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Prabhu N, Shivamurthy B, Anandhan S, Rajendra BV, Basanna JC, Srivathsa M. An Investigation on the Acetone and Ethanol Vapor-Sensing Behavior of Sol-Gel Electrospun ZnO Nanofibers Using an Indigenous Setup. ACS OMEGA 2023; 8:49057-49066. [PMID: 38162738 PMCID: PMC10753564 DOI: 10.1021/acsomega.3c06744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024]
Abstract
The calibration is essential for accuracy, repeatability, and continuous trouble-free operation of gas sensors with safety. Most gas sensors are fabricated using metal oxide nanomaterials in different structures such as films, coating, or nanofibers. Therefore, a device in the sensor manufacturing industry is necessary to test, calibrate, and optimize metal oxide structures. In this point of view, a simple device is developed to test and estimate the sensing response, response time, and recovery time of nanostructures. The sol-gel method was used to produce nanofibers through electrospinning. An average fiber diameter of 245 nm was obtained after pyrolysis at 600 °C. The structure and composition of ZnO nanofibers are confirmed by X-ray diffraction, scanning electron microscopy, and Brunauer-Emmett-Teller. The trials were taken using ZnO nanofibers in the presence of acetone and ethanol vapor, and the results were reported. High response (31.74), rapid response (40 s), and recovery (30 s) times have been achieved for ethanol gas to 50 ppm concentration test gas at an optimal temperature of 260 °C. The results obtained from the trials are compared with the literature results, which are in line with the values presented by the various researchers. Due to the low cost, easy maintenance, and accuracy, this device is recommended in metal oxide sensor development industries and laboratories.
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Affiliation(s)
- Niranjan
N Prabhu
- Department
of Mechanical & Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Basavannadevaru Shivamurthy
- Department
of Mechanical & Industrial Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Srinivasan Anandhan
- Department
of Metallurgical and Materials Engineering, National Institute of Technology-Karnataka, Srinivas Nagar, Mangalore 575025, India
| | | | - Jagadeesh Chandra
Regati Basanna
- Department
of Electronics and Communication Engineering, Manipal Institute of
Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Manu Srivathsa
- Department
of Physics, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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2
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Kim S, Yang JE, Park YS, Park M, Kim SJ, Kim KK. Convergence Gas Sensors with One-Dimensional Nanotubes and Pt Nanoparticles Based on Ultraviolet Photonic Energy for Room-Temperature NO 2 Gas Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2780. [PMID: 37887931 PMCID: PMC10609275 DOI: 10.3390/nano13202780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/12/2023] [Accepted: 10/15/2023] [Indexed: 10/28/2023]
Abstract
Zinc oxide (ZnO) is a promising material for nitrogen dioxide (NO2) gas sensors because of its nontoxicity, low cost, and small size. We fabricated one-dimensional (1D) and zero-dimensional (0D) convergence gas sensors activated via ultraviolet (UV) photonic energy to sense NO2 gas at room temperature. One-dimensional ZnO nanorod (ZNR)-based and ZnO nanotube (ZNT)-based gas sensors were synthesized using a simple hydrothermal method. All the sensors were tested under UV irradiation (365 nm) so that they could be operated at room temperature rather than a high temperature. In addition, we decorated 0D Pt nanoparticles (NPs) on the gas sensors to further improve their sensing responsivity. The NO2-sensing response of the ZNT/Pt NP convergence gas sensor was 2.93 times higher than that of the ZNR gas sensor. We demonstrated the complex effects of UV radiation on 1D ZnO nanostructures and 0D metal nanostructures in NO2 gas sensing.
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Affiliation(s)
- Sohyeon Kim
- Department of IT Semiconductor Convergence Engineering, Research Institute of Advanced Convergence Technology, Tech University of Korea, Siheung 15073, Republic of Korea
| | - Ju-Eun Yang
- Department of IT Semiconductor Convergence Engineering, Research Institute of Advanced Convergence Technology, Tech University of Korea, Siheung 15073, Republic of Korea
| | - Yoon-Seo Park
- Department of IT Semiconductor Convergence Engineering, Research Institute of Advanced Convergence Technology, Tech University of Korea, Siheung 15073, Republic of Korea
| | - Minwoo Park
- Department of IT Semiconductor Convergence Engineering, Research Institute of Advanced Convergence Technology, Tech University of Korea, Siheung 15073, Republic of Korea
| | - Sang-Jo Kim
- School of Material Science and Engineering, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Kyoung-Kook Kim
- Department of IT Semiconductor Convergence Engineering, Research Institute of Advanced Convergence Technology, Tech University of Korea, Siheung 15073, Republic of Korea
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3
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Li S, Qu Y, Lu X, Zhang F, Liu S, Li B. A Gas Sensor with Enhanced Sensing Properties towards Butyl Acetate: Vascular Bundle Structure Zn 2 SnO 4 Derived from Maize Straw. Chem Asian J 2023; 18:e202300505. [PMID: 37458199 DOI: 10.1002/asia.202300505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/14/2023] [Indexed: 08/06/2023]
Abstract
The development of butyl acetate sensors with high sensitivity and selectivity has been highly desirable for its harmful effects on human health. In this work, we developed a high-performance butyl acetate sensor based on vascular bundle structure Zn2 SnO4 nanomaterial derived from maize straw. The vascular bundle structure Zn2 SnO4 with higher specific surface area obtained by calcination to remove the maize straw template, plays the dual role of accelerating the diffusion of gas molecules and providing more active sites. Our research showed that the sensor had a response of 18 to 100 ppm butyl acetate at a working temperature of 250 °C, with a fast response recovery rate (18 s/25 s), which showed significant improvement compared to the Zn2 SnO4 sensor prepared without templates. The improved performance can be attributed to the cross-linked nanoparticle chains and gas collision mechanism of the sensor. These findings highlight the potential of our sensor for the detection of butyl acetate gas.
