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Cheng Q, Du X, Fu Z, Ding Z, Xie J. Dual-Mode Ce-MOF Nanozymes for Rapid and Selective Detection of Hydrogen Sulfide in Aquatic Products. Polymers (Basel) 2024; 16:1747. [PMID: 38932098 PMCID: PMC11207460 DOI: 10.3390/polym16121747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 06/18/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Increasing concern over the safety of consumable products, particularly aquatic products, due to freshness issues, has become a pressing issue. Therefore, ensuring the quality and safety of aquatic products is paramount. To address this, a dual-mode colorimetric-fluorescence sensor utilizing Ce-MOF as a mimic peroxidase to detect H2S was developed. Ce-MOF was prepared by a conventional solvothermal synthesis method. Ce-MOF catalyzed the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) by hydrogen peroxide (H2O2) to produce blue oxidized TMB (oxTMB). When dissolved, hydrogen sulfide (H2S) was present in the solution, and it inhibited the catalytic effect of Ce-MOF and caused the color of the solution to fade from blue to colorless. This change provided an intuitive indication for the detection of H2S. Through steady-state dynamic analysis, the working mechanism of this sensor was elucidated. The sensor exhibited pronounced color changes from blue to colorless, accompanied by a shift in fluorescence from none to light blue. Additionally, UV-vis absorption demonstrated a linear correlation with the H2S concentration, ranging from 200 to 2300 µM, with high sensitivity (limit of detection, LOD = 0.262 μM). Fluorescence intensity also showed a linear correlation, ranging from 16 to 320 µM, with high selectivity and sensitivity (LOD = 0.156 μM). These results underscore the sensor's effectiveness in detecting H2S. Furthermore, the sensor enhanced the accuracy of H2S detection and fulfilled the requirements for assessing food freshness and safety.
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Affiliation(s)
- Qi Cheng
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (Q.C.); (X.D.); (Z.F.)
| | - Xiaoyu Du
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (Q.C.); (X.D.); (Z.F.)
| | - Zuyao Fu
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (Q.C.); (X.D.); (Z.F.)
| | - Zhaoyang Ding
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (Q.C.); (X.D.); (Z.F.)
- Marine Biomedical Science and Technology Innovation Platform of Lin-Gang Special Area, Shanghai 201306, China
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China
| | - Jing Xie
- College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; (Q.C.); (X.D.); (Z.F.)
- Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, Shanghai 201306, China
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Channegowda M, Verma A, Arabia I, Meda US, Rawal I, Rustagi S, Yadav BC, Dunlop PS, Bhalla N, Chaudhary V. High selectivity and sensitivity through nanoparticle sensors for cleanroom CO 2detection. NANOTECHNOLOGY 2024; 35:315501. [PMID: 38631327 DOI: 10.1088/1361-6528/ad3fbf] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/17/2024] [Indexed: 04/19/2024]
Abstract
Clean room facilities are becoming more popular in both academic and industry settings, including low-and middle-income countries. This has led to an increased demand for cost-effective gas sensors to monitor air quality. Here we have developed a gas sensor using CoNiO2nanoparticles through combustion method. The sensitivity and selectivity of the sensor towards CO2were influenced by the structure of the nanoparticles, which were affected by the reducing agent (biofuels) used during synthesis. Among all reducing agents, urea found to yield highly crystalline and uniformly distributed CoNiO2nanoparticles, which when developed into sensors showed high sensitivity and selectivity for the detection of CO2gas in the presence of common interfering volatile organic compounds observed in cleanroom facilities including ammonia, formaldehyde, acetone, toluene, ethanol, isopropanol and methanol. In addition, the urea-mediated nanoparticle-based sensors exhibited room temperature operation, high stability, prompt response and recovery rates, and excellent reproducibility. Consequently, the synthesis approach to nanoparticle-based, energy efficient and affordable sensors represent a benchmark for CO2sensing in cleanroom settings.
