Improvement of Toluene-Sensing Performance of SnO2 Nanofibers by Pt Functionalization

Kim, Jae‐Hun; Abideen, Zain Ul; Yong, Zheng; Kim, Sang Sub

doi:10.3390/s16111857

Cited by 24 publications

(11 citation statements)

References 46 publications

(58 reference statements)

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“…Noble metals have been widely used as an effective and robust additive to enhance the gas sensing performance due to the electronic and chemical sensitization, [ 178 ] such as, Au, [ 125,208,209,211–213,253–255 ] Ag, [ 60,214 , 219 , 215,256–260 ] Cu, [ 217,255,260,261 ] Pt, [ 2,88,218,219,250,262–266 ] and Pd [ 80,221,222,267–269 ] to name a few. These noble metals have been used as dopants of primary sensing materials, decorated nanoparticles, and catalysts for modulation of the electrical, chemical, and sensing properties of MOS sensing materials.…”

Section: Strategies For Enhancement Of Gas Sensing Performancementioning

confidence: 99%

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

Yang

Myung

Tran

2021

Adv Elect Materials

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: Strategies For Enhancement Of Gas Sensing Performancementioning

confidence: 99%

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

Yang

Myung

Tran

2021

Adv Elect Materials

133

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“…More and more people are very enthusiastic about fabricating 1D nanostructures in the forms of nanowires, nanotubes, nanobelts, nanorods, nanofibers, nanobundles, etc. [ 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 ]. These 1D nanomaterials with enhanced gas-sensing properties are suitable for gas sensors.…”

Section: Different Morphologies Of Nanomaterials For Gas-sensing Pmentioning

confidence: 99%

The Morphologies of the Semiconductor Oxides and Their Gas-Sensing Properties

Lin

et al. 2017

Sensors

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Semiconductor oxide chemoresistive gas sensors are widely used for detecting deleterious gases due to low cost, simple preparation, rapid response and high sensitivity. The performance of gas sensor is greatly affected by the morphology of the semiconductor oxide. There are many semiconductor oxide morphologies, including zero-dimensional, one-dimensional, two-dimensional and three-dimensional ones. The semiconductor oxides with different morphologies significantly enhance the gas-sensing performance. Among the various morphologies, hollow nanostructures and core-shell nanostructures are always the focus of research in the field of gas sensors due to their distinctive structural characteristics and superior performance. Herein the morphologies of semiconductor oxides and their gas-sensing properties are reviewed. This review also proposes a potential strategy for the enhancement of gas-sensing performance in the future.

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“…To overcome this problem, the nanomaterials can be loaded onto the surface of the fibers either after electrospinning or after sintering the as-spun fibers, i.e., routes 3 and 4 in Figure 7. This approach however adds complexity and costs as it introduces an additional process step (e.g., sputtering, ALD) for which dedicated equipment is required [150,151].…”

Section: Functionalization Of 1d Metal Oxide Nanostructuresmentioning

confidence: 99%

One-Dimensional Metal Oxide Nanostructures for Chemical Sensors

Hontañón¹,

Vallejos²

2022

21st Century Nanostructured Materials - Physics, Chemistry, Classification, and Emerging Applications in Industry, Biomedicine,

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The fabrication of chemical sensors based on one-dimensional (1D) metal oxide semiconductor (MOS) nanostructures with tailored geometries has rapidly advanced in the last two decades. Chemical sensitive 1D MOS nanostructures are usually configured as resistors whose conduction is altered by a charge-transfer process or as field-effect transistors (FET) whose properties are controlled by applying appropriate potentials to the gate. This chapter reviews the state-of-the-art research on chemical sensors based on 1D MOS nanostructures of the resistive and FET types. The chapter begins with a survey of the MOS and their 1D nanostructures with the greatest potential for use in the next generation of chemical sensors, which will be of very small size, low-power consumption, low-cost, and superior sensing performance compared to present chemical sensors on the market. There follows a description of the 1D MOS nanostructures, including composite and hybrid structures, and their synthesis techniques. And subsequently a presentation of the architectures of the current resistive and FET sensors, and the methods to integrate the 1D MOS nanostructures into them on a large scale and in a cost-effective manner. The chapter concludes with an outlook of the challenges facing the chemical sensors based on 1D MOS nanostructures if their massive use in sensor networks becomes a reality.

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Improvement of Toluene-Sensing Performance of SnO2 Nanofibers by Pt Functionalization

Cited by 24 publications

References 46 publications

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

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

The Morphologies of the Semiconductor Oxides and Their Gas-Sensing Properties

One-Dimensional Metal Oxide Nanostructures for Chemical Sensors

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