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Affiliation(s)
- Siqi Li
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
| | - Yuan Qu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
| | - Xiang Lu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
| | - Feiyu Zhang
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
| | - Song Liu
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
| | - Bin Li
- College of Chemistry, Chemical Engineering and Resource Utilization, Key Laboratory of Forest Plant Ecology, Northeast Forestry University, 26 Hexing Road, Harbin, 150040, Heilongjiang, P. R. China
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4
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Park SJ, Moon YK, Park SW, Lee SM, Kim TH, Kim SY, Lee JH, Jo YM. Highly Sensitive and Selective Real-Time Breath Isoprene Detection using the Gas Reforming Reaction of MOF-Derived Nanoreactors. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7102-7111. [PMID: 36700612 DOI: 10.1021/acsami.2c20416] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Real-time breath isoprene sensing provides noninvasive methods for monitoring human metabolism and early diagnosis of cardiovascular diseases. Nonetheless, the stable alkene structure and high humidity of the breath hinder sensitive and selective isoprene detection. In this work, we derived well-defined Co3O4@polyoxometalate yolk-shell structures using a metal-organic framework template. The inner space, including highly catalytic Co3O4 yolks surrounded by a semipermeable polyoxometalate shell, enables stable isoprene to be reformed to reactive intermediate species by increasing the gas residence time and the reaction with the inner catalyst. This sensor exhibited selective isoprene detection with an extremely high chemiresistive response (180.6) and low detection limit (0.58 ppb). The high sensing performance can be attributed to electronic sensitization and catalytic promotion effects. In addition, the reforming reaction of isoprene is further confirmed by the proton transfer reaction-quadrupole mass spectrometry analysis. The practical feasibility of this sensor in smart healthcare applications is exhibited by monitoring muscle activity during the workout.
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Affiliation(s)
- Seon Ju Park
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Young Kook Moon
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Sei-Woong Park
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Soo Min Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Tae-Hyun Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Soo Young Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Young-Moo Jo
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
- Current address: Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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5
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Wang J, Cao Q, Cheng XF, Ye W, He JH, Lu JM. Moisture-Insensitive and Highly Selective Detection of NO 2 by Ion-in-Conjugation Covalent Organic Frameworks. ACS Sens 2022; 7:3782-3789. [PMID: 36384296 DOI: 10.1021/acssensors.2c01631] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
As a common toxic gas, nitrogen dioxide (NO2) seriously threatens the environment and human respiratory system even at part per billion (ppb) level. Covalent organic frameworks (COFs) have gained widespread attention in sensing applications because of the benefits of designability, environmental stability, and a large number of active sites. However, the competitive adsorption of water molecules and the target gas molecules at room temperature as well as the weak interaction between COFs and gas molecules hinder their practical applications. Here, we introduce ion-in-conjugation (IIC) into a covalent organic framework (COF) by preparing a condensate of squaraine (SA) with 1,3,5-tris(4-aminophenyl)benzene (TAPB) to form a mesoporous macrocyclic material (SA-TAPB). Layers of SA-TAPB, drop cast onto interdigitated Ag-Pd alloy electrodes, show a statistically significant conductivity response to NO2 at concentrations as low as 30 ppb and a theoretical detection limit of 10.9 ppb. The sensor displays a lower sensitivity to variations in humidity when operated at 80 °C compared to room temperature. The density functional theory (DFT) calculations indicated that the main adsorption site of NO2 is dual hydrogen bonds formed between two amide hydrogen atoms of SA-TAPB and the NO2 molecule. Gas adsorption experiments revealed that SA-TAPB has the largest adsorption capacity of NO2 versus other interference gases, which were responsible for the excellent selectivity toward NO2.
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Affiliation(s)
- Jia Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Mate-Rials, Soochow University, Suzhou215123, P. R. China
| | - Qiang Cao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Mate-Rials, Soochow University, Suzhou215123, P. R. China
| | - Xue-Feng Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Mate-Rials, Soochow University, Suzhou215123, P. R. China
| | - Wen Ye
- Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou215123, P. R. China
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Mate-Rials, Soochow University, Suzhou215123, P. R. China
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Mate-Rials, Soochow University, Suzhou215123, P. R. China
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6
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Kim T, Cho W, Kim B, Yeom J, Kwon YM, Baik JM, Kim JJ, Shin H. Batch Nanofabrication of Suspended Single 1D Nanoheaters for Ultralow-Power Metal Oxide Semiconductor-Based Gas Sensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204078. [PMID: 36180411 DOI: 10.1002/smll.202204078] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/05/2022] [Indexed: 06/16/2023]
Abstract
The demand for power-efficient micro-and nanodevices is increasing rapidly. In this regard, electrothermal nanowire-based heaters are promising solutions for the ultralow-power devices required in IoT applications. Herein, a method is demonstrated for producing a 1D nanoheater by selectively coating a suspended pyrolyzed carbon nanowire backbone with a thin Au resistive heater layer and utilizing it in a portable gas sensor system. This sophisticated nanostructure is developed without complex nanofabrication and nanoscale alignment processes, owing to the suspended architecture and built-in shadow mask. The suspended carbon nanowires, which are batch-fabricated using carbon-microelectromechanical systems technology, maintain their structural and functional integrity in subsequent nanopatterning processes because of their excellent mechanical robustness. The developed nanoheater is used in gas sensors via user-designable localization of the metal oxide semiconductor nanomaterials onto the central region of the nanoheater at the desired temperature. This allows the sensing site to be uniformly heated, enabling reliable and sensitive gas detection. The 1D nanoheater embedded gas sensor can be heated immediately to 250 °C at a remarkably low power of 1.6 mW, surpassing the performance of state-of-the-art microheater-based gas sensors. The presented technology offers facile 1D nanoheater production and promising pathways for applications in various electrothermal devices.
