Chemiresistive sensor arrays for detection of air pollutants based on carbon nanotubes functionalized with porphyrin and phthalocyanine derivatives

Su, Heng; Tran, Thien-Toan; Bosze, Wayne; Myung, Nosang V.

doi:10.1016/j.snr.2020.100011

Cited by 16 publications

(17 citation statements)

References 26 publications

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“…Although 1D nanostructure MOS‐based sensing materials have promoted gas sensor development efforts leading to expansion of the gas sensor market, some gas sensor applications with large potential economic impact such as food quality industry, [ 339–341 ] medical and clinical applications, [ 342–346 ] and high accuracy environmental monitoring [ 347–349 ] still require enhanced sensing performance such as, higher sensitivity. Furthermore, these applications require detection of specific analyte combinations at minute concentrations in complex samples with ultra‐high accuracy and reproducibility.…”

Section: Electronic Nose Based On Metal Oxide Semiconductor 1d Nanostructuresmentioning

confidence: 99%

1D Metal Oxide Semiconductor Materials for Chemiresistive Gas Sensors: A Review

Yang

Myung

Tran

2021

Adv Elect Materials

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133

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While numerous types of gas sensors have been developed for various industries and applications such as the automotive industry, environmental monitoring, and personal safety, nanoscale chemiresistive gas sensors have gained significant research interest due to several advantages such as high sensitivity, low power consumption, and portability. An essential component of these gas sensors is the sensing material where metal oxide semiconductor (MOS) materials are the most prevalent sensing material. Since the adoption of nanoscale synthesis methods for sensing materials development, such as electrospinning and hydrothermal synthesis, many novel 1D MOS‐based nanostructured sensing materials have been demonstrated to enhance gas sensing performance. Overall, nanoengineering approaches and mechanisms for enhancement of gas sensing performance of 1D metal oxide‐based sensing materials are systematically discussed and categorized into several overarching strategies, such as tuning of materials dimension, morphology, and composition. Furthermore, integration of 1D sensing nanomaterials into sensor devices are discussed from the perspective of different chemiresistive sensor architectures and device fabrication methods. Finally, this review also discusses use of 1D MOS materials for emerging and novel electronic nose applications.

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Section: Electronic Nose Based On Metal Oxide Semiconductor 1d Nanostructuresmentioning

confidence: 99%

1D Metal Oxide Semiconductor Materials for Chemiresistive Gas Sensors: A Review

Yang

Myung

Tran

2021

Adv Elect Materials

Self Cite

133

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“…[39] Su et al used porphyrin derivatives functionalized on carbon nanotubes for monitoring air pollutants such as NO 2 and SO 2 as seen in Figure 7B. [63] Porphyrins have a macrocyclic structure with four pyrroles group linked via methane groups. The compound can bind different analytes via hydrogen bonding, electrostatic interaction, and molecular bonding via Van Der Waals force due to its stable structure.…”

Section: Nitrogen Oxide Monitoringmentioning

confidence: 99%

“…However, the sensing material is sensitive to light and its response to the different target analytes changes with the intensity of light. [63] Jiang et al designed an array for monitoring different VOCs such as alcohols, ketones, alkanes, and different nitrogen-based compounds, and the response was extracted using PCA. [56] The sensor array possesses four individual elements that include PEDOT:PSS nanowires modified with 3-aminopropyl groups, 3-bromopropyl groups, perfluorooctyl groups, and octadecyl groups, and the whole system was smaller than a dollar coin as shown in Figure 7C.…”

Section: Nitrogen Oxide Monitoringmentioning

confidence: 99%

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Chemiresistive Sensor Arrays for Gas/Volatile Organic Compounds Monitoring: A Review

et al. 2022

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Gas detection and monitoring are essential due to their direct impact on human health, environment, and ecosystem. Chemiresistive sensors are one of the most used classes of sensors for monitoring and measurement of gases thanks to their ease of fabrication, customizability, mechanical flexibility, and fast response time. While chemiresistive sensors can offer good sensitivity and selectivity to a particular gas in a controlled environment with known interferences, they may not be able to differentiate between various gases having similar physiochemical properties under uncontrolled conditions. To address this shortcoming of chemiresistive gas sensors, sensor arrays have been the subject of recent studies. Gas sensor arrays are a group of individual gas sensors that are arranged to simultaneously detect and differentiate multiple cross‐reactive gases. In this regard, various sensor array technologies have been developed to differentiate a given set of gases using multivariate algorithms. This review provides an insight into the different algorithms that are used to extract the data from the sensor arrays, highlighting the fabrication techniques used for developing the sensor array prototypes, and different applications in which these arrays are used.

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“…At a normal temperature, functionalized CNT exhibits a superior sensing performance to virgin samples and a strong sensitivity toward several chemicals, including benzene [ 207 ]. The detection of environmental air pollutants is one of the prominent directions where carbon nanotubes have been extensively applied [ 208 ].…”

Section: Applicationsmentioning

confidence: 99%

Nanotube Functionalization: Investigation, Methods and Demonstrated Applications

2022

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This review presents an update on nanotube functionalization, including an investigation of their methods and applications. The review starts with the discussion of microscopy and spectroscopy investigations of functionalized carbon nanotubes (CNTs). The results of transmission electron microscopy and scanning tunnelling microscopy, X-ray photoelectron spectroscopy, infrared spectroscopy, Raman spectroscopy and resistivity measurements are summarized. The update on the methods of the functionalization of CNTs, such as covalent and non-covalent modification or the substitution of carbon atoms, is presented. The demonstrated applications of functionalized CNTs in nanoelectronics, composites, electrochemical energy storage, electrode materials, sensors and biomedicine are discussed.

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Chemiresistive sensor arrays for detection of air pollutants based on carbon nanotubes functionalized with porphyrin and phthalocyanine derivatives

Cited by 16 publications

References 26 publications

1D Metal Oxide Semiconductor Materials for Chemiresistive Gas Sensors: A Review

1D Metal Oxide Semiconductor Materials for Chemiresistive Gas Sensors: A Review

Chemiresistive Sensor Arrays for Gas/Volatile Organic Compounds Monitoring: A Review

Nanotube Functionalization: Investigation, Methods and Demonstrated Applications

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