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Affiliation(s)
- Manjunatha Channegowda
- Center for Nanomaterials and Devices (CND), Department of Chemistry, RV College of Engineering, 560059, Bengaluru, India
| | - Arpit Verma
- Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, U.P, India
| | - Igra Arabia
- Centre for Hydrogen and Green Technology, Department of Chemical Engineering, RV College of Engineering, 560059, Bengaluru, India
| | - Ujwal Shreenag Meda
- Centre for Hydrogen and Green Technology, Department of Chemical Engineering, RV College of Engineering, 560059, Bengaluru, India
| | - Ishpal Rawal
- Department of Physics, Kirori Mal College, University of Delhi, 110007, Delhi, India
| | - Sarvesh Rustagi
- Department of Food Technology, School of Applied and Life Sciences, Uttaranchal University, Uttrakhand, 248002, Dehradun, India
| | - Bal Chandra Yadav
- Department of Physics, Babasaheb Bhimrao Ambedkar University, Lucknow 226025, U.P, India
| | - Patrick Sm Dunlop
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast, Northern Ireland BT15 1AP, United Kingdom
| | - Nikhil Bhalla
- Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, 2-24 York Street, Belfast, Northern Ireland BT15 1AP, United Kingdom
- Healthcare Technology Hub, Ulster University, 2-24 York Street, Belfast, Northern Ireland BT15 1AP, United Kingdom
| | - Vishal Chaudhary
- Physics Department, Bhagini Nivedita College (BNC), University of Delhi, New Delhi 110043, India
- Centre for Research Impact & Outcome, Chitkara University, Punjab, 140401, India
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Galvani M, Freddi S, Sangaletti L. Disclosing Fast Detection Opportunities with Nanostructured Chemiresistor Gas Sensors Based on Metal Oxides, Carbon, and Transition Metal Dichalcogenides. SENSORS (BASEL, SWITZERLAND) 2024; 24:584. [PMID: 38257677 PMCID: PMC11154330 DOI: 10.3390/s24020584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
With the emergence of novel sensing materials and the increasing opportunities to address safety and life quality priorities of our society, gas sensing is experiencing an outstanding growth. Among the characteristics required to assess performances, the overall speed of response and recovery is adding to the well-established stability, selectivity, and sensitivity features. In this review, we focus on fast detection with chemiresistor gas sensors, focusing on both response time and recovery time that characterize their dynamical response. We consider three classes of sensing materials operating in a chemiresistor architecture, exposed to the most investigated pollutants, such as NH3, NO2, H2S, H2, ethanol, and acetone. Among sensing materials, we first selected nanostructured metal oxides, which are by far the most used chemiresistors and can provide a solid ground for performance improvement. Then, we selected nanostructured carbon sensing layers (carbon nanotubes, graphene, and reduced graphene), which represent a promising class of materials that can operate at room temperature and offer many possibilities to increase their sensitivities via functionalization, decoration, or blending with other nanostructured materials. Finally, transition metal dichalcogenides are presented as an emerging class of chemiresistive layers that bring what has been learned from graphene into a quite large portfolio of chemo-sensing platforms. For each class, studies since 2019 reporting on chemiresistors that display less than 10 s either in the response or in the recovery time are listed. We show that for many sensing layers, the sum of both response and recovery times is already below 10 s, making them promising devices for fast measurements to detect, e.g., sudden bursts of dangerous emissions in the environment, or to track the integrity of packaging during food processing on conveyor belts at pace with industrial production timescales.
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Affiliation(s)
- Michele Galvani
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy; (M.G.); (S.F.)
| | - Sonia Freddi
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy; (M.G.); (S.F.)
- Institute of Photonics and Nanotechnologies-Consiglio Nazionale delle Ricerche (IFN-CNR), Laboratory for Nanostructure Epitaxy and Spintronics on Silicon (LNESS), Via Anzani 42, 22100 Como, Italy
| | - Luigi Sangaletti
- Surface Science and Spectroscopy Lab at I-Lamp, Department of Mathematics and Physics, Via della Garzetta 48, 25133 Brescia, Italy; (M.G.); (S.F.)