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Affiliation(s)
- Taejung Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Wootaek Cho
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Beomsang Kim
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Junyeong Yeom
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Yeong Min Kwon
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jeong Min Baik
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jae Joon Kim
- Department of Electrical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Heungjoo Shin
- Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
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7
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Tang Z, Wu S, Zhao P, Wang H, Ni D, Li H, Jiang X, Wu Y, Meng Y, Yao Z, Cai W, Bu W. Chemical Factory-Guaranteed Enhanced Chemodynamic Therapy for Orthotopic Liver Cancer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201232. [PMID: 35712774 PMCID: PMC9376848 DOI: 10.1002/advs.202201232] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 05/09/2022] [Indexed: 05/05/2023]
Abstract
In the field of nanomedicine, there is a tendency of matching designed nanomaterials with a suitable type of orthotopic cancer model, not just a casual subcutaneous one. Under this condition, knowing the specific features of the chosen cancer model is the priority, then introducing a proper therapy strategy using designed nanomaterials. Here, the Fenton chemistry is combined with zinc peroxide nanoparticles in the treatment of orthotopic liver cancer which has a "chemical factory" including that liver is the main place for iron storage, metabolism, and also the main metabolic sites for the majority of ingested substances, guaranteeing customized and enhanced chemodynamic therapy and normal liver cells protection as well. The good results in vitro and in vivo can set an inspiring example for exploring and utilizing suitable nanomaterials in corresponding cancer models, ensuring well-fitness of nanomaterials for disease and satisfactory therapeutic effect.
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Affiliation(s)
- Zhongmin Tang
- Tongji University Cancer CenterShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072P. R. China
- Departments of Radiology, Medical Physics, Materials Science & EngineeringPharmaceutical SciencesUniversity of Wisconsin − MadisonMadisonWI53705USA
| | - Shiman Wu
- Department of RadiologyHuashan HospitalFudan UniversityShanghai200040P. R. China
| | - Peiran Zhao
- Department of Materials Science and State Key Laboratory of Molecular Engineering of PolymersFudan University220 Handan RoadShanghai200438P. R. China
| | - Han Wang
- Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200240P. R. China
| | - Dalong Ni
- Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai200240P. R. China
| | - Huiyan Li
- Department of Materials Science and State Key Laboratory of Molecular Engineering of PolymersFudan University220 Handan RoadShanghai200438P. R. China
| | - Xingwu Jiang
- Department of Materials Science and State Key Laboratory of Molecular Engineering of PolymersFudan University220 Handan RoadShanghai200438P. R. China
| | - Yelin Wu
- Tongji University Cancer CenterShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072P. R. China
| | - Yun Meng
- Tongji University Cancer CenterShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072P. R. China
| | - Zhenwei Yao
- Department of RadiologyHuashan HospitalFudan UniversityShanghai200040P. R. China
| | - Weibo Cai
- Departments of Radiology, Medical Physics, Materials Science & EngineeringPharmaceutical SciencesUniversity of Wisconsin − MadisonMadisonWI53705USA
| | - Wenbo Bu
- Tongji University Cancer CenterShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072P. R. China
- Department of Materials Science and State Key Laboratory of Molecular Engineering of PolymersFudan University220 Handan RoadShanghai200438P. R. China
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8
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Ou Y, Zhu G, Liu P, Jia Y, Zhu L, Nie J, Zhang S, Zhang W, Gao J, Lu H, Huang Y, Shi X, Hojamberdiev M. Anchoring Platinum Clusters onto Oxygen Vacancy-Modified In 2O 3 for Ultraefficient, Low-Temperature, Highly Sensitive, and Stable Detection of Formaldehyde. ACS Sens 2022; 7:1201-1212. [PMID: 35362946 DOI: 10.1021/acssensors.2c00334] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
To avoid carcinogenicity, formaldehyde gas, currently being only detected at higher operating temperatures, should be selectively detected in time with ppb concentration sensitivity in a room-temperature indoor environment. This is achieved in this work through introducing oxygen vacancies and Pt clusters on the surface of In2O3 to reduce the optimal operating temperature from 120 to 40 °C. Previous studies have shown that only water participates in the competitive adsorption on the sensor surface. Here, we experimentally confirm that the adsorbed water on the fabricated sensor surface is consumed via a chemical reaction due to the strong interaction between the oxygen vacancies and Pt clusters. Therefore, the long-term stability of formaldehyde gas detection is improved. The results of theoretical calculations in this work reveal that the excellent formaldehyde gas detection of Pt/In2O3-x originates from the electron enrichment due to the surface oxygen vacancies and the molecular adsorption and activation ability of Pt clusters on the surface. The developed Pt/In2O3-x sensor has potential use in the ultraefficient, low-temperature, highly sensitive, and stable detection of indoor formaldehyde at an operating temperature as low as room temperature.
