Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

Souissi, R.; Bouricha, B.; Bouguila, N.; Mır, L. El; Labidi, A.; Abderrabba, Manef

doi:10.1039/d3ra03042c

Cited by 6 publications

(7 citation statements)

References 44 publications

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“…573 KOH has also been used in the synthesis of nanocomposites. 574,575 Other small molecules associated with journal publications are toxic gases such as carbon dioxide 576,577 and sulfur dioxide 578,579 and isopropanol, [580][581][582][583] a volatile organic compound, detected using nanosensors.…”

Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

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Since their inception in the early 1960s, the use of nanoscale materials has progressed in leaps and bounds, and their role in diverse fields ranging from human health to energy is undeniable. In this report, we utilize the CAS Content Collection, a vast repository of scientific information extracted from journal and patent publications, to identify emerging topics in this field. This involves understanding trends, such as the growth of certain topics over time, as well as establishing relationships between emerging topics. We achieved this by using a host of strategies including a quantitative natural language processing (NLP) approach to identify 279 emerging topics and sub-topics across three major categories – materials, applications, and properties – by surveying roughly 3 million publications in the nanoscience landscape. This wealth of information has been condensed into several conceptual mind maps and other graphs that provide metrics related to the growth of identified emerging concepts, group them into hierarchical classes, and explore the connections between them. We delved deeper into four major emerging applications of nanoscale materials – drug delivery, sensors, energy, and catalysis – to provide a more comprehensive and detailed picture of the use of nanotechnology in these fields. In addition, we leveraged the CAS registry, consisting of over 250 million substances, to determine and discover substances across varied classes (such as polymers, elements, organic/inorganic molecules) and how they are utilized in the 4 major applications. Our extensive analysis taking advantage of an NLP-based approach along with robust CAS indexing provides valuable insights in the field that we hope can help to inform and drive future research efforts.

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Section: Institute Of Science and Technology (Kist)mentioning

confidence: 99%

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Hughes,

Ganesan,

Tenchov

et al. 2024

Preprint

View full text Add to dashboard Cite

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“…In prior research, 48 we established computer code aimed at incorporating novel aspects of the sensor's real-time transient response. Within this section, our focus lies solely on the reactions observed at 350 °C for all analyzed VOCs.…”

Section: Features Emerged From the Transient Responsesmentioning

confidence: 99%

“…By assembling a dataset derived from a vector matrix comprising two classes, we can calculate the between-class scatter matrix S B and the withinclass scatter matrix S W using eqn ( 14) and ( 18) respectively. [45][46][47][48][49][50]…”

Section: Features Emerged From the Transient Responsesmentioning

confidence: 99%

Isopropanol sensor based on sprayed In₂S₃ thin film using linear discriminant analysis for real-time selectivity

Souissi,

Bouricha,

Ihzaz

et al. 2024

RSC Adv.

Self Cite

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“…Moreover, MOS sensors, renowned for their simple structure, low power consumption, and heightened sensitivity, have made significant progress in the rapid and convenient detection of VOCs, which are ubiquitous in various aspects of human existence. Once their concentration exceeds a certain threshold, they can pose severe health hazards and even endanger lives [ 18 , 19 , 20 ]. As one of the most critical n-type semiconductors with high electron mobility, ZnO has been widely utilized in gas-sensing applications since the 1960s [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Gas-Sensing Properties and Mechanisms of 3D Networks Composed of ZnO Tetrapod Micro-Nano Structures at Room Temperature

Hu,

Ma,

Zhou

et al. 2023

Materials

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Metal oxide semiconductors (MOSs) hold great promise for electronic devices such as gas sensors. The utilization of ZnO as a conductometric gas sensor material can be traced back to its early stages; however, its application has primarily been limited to high-temperature environments. A gas sensor based on highly porous and interconnected 3D networks of ZnO tetrapod (ZnO-T) micro-nano structures was fabricated via an easy chemical vapor deposition (CVD) method. Homemade instruments were utilized to evaluate the gas-sensing of the sample at room temperature. It exhibited good gas-sensing at room temperature, particularly with a response of up to 338.80% toward 1600 ppm ethanol, while also demonstrating remarkable repeatability, stability, and selectivity. Moreover, the unique gas-sensing properties of ZnO-T at room temperature can be reasonably explained by considering the effect of van der Waals forces in physical adsorption and the synergistic effect of carrier concentration and mobility. The aforementioned statement presents an opportunity for the advancement of gas sensors utilizing ZnO at room temperature.

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Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

Abstract: This work reports on the integration of ZnO pellets for use as a virtual sensor array (VSA) of volatile organic compounds (VOCs).

Cited by 6 publications

References 44 publications

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Isopropanol sensor based on sprayed In₂S₃ thin film using linear discriminant analysis for real-time selectivity

Gas-Sensing Properties and Mechanisms of 3D Networks Composed of ZnO Tetrapod Micro-Nano Structures at Room Temperature

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Chemical VOC sensing mechanism of sol–gel ZnO pellets and linear discriminant analysis for instantaneous selectivity

Abstract: This work reports on the integration of ZnO pellets for use as a virtual sensor array (VSA) of volatile organic compounds (VOCs).

Cited by 6 publications

References 44 publications

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Nanoscale materials at work: Mapping emerging applications in energy, medicine, and beyond

Isopropanol sensor based on sprayed In2S3 thin film using linear discriminant analysis for real-time selectivity

Gas-Sensing Properties and Mechanisms of 3D Networks Composed of ZnO Tetrapod Micro-Nano Structures at Room Temperature

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Isopropanol sensor based on sprayed In₂S₃ thin film using linear discriminant analysis for real-time selectivity