Deposition of Pt-catalyst in a micro-channel of a silicon reactor: Application to gas micro-TAS working at high temperature

Roumanie, Marilyne; Pijolat, Christophe; Meille, Valérie; Bellefon, Claude de; Pouteau, Patrick; Delattre, Cyril

doi:10.1016/j.snb.2006.04.035

Cited by 18 publications

(14 citation statements)

References 18 publications

(16 reference statements)

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“…Thus, separation of N 2 , CO, and C 2 hydrocarbons is possible. The MULTUM will be combined with a gas-chromatograph with micro-total analysis system 32) , which focuses to separate major gas components, such as H 2 O, CO 2 , NH 3 , CH 4 , and other light hydrocarbons (Table 2). For detailed isotopic analyses, including 17 O, a high-resolution infrared spectrometer would be required to measure the three isotopic ratios of oxygen with high accuracy.…”

Section: Tk_10mentioning

confidence: 99%

Exploration of Enceladus^|^apos; Water-Rich Plumes toward Understanding of Chemistry and Biology of the Interior Ocean

Sekine

Takano

Yano

et al. 2014

AEROSPACE TECHNOLOGY JAPAN

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Enceladus is the only icy satellite known to exhibits on-going geological activity of water-rich plumes derived from the interior ocean. Here, we propose a sample return and in-situ measurement mission for Enceladus' plume materials. Depending on the cost, mission duration, and propulsion system, we propose three types of missions to Enceladus; type 1: free-return trajectory, type 2: trajectory orbiting Saturn, and type 3: trajectory orbiting Enceladus. Type 2 and 3 are preferable to type 1 in order to achieve lower encountering velocity to the plumes (> 4 km/s and 0.2 km/s for type 2 and 3, respectively) and, thus, to collect multiple and intact samples. High resolution mass spectroscopy of the gas components will provide essential information to understand the physical and chemical conditions of both the interior ocean and the solar nebula. Furthermore, detailed onboard and onshore analyses of returned samples could provide geochemical, preboplogical, and, potentially, biological context in the interior ocean of Enceladus.

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Section: Tk_10mentioning

confidence: 99%

Exploration of Enceladus^|^apos; Water-Rich Plumes toward Understanding of Chemistry and Biology of the Interior Ocean

Sekine

Takano

Yano

et al. 2014

AEROSPACE TECHNOLOGY JAPAN

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“…This heating element is used to heat the device at temperatures up to 500 • C with a very homogeneous distribution of the temperature considering the good thermal conductivity of the silicon, as it was reported in our previous work on microreactor for gas-solid catalyst [17] and as shown in Fig. 3 on the right hand side.…”

Section: Preconcentrator Fabricationmentioning

confidence: 99%

“…In a previous study a catalytic microreactor has been developed to act as a filter to improve the selectivity to methane of a sensor placed downstream of the device [17]. The present work aims at developing a silicon preconcentrator device based on this concept, with new approaches in the design as well as in the choice of materials, replacing the catalyst by a gas absorbent material.…”

Section: Introductionmentioning

confidence: 99%

Micro gas preconcentrator in porous silicon filled with a carbon absorbent

Camara¹,

Breuil²,

Briand³

et al. 2010

Sensors and Actuators B: Chemical

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International audienceThis paper presents the development of a gas preconcentrator based on a micro-channel in porous silicon filled with carbon nanopowders by a micro-fluidic process. The particularity of this device is its applicability in the fields of atmospheric pollution monitoring by targeting VOCS (volatiles organic compounds). Various designs of micro-devices have been investigated and a special focus has been dedicated to the carbon adsorbent. The optimization of the device and its operation were driven by its future application in outdoor environments. The benefits of using porous silicon to ease the fixing of the carbon absorbent in micro-channels and to modify the gas desorption kinetic are also investigated. Results on a device based on a carbon adsorbent powder filled in a porous silicon micro-channel for benzene preconcentration are reported

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“…In a previous study, such a device has been developed for catalytic conversion either for hydrogen production [10] or for gas transformation to improve the selective detection by a sensor placed at the exit of the micro-fluidic reactor [11]. In order to achieve these objectives, a silicon micro-reactor with micro-channels fabricated by deep reactive ion etching (DRIE) has been developed.…”

Section: Introductionmentioning

confidence: 99%

Application of carbon nano-powders for a gas micro-preconcentrator

Pijolat

Camara

Courbat

et al. 2007

Sensors and Actuators B: Chemical

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This paper presents a feasibility study on the development of a gas preconcentrator based on micro-reactor technology on silicon. The objectives are to select a gas adsorbent material, to produce a silicon micro-reactor with an integrated heater, and finally to introduce the most suitable adsorbent into the micro-channels of the device. Preliminary results related to the characterization of a carbon adsorbent for the development of a device for the preconcentration of benzene are reported. Carbon nano-powders have been tested as adsorbent material by the determination of the breakthrough time on a dedicated test bench consisting of gas sensors and a non-selective photoionization detector (micro-PID) analyzer. A fluidic deposition process allows filling up the silicon micro-channels with the carbon nano-powder. The interest in using porous silicon to enhance the binding of the carbon nano-particles in the micro-channels was also investigated. A silicon micromachined preconcentrator filled with 0.30 mg of commercial activated charcoal powder (Aldrich, 30-100 nm) was designed and built up. The total capacity of adsorption was determined by using the breakthrough time, which is of 2.2 min under a gas flow of 100 ppm of benzene at 1 l/h. Preliminary tests of preconcentration with 100 and 1.3 ppm benzene in dry air were performed.

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Deposition of Pt-catalyst in a micro-channel of a silicon reactor: Application to gas micro-TAS working at high temperature

Cited by 18 publications

References 18 publications

Exploration of Enceladus^|^apos; Water-Rich Plumes toward Understanding of Chemistry and Biology of the Interior Ocean

Exploration of Enceladus^|^apos; Water-Rich Plumes toward Understanding of Chemistry and Biology of the Interior Ocean

Micro gas preconcentrator in porous silicon filled with a carbon absorbent

Application of carbon nano-powders for a gas micro-preconcentrator

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