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Affiliation(s)
- Yucheng Ou
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Gangqiang Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Peng Liu
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Yanmin Jia
- School of Science, Xian University of Posts and Telecommunications, Xi’an 710121, P. R. China
| | - Lujun Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Junli Nie
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Shaolin Zhang
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, P. R. China
| | - Weibin Zhang
- Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, P. R. China
| | - Jianzhi Gao
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Hongbing Lu
- School of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Yu Huang
- State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, P. R. China
| | - Xianjin Shi
- State Key Lab of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710061, P. R. China
| | - Mirabbos Hojamberdiev
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623 Berlin, Germany
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Park SW, Jeong SY, Moon YK, Kim K, Yoon JW, Lee JH. Highly Selective and Sensitive Detection of Breath Isoprene by Tailored Gas Reforming: A Synergistic Combination of Macroporous WO 3 Spheres and Au Catalysts. ACS APPLIED MATERIALS & INTERFACES 2022; 14:11587-11596. [PMID: 35174700 DOI: 10.1021/acsami.1c19766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Precise detection of breath isoprene can provide valuable information for monitoring the physical and physiological status of human beings or for the early diagnosis of cardiovascular diseases. However, the extremely low concentration and low chemical reactivity of breath isoprene hamper the selective and sensitive detection of isoprene using oxide semiconductor chemiresistors. Herein, we report that macroporous WO3 microspheres whose inner macropores are surrounded by Au nanoparticles exhibit a high response (resistance ratio = 11.3) to 0.1 ppm isoprene under highly humid conditions at 275 °C and an extremely low detection limit (0.2 ppb). Furthermore, the sensor showed excellent selectivity to isoprene over five interferants that could be exhaled by humans. Notably, the selectivity to isoprene is critically dependent on the location of Au nanocatalysts and macroporosity. The mechanism underlying the selective isoprene detection is investigated in relation to the reforming of less reactive isoprene into more reactive intermediate species promoted by macroporous catalytic reactors, which is confirmed by the analysis using a proton transfer reaction quadrupole mass spectrometer. The sensor for breath analysis has high potential for simple physical and physiological monitoring as well as disease diagnosis.
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Affiliation(s)
- Sei-Woong Park
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Seong-Yong Jeong
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Young Kook Moon
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - KiBeom Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Ji-Wook Yoon
- Department of Information Materials Engineering, Division of Advanced Materials, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
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10
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Zhou T, Zhang T. Recent Progress of Nanostructured Sensing Materials from 0D to 3D: Overview of Structure-Property-Application Relationship for Gas Sensors. SMALL METHODS 2021; 5:e2100515. [PMID: 34928067 DOI: 10.1002/smtd.202100515] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/23/2021] [Indexed: 05/27/2023]
Abstract
Along with the progress of nanoscience and nanotechnology, nanomaterials with attractive structural and functional properties have gained more attention than ever before, especially in the field of electronic sensors. In recent years, the gas sensing devices have made great achievement and also created wide application prospects, which leads to a new wave of research for designing advanced sensing materials. There is no doubt that the characteristics are highly governed by the sensitive layers. For this reason, important advances for the outstanding, novel sensing materials with different dimensional structures including 0D, 1D, 2D, and 3D are reported and summarized systematically. The sensing materials cover noble metals, metal oxide semiconductors, carbon nanomaterials, metal dichalcogenides, g-C3 N4 , MXenes, and complex composites. Discussion is also extended to the relation between sensing performances and their structure, electronic properties, and surface chemistry. In addition, some gas sensing related applications are also highlighted, including environment monitoring, breath analysis, food quality and safety, and flexible wearable electronics, from current situation and the facing challenges to the future research perspectives.
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Affiliation(s)
- Tingting Zhou
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Tong Zhang
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
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11
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Geng X, Li S, Mawella-Vithanage L, Ma T, Kilani M, Wang B, Ma L, Hewa-Rahinduwage CC, Shafikova A, Nikolla E, Mao G, Brock SL, Zhang L, Luo L. Atomically dispersed Pb ionic sites in PbCdSe quantum dot gels enhance room-temperature NO 2 sensing. Nat Commun 2021; 12:4895. [PMID: 34385446 PMCID: PMC8361172 DOI: 10.1038/s41467-021-25192-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/28/2021] [Indexed: 12/17/2022] Open
Abstract
Atmospheric NO2 is of great concern due to its adverse effects on human health and the environment, motivating research on NO2 detection and remediation. Existing low-cost room-temperature NO2 sensors often suffer from low sensitivity at the ppb level or long recovery times, reflecting the trade-off between sensor response and recovery time. Here, we report an atomically dispersed metal ion strategy to address it. We discover that bimetallic PbCdSe quantum dot (QD) gels containing atomically dispersed Pb ionic sites achieve the optimal combination of strong sensor response and fast recovery, leading to a high-performance room-temperature p-type semiconductor NO2 sensor as characterized by a combination of ultra-low limit of detection, high sensitivity and stability, fast response and recovery. With the help of theoretical calculations, we reveal the high performance of the PbCdSe QD gel arises from the unique tuning effects of Pb ionic sites on NO2 binding at their neighboring Cd sites.
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Affiliation(s)
- Xin Geng
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | - Shuwei Li
- Center for Combustion Energy, Tsinghua University, Beijing, China
- School of Vehicle and Mobility, Tsinghua University, Beijing, China
- State Key Laboratory of Automotive Safety and Energy, Beijing, China
| | | | - Tao Ma
- Michigan Center for Materials Characterization, University of Michigan, Ann Arbor, MI, USA
| | - Mohamed Kilani
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, Australia
| | - Bingwen Wang
- Department of Chemical Engineering and Material Science, Wayne State University, Detroit, MI, USA
| | - Lu Ma
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | | | - Alina Shafikova
- Department of Chemistry, Wayne State University, Detroit, MI, USA
| | - Eranda Nikolla
- Department of Chemical Engineering and Material Science, Wayne State University, Detroit, MI, USA
| | - Guangzhao Mao
- School of Chemical Engineering, University of New South Wales, Sydney, NSW, Australia
| | | | - Liang Zhang
- Center for Combustion Energy, Tsinghua University, Beijing, China.
