Approaches for selectivity improvement of conductometric gas sensors: an overview

Li, Jing; Zhao, Hongchao; Wang, Yanjie; Zhou, Yong

doi:10.1039/d3sd00226h

Cited by 14 publications

(1 citation statement)

References 172 publications

(218 reference statements)

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“…The electrode material can be chosen depending on various factors such as a low background current, versatile potential window, chemical inertness, low cost, etc. In view of the technological aspect, the electrochemical sensing based on the above-mentioned three analytical techniques are very efficient because of some key factors: a simple employable technique, with low interface from the matrix, rapid sampling (as these are easily automated), works on a small volume, low cost, etc. − Accordingly, Table summarizes the comparison among the three electroanalytical techniques for a coherent understanding. Potentiometric, amperometric, and conductometric sensors have their own advantages and disadvantages.…”

Section: Important Aspects Of Electrochemical Sensorsmentioning

confidence: 99%

Metal–Organic Coordination Polymers: A Review of Electrochemical Sensing of Environmental Pollutants

Debsharma,

Dutta,

Dey

et al. 2024

Crystal Growth & Design

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Environmental contamination has been a notorious danger to mankind. Fast development, modern industrialization, change in lifestyle of the masses, and incomplete knowledge about material safety data sheets (MSDS) of every material/chemical discharged cause degradation of the environment. To monitor and control of such pollution, there is an urgent requirement for innovative methods for identification, classification, and quantification of the pollutants with excellent performance (like high selectivity, high sensitivity, fast response time, and reliability). Among several analytical sensing techniques, an electrochemical method of detection, using metal−organic frameworks (MOFs) as the sensing platform for trace quantity recognition of ecological analytes, grabs most of the attention due to its very high sensitivity, nonspecific way of measurement (absorption/fluorescence are very specific), both redox noninnocent and innocent analytes could be determined, quick response time, use of single instrument for different measurements, etc. MOFs are porous coordination polymers (CPs) formed by coordination of metal nodes/clusters and multitopic organic linkers as ligands. Due to their large surface area, permanent porosity, abundant microcrystalline structures and ease of the tailoring, postsynthetic modification properties of MOFs have made them advantageous for storage, catalysis, sensing, separation, and biological applications. On combining with small biomolecules, organic dyes, nanoparticles, nanowires, nanofibers, etc., composite MOFs have better mechanical stability, catalytic performance, conductivity, and sensing application. This review is focused on the recent attention of the electrochemical sensing applications of MOFs and their composites. Electrochemical sensors are an economical and suitable technique for the detection of different analytes and are extensively utilized in agriculture, food, oil, dyes and pigments, pharmaceutical industries, and biomedical applications. Herein, we have highlighted the use of MOFs in the sensing of different environmental contaminants i.e., volatile organic compounds (VOCs), phenolic compounds, heavy metal ions, antibiotics, pesticides, hydrazine, nitrite, nitroaromatic compounds, etc. This Review covers the publications from 2000 to 2024 (January), and we are confident that this review will enable new inspiration to exploit MOFs-based advanced electrochemical sensing properties in the future.

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Section: Important Aspects Of Electrochemical Sensorsmentioning

confidence: 99%

Metal–Organic Coordination Polymers: A Review of Electrochemical Sensing of Environmental Pollutants

Debsharma,

Dutta,

Dey

et al. 2024

Crystal Growth & Design

View full text Add to dashboard Cite

show abstract

Detection Strategies for Volatile Fragrance Released from Agricultural Products: Progress and Prospects

Wang,

Zhou,

2024

Advanced Sensor Research

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The volatile aroma released from agricultural products is closely related to the health status and quality of their growth, thus endowing the related detection with great significance. For example, the dynamic variation of the volatile chemical composition of a banana during the growth process can reflect its ripeness. Also important for quality monitoring and storage is to precisely and swiftly identify volatile compounds produced by mildew in rice and wheat. In this endeavor, the current detection technologies such as gas chromatography‐mass spectrometry method (GC‐MS) cannot meet the pressing needs of smart agriculture in terms of real‐time monitoring, cost‐effectiveness, sensitivity, and detection speed, thereby necessitating alternative strategies to simultaneously satisfy these requirements. Aiming to provide an overall development trend in this field, this paper summarizes the existing detection technologies including GC‐MS, E‐nose, and sensory analysis with their respective shortcomings and challenges, and then proposes the application prospects. This work can effectively enrich the reliable monitoring methods for volatile agricultural fragrance while promoting the long‐run development of smart agriculture.

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Chemiresistive sensor array for quantitative prediction of CO and NO2 gas concentrations in their mixture using machine learning algorithms

Naganaboina,

Jana,

Singh

2024

Microchim Acta

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Approaches for selectivity improvement of conductometric gas sensors: an overview

Abstract: Conductometric gas sensors (CGS) have been extensively explored in recent decades owing to easy fabrication and miniaturization, low cost and distributable detectability. Among numerous performance parameters, selectivity is a critical...

Cited by 14 publications

References 172 publications

Metal–Organic Coordination Polymers: A Review of Electrochemical Sensing of Environmental Pollutants

Metal–Organic Coordination Polymers: A Review of Electrochemical Sensing of Environmental Pollutants

Detection Strategies for Volatile Fragrance Released from Agricultural Products: Progress and Prospects

Chemiresistive sensor array for quantitative prediction of CO and NO2 gas concentrations in their mixture using machine learning algorithms

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