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hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing

hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing

hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing

... Sensors and Actuators B 127 (2007) 137–142 Hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing E.H. Espinosaa, R. Ionescua, ... specific metal oxide in order to enhance sensitivity.© 2007 Elsevier B.V. All rights reserved.Keywords: Gas sensors; Hybrid metal oxides/MWCNTs; Low temperature operation1. Introduction Metal oxides ... ambient temperature of toxic gasessuch as nitrogen dioxide, carbon monoxide and ammonia orethanol vapors can be highlyimproved by dispersingan adequatequantity of carbon nanotubes into a metal oxide...
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highly - ordered carbon nanotube arrays for electronics applications

highly - ordered carbon nanotube arrays for electronics applications

... highdensity, well-ordered nanotube arrays. While efforts to fab-ricate high-quality crystalline ropes or bundles of carbon nanotubes10 and aligned arrays of isolated carbon nanotubes11–14have ... isolated carbon nanotubes withuniform diameters and periodic arrangement to meet devicerequirements. In this letter, we describe a method for fabri-cating large arrays of parallel carbon nanotubes ... acetylene flow is maintained for2 hat650 °C. The samples are then annealed in nitrogen for 15 h atthe same temperature. An SEM image of a highly ordered carbon nanotube array formed in this way is...
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Tài liệu Readability and Patient Education Materials Used for Low-Income Populations pptx

Tài liệu Readability and Patient Education Materials Used for Low-Income Populations pptx

... consideration. See the answer/enrollment form after the article for additional informationregarding the program.Readability and PatientEducation Materials Used for Low- Income PopulationsMEG WILSON, ... poverty,8,9Medicare and Medicaid recipients, and the uninsured hadlower health literacy levels.The Agency for Heal thcare Research and Quality(AHRQ)2examined the relationship between literacy and health ... Commissionaccreditation, these recommendations and standards couldprovide guidance for improved care and outcomes for patients in a variety of settings. No recommendations for reading levels or specific readability...
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Providing and Funding Financial Literacy Programs for Low- Income Adults and Youth pot

Providing and Funding Financial Literacy Programs for Low- Income Adults and Youth pot

... training and relatedservices; prepare for and obtain employment;prepare for and enter post-secondary training and education; provide personal and emotionalsupport to youth through mentors and thepromotion ... counseling,employment, education, and other appropriateservices to current and former foster carerecipients up to the age of 21; and makevouchers available for training.• Children, Youth, and Families at RiskInitiative ... youth for and succeeding inemployment, and offering other servicesintended to develop the potential of youth ascitizens and leaders. Eligible youth are those14-21 years of age, low- income, and...
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Carbon supports for low temperature fuel cell catalysts

Carbon supports for low temperature fuel cell catalysts

... of their form (for example microsphere). The examples are supports producedfrom ordered mesoporouscarbons, carbon aerogels, carbon nanotubes, carbonnanohorns, carbon nanocoils and carbon nanofibers. ... rpm and 1000 rpm. Carbon nanocoils were grown at 700 8C for 30 minusing C2H4 gas. Few works have been performed on catalysts supported onCNHs or CNCs for use in low- temperature fuel cells. For ... detailed comparison betweenmultiwalled and single-walled carbon nanotubes in an effort tounderstand which can be the better candidate of a futuresupporting carbon material for electrocatalyst in...
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gas - sensing properties of tin oxide doped with metal oxides and carbon

gas - sensing properties of tin oxide doped with metal oxides and carbon

... Bittencourt, A. Fel-ten, J J. Pireaux, X. Correig, E. Llobet, Hybrid metal oxide and multiwall carbon nanotube films for low temperature gas sensing, Sens. Actuators B 127 (2007)137–142.[14] N.V. ... press as: N. Van Hieu, et al., Gas- sensing properties of tin oxide doped with metal oxides and carbon nanotubes:A competitive sensor for ethanol and liquid petroleum gas, Sens. Actuators B: Chem. ... press as: N. Van Hieu, et al., Gas- sensing properties of tin oxide doped with metal oxides and carbon nanotubes:A competitive sensor for ethanol and liquid petroleum gas, Sens. Actuators B: Chem....
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quasi - one - dimensional metal oxide materials — synthesis, properties and applications

quasi - one - dimensional metal oxide materials — synthesis, properties and applications

... design and power consumption. Fortunately, metal oxide nanowire based gas sensors have demonstrated significantly higher sensitivity at room temperature. For example, room temperature NO2 sensing ... research effort focuses on the chemical sensing based on metal oxide nanowires, such aszinc oxide (ZnO), tin oxide (SnO2), indium oxide (In2O3) aluminum oxide (Al2O3), gallium oxide (Ga2O3), ... as amorphous carbon and carbon nitride [192].Sn[93] and Ga [193] doped ZnO has demonstrated lower turn-on electricfield. Furthermore, since a drawback of using metal oxide materials for field-emission...
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