- School of Vehicle and Mobility, Tsinghua University, Beijing, China.
- State Key Laboratory of Automotive Safety and Energy, Beijing, China.
| | - Long Luo
- Department of Chemistry, Wayne State University, Detroit, MI, USA.
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12
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Moon YK, Jeong S, Jo Y, Jo YK, Kang YC, Lee J. Highly Selective Detection of Benzene and Discrimination of Volatile Aromatic Compounds Using Oxide Chemiresistors with Tunable Rh-TiO 2 Catalytic Overlayers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004078. [PMID: 33747750 PMCID: PMC7967053 DOI: 10.1002/advs.202004078] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/16/2020] [Indexed: 05/03/2023]
Abstract
Volatile aromatic compounds are major air pollutants, and their health impacts should be assessed accurately based on the concentration and composition of gas mixtures. Herein, novel bilayer sensors consisting of a SnO2 sensing layer and three different xRh-TiO2 catalytic overlayers (x = 0.5, 1, and 2 wt%) are designed for the new functionalities such as the selective detection, discrimination, and analysis of benzene, toluene, and p-xylene. The 2Rh-TiO2/SnO2 bilayer sensor shows a high selectivity and response toward ppm- and sub-ppm-levels of benzene over a wide range of sensing temperatures (325-425 °C). An array of 0.5Rh-, 1Rh-, and 2Rh-TiO2/SnO2 sensors exhibits discrimination and composition analyses of aromatic compounds. The conversion of gases into more active species at moderate catalytic activation and the complete oxidation of gases into non-reactive forms by excessive catalytic promotion are proposed as the reasons behind the enhancement and suppression of analyte gases, respectively. Analysis using proton transfer reaction-quadrupole mass spectrometer (PTR-QMS) is performed to verify the above proposals. Although the sensing characteristics exhibit mild moisture interference, bilayer sensors with systematic and tailored control of gas selectivity and response provide new pathways for monitoring aromatic air pollutants and evaluating their health impacts.
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Affiliation(s)
- Young Kook Moon
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Seong‐Yong Jeong
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Young‐Moo Jo
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Yong Kun Jo
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Jong‐Heun Lee
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
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13
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Cho D, Suh JM, Nam S, Park SY, Park M, Lee TH, Choi KS, Lee J, Ahn C, Jang HW, Shim Y, Jeon S. Optically Activated 3D Thin-Shell TiO 2 for Super-Sensitive Chemoresistive Responses: Toward Visible Light Activation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2001883. [PMID: 33552851 PMCID: PMC7856904 DOI: 10.1002/advs.202001883] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/13/2020] [Indexed: 05/28/2023]
Abstract
One of the well-known strategies for achieving high-performance light-activated gas sensors is to design a nanostructure for effective surface responses with its geometric advances. However, no study has gone beyond the benefits of the large surface area and provided fundamental strategies to offer a rational structure for increasing their optical and chemical performances. Here, a new class of UV-activated sensing nanoarchitecture made of highly periodic 3D TiO2, which facilitates 55 times enhanced light absorption by confining the incident light in the nanostructure, is prepared as an active gas channel. The key parameters, such as the total 3D TiO2 film and thin-shell thicknesses, are precisely optimized by finite element analysis. Collectively, this fundamental design leads to ultrahigh chemoresistive response to NO2 with a theoretical detection limit of ≈200 ppt. The demonstration of high responses with visible light illumination proposes a future perspective for light-activated gas sensors based on semiconducting oxides.
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Affiliation(s)
- Donghwi Cho
- Department of Materials Science and EngineeringCenter for Bio‐Integrated Electronics at the Simpson Querrey Institute for BioNanotechnologyNorthwestern UniversityEvanstonIL60208USA
| | - Jun Min Suh
- Department of Materials Science and EngineeringResearch Institute of Advanced MaterialsSeoul National UniversitySeoul08826Republic of Korea
| | - Sang‐Hyeon Nam
- Department of Materials Science and EngineeringKAIST Institute for the NanocenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
| | - Seo Yun Park
- Department of Materials Science and EngineeringResearch Institute of Advanced MaterialsSeoul National UniversitySeoul08826Republic of Korea
| | - Minsu Park
- Department of Materials Science and EngineeringKAIST Institute for the NanocenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
| | - Tae Hyung Lee
- Department of Materials Science and EngineeringResearch Institute of Advanced MaterialsSeoul National UniversitySeoul08826Republic of Korea
| | - Kyoung Soon Choi
- National research Facilities and Equipment Center (NFEC)Korea Basic Science Institute (KBSI)Daejeon34133Republic of Korea
| | - Jinho Lee
- Department of Materials Science and EngineeringKAIST Institute for the NanocenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
| | - Changui Ahn
- Engineering Ceramic CenterKorea Institute of Ceramic Engineering and TechnologyIcheon17303Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and EngineeringResearch Institute of Advanced MaterialsSeoul National UniversitySeoul08826Republic of Korea
| | - Young‐Seok Shim
- Division of Materials Science and EngineeringSilla UniversityBusan46958Republic of Korea
| | - Seokwoo Jeon
- Department of Materials Science and EngineeringKAIST Institute for the NanocenturyKorea Advanced Institute of Science and Technology (KAIST)Daejeon34141Republic of Korea
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14
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Kim J, Kweon H, Park HW, Go P, Hwang H, Lee J, Choi SJ, Kim DH. Interpenetrating Polymer Semiconductor Nanonetwork Channel for Ultrasensitive, Selective, and Fast Recovered Chemodetection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55107-55115. [PMID: 33253519 DOI: 10.1021/acsami.0c18549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organic semiconductor (OSC)-based gas detection has attracted considerable attention due to the facile manufacturing process and effective contact with target chemicals at room temperature. However, OSCs intrinsically suffer from inferior sensing and recovery capability due to lack of functional sites and deep gas penetration into the film. Here, we describe an interpenetrating polymer semiconductor nanonetwork (IPSN) channel possessing unreacted silanol (Si-OH) groups on its surface to overcome bottlenecks that come from OSC-based chemodetection. On the top of the IPSN, moreover, we introduced electron-donating amine (NH2) groups as a chemical receptor because they strongly interact with the electron-withdrawing nature of NO2 gas. The NH2-IPSN-based field-effect transistor exhibited high-performance chemodetection such as ultrasensitivity (990% ppm-1 at 5 ppm) and excellent NO2 selectivity against other toxic gases. Impressively, the gas recovery was significantly improved because the NH2 chemical receptors anchored on the surface of the IPSN suppress deep gas penetration into the film. This work demonstrates that our NO2 chemodetection is expected to provide inspiration and guideline for realization of practical gas sensors in various industries and daily life.
