelectric Materials: Progress and Their Applications

Ligand-Linked Nanoparticles-Based Hydrogen Gas Sensor with Excellent Homogeneous Temperature Field and a Comparative Stability Evaluation of Different Ligand-Linked Catalysts

Hybride organisch‐anorganische thermoelektrische Materialien und Baueinheiten

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