Related references
Note: Only part of the references are listed.
Article
Chemistry, Analytical
Kun Duan et al.
Summary: In this study, a mid-infrared fiber-coupled laser absorption sensor was developed for the in situ and simultaneous detection of NH3 and NO in flue gas. The sensor exhibits low detection limits and good performance, with negligible spectral interferences under typical flue gas conditions.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Ceramics
Zong-Mu Dong et al.
Summary: A novel composite of hollow SnO2/ZnO cubes was prepared using a self-template hydrothermal method and a calcination process. The morphology and structure of the composites were characterized, and the formation mechanism of the hollow cube-like structure was explored. The hollow SnO2/ZnO cube sensor exhibited a strong response, fast response/recovery time, good linearity, repeatability, and stability, attributed to the combined advantages of hollow structures and heterojunctions.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Kedhareswara Sairam Pasupuleti et al.
Summary: In this study, a boron-doped graphitic carbon nitride quantum dots coated langasite surface acoustic wave sensor was developed for room temperature NO2 gas detection. UV activation energy was applied to enhance the NO2 sensing. This work provides insights into the design and development of 2D graphitic carbon nitride nanostructure-based room temperature gas sensors for environmental monitoring.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Polymer Science
Yin-Hsuan Chang et al.
Summary: Human breath contains water, oxygen, carbon dioxide, and gases related to metabolism. A highly sensitive sensing material (WO3/SnO2/Ag/PMMA) fabricated by electrospinning is proposed to detect breath acetone. The material exhibits a sensing limit of 20 ppm and shows specificity for acetone even in ambient humidity.
Article
Crystallography
Majid Zarei et al.
Summary: In this paper, a palladium-coated nano-grating-based plasmonic hydrogen gas sensor was designed, optimized, and fabricated. The effects of hydrogen gas exposure on the mechano-optical properties of the sensing layer were investigated using finite-difference time-domain method and experimental spectral reflectance measurements. The sensor demonstrated high sensitivity with visual color change detection even for the smallest hydrogen concentrations.
Article
Chemistry, Multidisciplinary
Dominik Baier et al.
Summary: Mesoporous copper-ceria (Cu-CeO2) materials with large specific surface areas and uniform porosity are prepared using nanocasting method, and their textural properties are characterized. The oxidation states of copper (Cu+, Cu2+) and cerium (Ce3+, Ce4+) are investigated, which shows that copper is a necessary component. These materials are used as resistive gas sensors and can discriminate between hydrogen (H2) and carbon monoxide (CO) with low cross-sensitivity to humidity. By measuring both gases simultaneously, selective sensing of CO in the presence of H2 can be realized.
Review
Chemistry, Inorganic & Nuclear
Yong Zhao et al.
Summary: Most VOCs are harmful to human health and the environment, thus the need for their detection and identification in both indoor and outdoor environments is urgent. Fiber optic sensors offer new approaches to overcome the limitations of conventional gas sensing systems, as they are intrinsically safe, portable, immune to electromagnetic interference, and easy to use for remote sensing and multiplexing. This review assesses recent advances in fiber optic VOC gas sensors, including sensing principles, gas-responsive materials, sensing material deposition techniques, structures, and applications.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Chemistry, Analytical
Marek Vidis et al.
Summary: This study examines the coexistence of hydrogen gas sensing and resistive switching in a single device, investigates the influence of the forming process on the sensor's response to hydrogen, and proposes an equivalent device model based on experimental data. The built-in memory operation, triggering the resistive switch by a change of the hydrogen gas concentration, is successfully demonstrated for various devices at different temperatures and humidity levels.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Engineering, Electrical & Electronic
Xiaoying Kang et al.
Summary: This review introduces the sensing mechanism of tin dioxide (SnO2) sensors and various methods to improve the gas sensing performance, including changing morphology and structure, doping, dynamic response, and sensor arrays. Composite sensors can significantly enhance detection performance of toxic and harmful gases.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Physical
Gaoliang Chen et al.
Summary: Y Molybdenum disulfide (MoS2) nanosheets were prepared using the liquid phase ultrasonic separation method for detecting formic acid gas. The nanosheets were coated on the surface of an optical fiber structure using the drip coating method, allowing for detection of formic acid gas concentration at room temperature with good selectivity and response characteristics. This passive optical fiber probe shows promising potential for application in medical and industrial processes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Jin Li et al.
Summary: This paper successfully developed two optical fiber gas sensors and achieved the detection of formic acid gas at room temperature. The limit of detection for the chitosan material modified probe can reach 1 ppm. The combination of molybdenum disulfide nanosheets and chitosan effectively improves sensor response and recovery time. The gas-sensitivity characteristics of the two sensors have been studied, compared, and discussed, verifying good selectivity and repeatability.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Jinlei Wang et al.