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Affiliation(s)
- Jaehee Kim
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Hyukmin Kweon
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Han Wool Park
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Pureunsan Go
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Haejung Hwang
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Joonseok Lee
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Seon-Jin Choi
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Do Hwan Kim
- Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
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15
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Cui H, Zheng K, Xie Z, Yu J, Zhu X, Ren H, Wang Z, Zhang F, Li X, Tao LQ, Zhang H, Chen X. Tellurene Nanoflake-Based NO 2 Sensors with Superior Sensitivity and a Sub-Parts-per-Billion Detection Limit. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47704-47713. [PMID: 33017141 DOI: 10.1021/acsami.0c15964] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Industrial production, environmental monitoring, and clinical medicine put forward urgent demands for high-performance gas sensors. Two-dimensional (2D) materials are regarded as promising gas-sensing materials owing to their large surface-to-volume ratio, high surface activity, and abundant surface-active sites. However, it is still challenging to achieve facilely prepared materials with high sensitivity, fast response, full recovery, and robustness in harsh environments for gas sensing. Here, a combination of experiments and density functional theory (DFT) calculations is performed to explore the application of tellurene in gas sensors. The prepared tellurene nanoflakes via facile liquid-phase exfoliation show an excellent response to NO2 (25 ppb, 201.8% and 150 ppb, 264.3%) and an ultralow theory detection limit (DL) of 0.214 ppb at room temperature, which is excellent compared to that of most reported 2D materials. Furthermore, tellurene sensors present a fast response (25 ppb, 83 s and 100 ppb, 26 s) and recovery (25 ppb, 458 s and 100 ppb, 290 s). The DFT calculations further clarify the reasons for enhanced electrical conductivity after NO2 adsorption because of the interfacial electron transfer from tellurene to NO2, revealing an underlying explanation for tellurene-based gas sensors. These results indicate that tellurene is eminently promising for detecting NO2 with superior sensitivity, favorable selectivity, an ultralow DL, fast response-recovery, and high stability.
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Affiliation(s)
- Heping Cui
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Kai Zheng
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Zhongjian Xie
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jiabing Yu
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Xiangyi Zhu
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Hao Ren
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Zeping Wang
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Feng Zhang
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Xiandong Li
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Lu-Qi Tao
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics, SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xianping Chen
- Key Laboratory of Optoelectronic Technology & Systems, Education Ministry of China, and College of Optoelectronic Engineering, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
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16
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Weber IC, Braun HP, Krumeich F, Güntner AT, Pratsinis SE. Superior Acetone Selectivity in Gas Mixtures by Catalyst-Filtered Chemoresistive Sensors. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2001503. [PMID: 33042762 PMCID: PMC7539217 DOI: 10.1002/advs.202001503] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/30/2020] [Indexed: 05/11/2023]
Abstract
Acetone is a toxic air pollutant and a key breath marker for non-invasively monitoring fat metabolism. Its routine detection in realistic gas mixtures (i.e., human breath and indoor air), however, is challenging, as low-cost acetone sensors suffer from insufficient selectivity. Here, a compact detector for acetone sensing is introduced, having unprecedented selectivity (>250) over the most challenging interferants (e.g., alcohols, aldehydes, aromatics, isoprene, ammonia, H2, and CO). That way, acetone is quantified with fast response (<1 min) down to, at least, 50 parts per billion (ppb) in gas mixtures with such interferants having up to two orders of magnitude higher concentration than acetone at realistic relative humidities (RH = 30-90%). The detector consists of a catalytic packed bed (30 mg) of flame-made Al2O3 nanoparticles (120 m2 g-1) decorated with Pt nanoclusters (average size 9 nm) and a highly sensitive chemo-resistive sensor made by flame aerosol deposition and in situ annealing of nanostructured Si-doped ε-WO3 (Si/WO3). Most importantly, the catalytic packed bed converts interferants continuously enabling highly selective acetone sensing even in the exhaled breath of a volunteer. The detector exhibits stable performance over, at least, 145 days at 90% RH, as validated by mass spectrometry.
