Synthesis, Characterization, and Applications of Nanoporous Materials for Sensing and Separation

Jiao, Kexin; Flynn, Katherine T.; Kohli, Punit

doi:10.1007/978-3-319-15338-4_22

Cited by 6 publications

(3 citation statements)

References 75 publications

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“…[123][124][125][126][127] AEF can create nano-and micro-domain structural changes that can be used for the formation of pores for sensing. [128][129][130] Non-electroactive polymers responding to electric fields imply that non-uniform polymers might have similar behavior in the right circumstances. 131 As previously described, some researchers use an AEF for a stimulus behavior or orientation of polymers for increased response and controlled activity.…”

Section: Electro-responsive Polymersmentioning

confidence: 99%

Review—Reorientation of Polymers in an Applied Electric Field for Electrochemical Sensors

LaFreniere

Roberge

Halpern

2020

J. Electrochem. Soc.

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This mini review investigates the relationship and interactions of polymers under an applied electric field (AEF) for sensor applications. Understanding how and why polymers are reoriented and manipulated under an AEF is essential for future growth in polymer-based electrochemical sensors. Examples of polymers that can be manipulated in an AEF for sensor applications are provided. Current methods of monitoring polymer reorientation will be described, but new techniques are needed to characterize polymer response to various AEF stimuli. The unique and reproducible stimuli response of polymers elicited by an AEF has significant potential for growth in the sensing community.

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Section: Electro-responsive Polymersmentioning

confidence: 99%

Review—Reorientation of Polymers in an Applied Electric Field for Electrochemical Sensors

LaFreniere

Roberge

Halpern

2020

J. Electrochem. Soc.

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“…Micro- and nanoporous materials have multiple applications: as dielectrics for ultrascaled CMOS nanodevices; ; for sensing applications; ; as sorbents for gas capture and storage; as electrodes for batteries and electrolyzers; for thermal insulation; as membranes for filtration, extraction, separation, and catalysis, i.e., among others for water recycling and CO 2 capture and/or storage. , The processing of porous materials, such as etching, polishing, and coating, is usually complex. The presence, on the nanometer scale, of chemically active radicals can modify the original porous structure and create residual contaminants that need to be removed afterward.…”

Section: Introductionmentioning

confidence: 99%

Use of a Thermally Degradable Chemical Vapor Deposited Polymer Film for Low Damage Plasma Processing of Highly Porous Dielectrics

Marneffe

Yamaguchi

Fujikawa

et al. 2019

ACS Appl. Electron. Mater.

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Nanoporous materials show a large surface area and co-continuous topology, leading to a high sensitivity to chemically active components over macroscopic length scales. The processing of nanoporous systems can be complex, causing modifications of the original material, or appearance of unwanted contaminants. The present work reports on a protection method based on temporary filling by a sacrificial template polymer, forming in situ a reversible urea linkage. Microporous organo-silicate low-k dielectric thin films are used as demonstrators, exposed to aggressive plasma discharges. Depending on the studied material, the fraction of filled pore volume varies between 29% and 66%, with a homogeneous spatial distribution. The filling component is formed by a blend of urea-linked polymer and isocyanate-terminated monomers, is stable during plasma processing, and can be fully removed by annealing above 300 °C. This sacrificial filler protects the internal structure of the porous dielectric from the plasma, reducing chemical damage and leading to better electrical characteristics.

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“…Nanopores and nano-voids inside thin films are usually undesirable due to the poor film quality, electrical insulation and dielectric performance. However, in recent decades materials with nanopores have a wide spectrum of applications, like, fuel cells, 1 photovoltaic cells, 2 Lithium ion batteries, 3 supercapacitors, 4 catalysis, 5 gas purification 6 and sensors 7 . In most of these applications, a precise size distribution of the nano-pores is required, which is generally fabricated by some extrinsic methods.…”

Section: Introductionmentioning

confidence: 99%

Modification of electrical properties of silicon dioxide through intrinsic nano-patterns

Majee

Barshilia

Banerjee

et al. 2018

Mater. Res. Express

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The inherent network of nanopores and voids in silicon dioxide (SiO 2 ) is generally undesirable for aspects of film quality, electrical insulation and dielectric performance. However, if we view these pores as natural nano-patterns embedded in a dielectric matrix then that opens up new vistas for exploration. The nano-pattern platform can be used to tailor electrical, optical, magnetic and mechanical properties of the carrier film. In this article we report the tunable electrical properties of thermal SiO 2 thin-film achieved through utilization of the metal-nanopore network where the pores are filled with metallic Titanium (Ti). Without any intentional chemical doping, we have shown that the electrical resistivity of the oxide film can be controlled through physical filling up of the intrinsic oxide nanopores with Ti. The electrical resistance of the composite film remains constant even after complete removal of the metal from the film surface except the pores. Careful morphological, electrical and structural analyses are carried out to establish that the presence of Ti in the nanopores play a crucial role in the observed conductive nature of the nanoporous film.

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Synthesis, Characterization, and Applications of Nanoporous Materials for Sensing and Separation

Cited by 6 publications

References 75 publications

Review—Reorientation of Polymers in an Applied Electric Field for Electrochemical Sensors

Review—Reorientation of Polymers in an Applied Electric Field for Electrochemical Sensors

Use of a Thermally Degradable Chemical Vapor Deposited Polymer Film for Low Damage Plasma Processing of Highly Porous Dielectrics

Modification of electrical properties of silicon dioxide through intrinsic nano-patterns

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