A greenhouse gas silicon microchip sensor using a conducting composite with single walled carbon nanotubes

Olney, David; Fuller, Lynn; Santhanam, K. S. V.

doi:10.1016/j.snb.2013.10.039

Cited by 23 publications

(17 citation statements)

References 42 publications

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“…The methane mole fraction (ppb) is expected to reach about 1850 by 2018, and was approximately 1780 in the year 2000 (https: //www.washingtonpost.com/news/energy-environment/wp/2016/12/11/atmospheric-levelsof-methane-a-powerful-greenhouse-gas-are-spiking-scientists-report/?utm_term=.4a77e6472f2c). A recently published review [5] demonstrated that a sensor developed for carbon dioxide should consider its response to methane in the atmosphere. Figure 3 shows the simulated effect of methane interference in the measurement of carbon dioxide gas.…”

Section: Status Of Methanementioning

confidence: 99%

Greenhouse Gas Sensors Fabricated with New Materials for Climatic Usage: A Review

Santhanam

Ahamed

2018

ChemEngineering

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With the increasing utilization of fossil fuels in today’s technological world, the atmosphere’s concentration of greenhouse gases is increasing and needs to be controlled. In order to achieve this goal, it is imperative to have sensors that can provide data on the greenhouse gases in the environment. The recent literature contains a few publications that detail the use of new methods and materials for sensing these gases. The first part of this review is focused on the possible effects of greenhouse gases in the atmosphere, and the second part surveys the developments of sensors for greenhouse gases with coverage on carbon nano-materials and composites directed towards sensing gases like CO2, CH4, and NOx. With carbon dioxide measurements, due consideration is given to the dissolved carbon dioxide gas in water (moisture). The density functional calculations project that Pd-doped single-walled carbon nanotubes are ideal for the development of NOx sensors. The current trend is to make sensors using 3D printing or inkjet printing in order to allow for the achievement of ppb levels of sensitivity that have not been realized before. This review is to elaborate on the need for the development of greenhouse gas sensors for climatic usage by using selected examples.

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Section: Status Of Methanementioning

confidence: 99%

Greenhouse Gas Sensors Fabricated with New Materials for Climatic Usage: A Review

Santhanam

Ahamed

2018

ChemEngineering

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“…Recently, Olney et al. prepared a composite of SWCNTs and 3,4‐polyethylenedioxythiophene–polystyrene sulfonate (PEDOT–PSS) that showed sensitivity to CO 2 down to 10 ppm . FTIR spectra of the active material before and after CO 2 exposure saw a shift in the PSS band from

\overset{ν}{true}

=1195 to 1176 cm −1 ; this was suggested to be caused by phase separation of the polymer layer upon CO 2 adsorption.…”

Section: Cnt‐based Gas Sensorsmentioning

confidence: 99%

Carbon Nanotube Based Gas Sensors toward Breath Analysis

Ellis

Star

2016

ChemPlusChem

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Breath analysis is a promising method for rapid, inexpensive, noninvasive disease diagnosis and health monitoring owing to the correlative relationship between breath biomarker concentrations and abnormal health conditions. However, current methods to identify and quantify breath components rely on large, bench‐top analytical instruments. Carbon nanotube (CNT)‐based gas sensors are desirable candidates to replace benchtop instruments because of their sensitive chemical‐to‐electrical transducer capability, high degree of chemical functionality options, and potential for miniaturization. This review seeks to give an overview of the synthetic methods used to functionalize CNT‐based gas sensors, specifically those sensors that target biologically relevant breath markers. Specific examples are provided to highlight the sensing mechanisms behind different classes of CNT hybrid composites. Finally, the current challenges and prospective solutions of applying CNT‐based sensors to breath analysis are discussed.

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“…Among these materials, carbon nanotubes (CNTs) is one of the most widely explored carbon based nanomaterial due to their amazing structure and surprising physicochemical properties [1]. Since its discovery by Iijima in 1991 [2], CNTs have attracted extensive attention from researchers because of their extraordinary mechanical, electrical, and thermal properties which make them viable candidates for a wide variety of potential applications in chemical [3], physical [4], electronics [5], medical [6], aeronautical [7], automotive [8] fields, and so on [9][10][11]. Some of these properties are: the Young modulus is around 1 TPa and its maximum tensile strength can reach 300 GPa, excellent electronic properties, exceptional thermal conductivity [12,13].…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube functionalized with dodecylamine for the effective dispersion in solvents

Ferreira

Francisco

Menezes

et al. 2015

Applied Surface Science

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A greenhouse gas silicon microchip sensor using a conducting composite with single walled carbon nanotubes

Cited by 23 publications

References 42 publications

Greenhouse Gas Sensors Fabricated with New Materials for Climatic Usage: A Review

Greenhouse Gas Sensors Fabricated with New Materials for Climatic Usage: A Review

Carbon Nanotube Based Gas Sensors toward Breath Analysis

Carbon nanotube functionalized with dodecylamine for the effective dispersion in solvents

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