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Affiliation(s)
- Ines C. Weber
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Hugo P. Braun
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Frank Krumeich
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Andreas T. Güntner
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
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17
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Zhou S, Lu Q, Chen M, Li B, Wei H, Zi B, Zeng J, Zhang Y, Zhang J, Zhu Z, Liu Q. Platinum-Supported Cerium-Doped Indium Oxide for Highly Sensitive Triethylamine Gas Sensing with Good Antihumidity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:42962-42970. [PMID: 32875790 DOI: 10.1021/acsami.0c12363] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Triethylamine is extremely harmful to human health, and chronic inhalation can lead to respiratory and hematological diseases and eye lesions. Hence, it is essential to develop a triethylamine gas-sensing technology with high response, selectivity, and stability for use in healthcare and environmental monitoring. In this work, a simple and low-cost sensor based on the Pt- and Ce-modified In2O3 hollow structure to selectively detect triethylamine is developed. The experimental results reveal that the sensor based on 1% Pt/Ce12In exhibits excellent triethylamine-sensing performance, including its insusceptibility to water, reduced operating temperature, enhanced response, and superior long-term stability. This work suggests that the enhancement of sensing performance toward triethylamine can be attributed to the high relative contents of OV and OC, large specific surface area, catalytic effect, the electronic sensitization of Pt, and the reversible redox cycle properties of Ce. This sensor represents a unique and highly sensitive means to detect triethylamine, which shows great promise for potential applications in food safety inspection and environmental monitoring.
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Affiliation(s)
- Shiqiang Zhou
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Qingjie Lu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Mingpeng Chen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR 999078, P. R. China
| | - Bo Li
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Haitang Wei
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Baoye Zi
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Jiyang Zeng
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Yumin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Jin Zhang
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Zhongqi Zhu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
| | - Qingju Liu
- Yunnan Key Laboratory for Micro/Nano Materials & Technology, National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming 650091, P. R. China
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18
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Jeong S, Moon YK, Kim T, Park S, Kim KB, Kang YC, Lee J. A New Strategy for Detecting Plant Hormone Ethylene Using Oxide Semiconductor Chemiresistors: Exceptional Gas Selectivity and Response Tailored by Nanoscale Cr 2O 3 Catalytic Overlayer. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903093. [PMID: 32274308 PMCID: PMC7141008 DOI: 10.1002/advs.201903093] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 01/23/2020] [Indexed: 05/19/2023]
Abstract
A highly selective and sensitive detection of the plant hormone ethylene, particularly at low concentrations, is essential for controlling the growth, development, and senescence of plants, as well as for ripening of fruits. However, this remains challenging because of the non-polarity and low reactivity of ethylene. Herein, a strategy for detecting ethylene at a sub-ppm-level is proposed by using oxide semiconductor chemiresistors with a nanoscale oxide catalytic overlayer. The SnO2 sensor coated with the nanoscale catalytic Cr2O3 overlayer exhibits rapid sensing kinetics, good stability, and an unprecedentedly high ethylene selectivity with exceptional gas response (R a/R g - 1, where R a represents the resistance in air and R g represents the resistance in gas) of 16.8 at an ethylene concentration of 2.5 ppm at 350 °C. The sensing mechanism underlying the ultraselective and highly sensitive ethylene detection in the unique bilayer sensor is systematically investigated with regard to the location, configuration, and thickness of the catalytic Cr2O3 overlayer. The mechanism involves the effective catalytic oxidation of interfering gases into less- or non-reactive species, without limiting the analyte gas transport. The sensor exhibits a promising potential for achieving a precise quantitative assessment of the ripening of five different fruits.
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Affiliation(s)
- Seong‐Yong Jeong
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Young Kook Moon
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Tae‐Hyung Kim
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Sei‐Woong Park
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Ki Beom Kim
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Jong‐Heun Lee
- Department of Materials Science and EngineeringKorea UniversitySeoul02841Republic of Korea
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19
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Güntner AT, Wied M, Pineau NJ, Pratsinis SE. Rapid and Selective NH 3 Sensing by Porous CuBr. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903390. [PMID: 32274318 PMCID: PMC7140997 DOI: 10.1002/advs.201903390] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/11/2020] [Indexed: 05/25/2023]
Abstract
Fast and selective detection of NH3 at parts-per-billion (ppb) concentrations with inexpensive and low-power sensors represents a long-standing challenge. Here, a room temperature, solid-state sensor is presented consisting of nanostructured porous (78%) CuBr films. These are prepared by flame-aerosol deposition of CuO onto sensor substrates followed by dry reduction and bromination. Each step is monitored in situ through the film resistance affording excellent process control. Such porous CuBr films feature an order of magnitude higher NH3 sensitivity and five times faster response times than conventional denser CuBr films. That way, rapid (within 2.2 min) sensing of even the lowest (e.g., 5 ppb) NH3 concentrations at 90% relative humidity is attained with outstanding selectivity (30-260) over typical confounders including ethanol, acetone, H2, CH4, isoprene, acetic acid, formaldehyde, methanol, and CO, superior to state-of-the-art sensors. This sensor is ideal for hand-held and battery-driven devices or integration into wearable electronics as it does not require heating. From a broader perspective, the process opens exciting new avenues to also explore other bromides and classes of semiconductors (e.g., sulfides, nitrides, carbides) currently not accessible by flame-aerosol technology.