Summary: This paper optimizes the performance of high-precision infrared gas sensor arrays by using co-training MLPNN and reduces calibration costs. The experimental results show that the proposed method achieves high prediction accuracy for gas concentrations. The method effectively utilizes unlabeled gas data, reduces errors, and has stable performance and high calibration cost benefits.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Electrical & Electronic
Ajay Kumar et al.
Summary: This critical review presents the key acoustic device technologies used for gas sensing applications, including quartz crystal microbalance, Film bulk acoustic wave resonators, and surface acoustic wave resonators, with discussions on their working principles, materials selection, operation, and recent advancements in design, structures, and working mechanisms.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Review
Engineering, Electrical & Electronic
A. K. Pathak et al.
Summary: This article reviews the recent progress in VOC monitoring using optical fiber-based sensors. Optical fiber sensors offer high sensitivity and wide application range, enabling real-time monitoring and detection of VOCs, which is crucial for maintaining a safe and healthy environment.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Spectroscopy
Yafei Li et al.
Summary: In this study, a mid-infrared carbon monoxide (CO) and carbon dioxide (CO2) dual-gas sensor system was developed for early fire detection and location. The performance of the sensor system was evaluated through experiments, and a method of early fire detection using the concentration ratio between CO and CO2 as the key alarm parameter was proposed. Additionally, a mobile early fire location method was presented based on gas turbulent diffusion combined with particle swarm optimization.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Review
Engineering, Electrical & Electronic
Ziteng Li et al.
Summary: This review focuses on the application and performance of SnO2-based gas sensors in detecting VOC such as formaldehyde, ethanol, acetone, etc.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Electrical & Electronic
Ruka Wada et al.
Summary: This paper presents a method for enhancing MEMS-based acoustic sensors with a front-mounted parallel HR array, suitable for DP sensor-type elements. Experimental results show that the sensor with HRs has three times higher sensitivity at the resonant frequency, and achieves an acoustic pressure resolution of approximately 4 mPa.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Electrical & Electronic
S. Mousavi et al.
Summary: In this study, MIL-101(Cr)/CNT nanocomposite was used for the first time to detect VOCs at room temperature. The nanocomposite was characterized using various methods and its sensor performance was evaluated, showing good sensing behavior for this proposed new sensor.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Nanoscience & Nanotechnology
Xiaoxue Liu et al.
Summary: Gas sensors based on WS2/WO3 nanosheets with p-n heterojunctions were successfully fabricated through an in situ oxidation technique. The sensor exhibited excellent repeatability, selectivity, and long-term stability for acetone determination, with a higher sensitivity compared to pure WO3. This work provides a simple and flexible avenue to synthesize heterojunctions with high structural homogeneity for various applications.
ACS APPLIED NANO MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Ze Wang et al.
Summary: This article reviews the development history, performance index, device types, and common host materials of resistive gas sensors. It also summarizes the functions, functional mechanisms, features, and applications of various guest materials used for modifying and optimizing the host materials. The introduction of guest materials can effectively improve the sensitivity, selectivity, and stability of gas sensors. The perspectives and challenges of host-guest hybrid material-based gas sensors are also discussed.
Article
Chemistry, Analytical
Jin-Young Kim et al.
Summary: A resistive gas sensor decorated with palladium nanoparticles on a commercial soda-lime glass slide was studied for response and performance at different temperatures and gases, utilizing a new approach combining response values at different temperatures and support vector machine analysis. The system achieved perfect gas classification and accurate concentration estimation, demonstrating high selectivity and quantification ability.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Analytical
Yongshan Xu et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Polymer Science
Duy Linh Vu et al.
Article
Chemistry, Analytical
Ming-Chung Wu et al.
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Review
Chemistry, Multidisciplinary
Jingbin Zeng et al.
Review
Chemistry, Multidisciplinary
Bin Liu et al.
ENVIRONMENTAL SCIENCE-NANO
(2020)
Article
Engineering, Chemical
Duy Linh Vu et al.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2019)
Article
Nanoscience & Nanotechnology
Ming-Chung Wu et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
Review
Engineering, Electrical & Electronic
Hong-yang Zhou et al.
Article
Materials Science, Multidisciplinary
Yong Zhang et al.
Article
Engineering, Chemical
Ming-Chung Wu et al.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2017)
Review
Materials Science, Ceramics
A. Mirzaei et al.
CERAMICS INTERNATIONAL
(2016)
Article
Chemistry, Multidisciplinary
Arpan Kumar Nayak et al.
Article
Chemistry, Multidisciplinary
Lakshminarayana Polavarapu et al.
Review
Chemistry, Analytical
Shih-Wen Chiu et al.