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Affiliation(s)
- Andreas T. Güntner
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Markus Wied
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Nicolay J. Pineau
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
| | - Sotiris E. Pratsinis
- Particle Technology LaboratoryDepartment of Mechanical and Process EngineeringETH ZurichSonneggstrasse 3Zurich8092Switzerland
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20
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Liu W, Zhou X, Xu L, Zhu S, Yang S, Chen X, Dong B, Bai X, Lu G, Song H. Graphene quantum dot-functionalized three-dimensional ordered mesoporous ZnO for acetone detection toward diagnosis of diabetes. NANOSCALE 2019; 11:11496-11504. [PMID: 31112195 DOI: 10.1039/c9nr00942f] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The development of a high-performance semiconductor oxide sensor for the accurate detection of trace disease biomarkers in exhaled breath is still a challenge that urgently needs to be addressed. Here, we proposed a self-assembly strategy and spin-coating process to create a graphene quantum dot (GQD)-functionalized three-dimensional ordered macroporous (3DOM) ZnO structure. The strong synergistic effect and the p-n heterojunction between the p-type GQDs and n-type ZnO effectively enlarged the resistance variation due to the change in oxygen adsorption. The specific 3DOM structure induced a hierarchical pore size (286 nm in macroscale and 26 nm in mesoscale) and 3D interconnection, which guaranteed high gas accessibility and fast carrier transportation. As a result, the GQD-modified 3DOM ZnO sensor exhibited a remarkably high response (Rair/Rgas = 15.2 for 1 ppm acetone), rapid response/recovery time (9/16 s), extremely low theoretical detection limit (8.7 ppb), and good selectivity towards acetone against other interfering gases. In particular, the proposed sensor could accurately distinguish trace acetone in the simulated breath of diabetic patients. These results demonstrate a high potential for the feasibility of the GQD-modified 3DOM SMO structure as a new sensing material for the possibility of noninvasive real-time diagnosis of diabetes.
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Affiliation(s)
- Wei Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People's Republic of China.
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21
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Ikram M, Liu L, Liu Y, Ullah M, Ma L, Bakhtiar SUH, Wu H, Yu H, Wang R, Shi K. Controllable synthesis of MoS 2@MoO 2 nanonetworks for enhanced NO 2 room temperature sensing in air. NANOSCALE 2019; 11:8554-8564. [PMID: 30990493 DOI: 10.1039/c9nr00137a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
MoS2 nanosheets (NSs) are a promising gas sensing material at room temperature (RT) due to their unique properties and structures. Unfortunately, the activity of pure MoS2 NSs is highly affected by the adsorption of atmospheric oxygen, which strongly influences the stability of MoS2 sensing devices and significantly hinders the practical applications of these sensors in air. Heterostructure formation may be an effective approach to modulate the intrinsic electronic properties of MoS2 NSs. In this study, thin MoO2 nanoplates (NPs) were decorated with multilayer MoS2 NSs via one-step controllable sulfurization to fabricate MoS2@MoO2 nanonetworks, and remarkable gas sensing performance was achieved with high stability in air at RT. In particular, the MSO-2 (1 h sulfurization of the MoO2 NPs) nanonetworks with n-p heterojunctions demonstrated a high response of 19.4 to 100 ppm NO2 in a short period of time (1.06 s) with rapid recovery (22.9 s) to the baseline. The excellent gas sensing performance of the MSO-2 sensor is attributed to the synergistic effect of the MoS2 NSs and thin MoO2 NPs, which created heterojunctions/defects to easily transfer electrons and provide more active sites for NO2 gas. This simple synthetic method to design and fabricate n-p heterojunction sensors will be effective in commercial gas sensing applications.
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Affiliation(s)
- Muhammad Ikram
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education. School of Chemistry and Material Science, Heilongjiang University, Harbin, 150080, P. R. China.
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Maurya AK, Weidenbacher L, Spano F, Fortunato G, Rossi RM, Frenz M, Dommann A, Neels A, Sadeghpour A. Structural insights into semicrystalline states of electrospun nanofibers: a multiscale analytical approach. NANOSCALE 2019; 11:7176-7187. [PMID: 30919869 DOI: 10.1039/c9nr00446g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A dedicated nanofiber design for applications in the biomedical domain is based on the understanding of nanofiber structures. The structure of electrospun nanofibers strongly influences their properties and functionalities. In polymeric nanofibers X-ray scattering and diffraction methods, i.e. SAXS and WAXD, are capable of decoding their structural insights from about 100 nm down to the Angström scale. Here, we present a comprehensive X-ray scattering and diffraction based study and introduce new data analysis approaches to unveil detailed structural features in electrospun poly(vinylidene fluoride-co-hexafluoropropylene) (PVDFhfp) nanofiber membranes. Particular emphasis was placed on anisotropic morphologies being developed during the nanofiber fabrication process. Global analysis was performed on SAXS data to derive the nanofibrillar structure of repeating lamella crystalline domains with average dimensions of 12.5 nm thickness and 7.8 nm spacing along with associated tie-molecules. The varying surface roughness of the nanofiber was evaluated by extracting the Porod exponent in parallel and perpendicular direction to the nanofiber axis, which was further validated by Atomic Force Microscopy. Additionally, the presence of a mixture of the monoclinic alpha and the orthorhombic beta PVDFhfp phases both exhibiting about 6% larger unit cells compared to the corresponding pure PVDF phases was derived from WAXD. The current study shows a generic approach in detailed understanding of internal structures and surface morphology for nanofibers. This forms the basis for targeted structure and morphology steering and the respective controlling during the fabrication process with the aim to engineer nanofibers for different biomedical applications with specific requirements.
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Affiliation(s)
- Anjani K Maurya
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-ray Analytics, St. Gallen, Switzerland.
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