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Kumarage GWC, Panamaldeniya SA, Maddumage DC, Moumen A, Maraloiu VA, Mihalcea CG, Negrea RF, Dassanayake BS, Gunawardhana N, Zappa D, Galstyan V, Comini E. Synthesis of TiO 2-(B) Nanobelts for Acetone Sensing. SENSORS (BASEL, SWITZERLAND) 2023; 23:8322. [PMID: 37837151 PMCID: PMC10575087 DOI: 10.3390/s23198322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/04/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023]
Abstract
Titanium dioxide nanobelts were prepared via the alkali-hydrothermal method for application in chemical gas sensing. The formation process of TiO2-(B) nanobelts and their sensing properties were investigated in detail. FE-SEM was used to study the surface of the obtained structures. The TEM and XRD analyses show that the prepared TiO2 nanobelts are in the monoclinic phase. Furthermore, TEM shows the formation of porous-like morphology due to crystal defects in the TiO2-(B) nanobelts. The gas-sensing performance of the structure toward various concentrations of hydrogen, ethanol, acetone, nitrogen dioxide, and methane gases was studied at a temperature range between 100 and 500 °C. The fabricated sensor shows a high response toward acetone at a relatively low working temperature (150 °C), which is important for the development of low-power-consumption functional devices. Moreover, the obtained results indicate that monoclinic TiO2-B is a promising material for applications in chemo-resistive gas detectors.
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Affiliation(s)
- Gayan W. C. Kumarage
- SENSOR Lab, Department of Information Engineering, University of Brescia, 25133 Brescia, Italy or (G.W.C.K.)
- Department of Physics and Electronics, Faculty of Science, University of Kelaniya, Kelaniya 11600, Sri Lanka
| | - Shasika A. Panamaldeniya
- Postgraduate Institute of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Physics, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Dileepa C. Maddumage
- Postgraduate Institute of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Department of Physics, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Abderrahim Moumen
- SENSOR Lab, Department of Information Engineering, University of Brescia, 25133 Brescia, Italy or (G.W.C.K.)
| | - Valentin A. Maraloiu
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Atomistilor str. 405 A, 077125 Magurele, Romania; (V.A.M.)
| | - Catalina G. Mihalcea
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Atomistilor str. 405 A, 077125 Magurele, Romania; (V.A.M.)
| | - Raluca F. Negrea
- Laboratory of Atomic Structures and Defects in Advanced Materials, National Institute of Materials Physics, Atomistilor str. 405 A, 077125 Magurele, Romania; (V.A.M.)
| | - Buddhika S. Dassanayake
- Department of Physics, Faculty of Science, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Nanda Gunawardhana
- Research and International Affairs, Sri Lanka Technological Campus, Padukka 10500, Sri Lanka
| | - Dario Zappa
- SENSOR Lab, Department of Information Engineering, University of Brescia, 25133 Brescia, Italy or (G.W.C.K.)
| | - Vardan Galstyan
- SENSOR Lab, Department of Information Engineering, University of Brescia, 25133 Brescia, Italy or (G.W.C.K.)
| | - Elisabetta Comini
- SENSOR Lab, Department of Information Engineering, University of Brescia, 25133 Brescia, Italy or (G.W.C.K.)
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Li L, Cheng J, Zhao Q, Zhang J, Yang H, Zhang Y, Hui Z, Zhao F, Liu W. Chromium oxide film for Q-switched and mode-locked pulse generation. OPTICS EXPRESS 2023; 31:16872-16881. [PMID: 37157756 DOI: 10.1364/oe.491792] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Chromium oxide (Cr2O3) is a promising material used in the applications such as photoelectrochemical devices, photocatalysis, magnetic random access memory, and gas sensors. But, its nonlinear optical characteristics and applications in ultrafast optics have not been studied yet. This study prepares a microfiber decorated with a Cr2O3 film via magnetron sputtering deposition and examines its nonlinear optical characteristics. The modulation depth and saturation intensity of this device are determined as 12.52% and 0.0176 MW/cm2. Meanwhile, the Cr2O3-microfiber is applied as a saturable absorber in an Er-doped fiber laser, and stable Q-switching and mode-locking laser pulses are successfully generated. In the Q-switched working state, the highest output power and shortest pulse width are measured as 12.8 mW and 1.385 µs, respectively. The pulse duration of this mode-locked fiber laser is as short as 334 fs, and its signal-to-noise ratio is 65 dB. As far as we know, this is the first illustration of using Cr2O3 in ultrafast photonics. The results confirm that Cr2O3 is a promising saturable absorber material and significantly extend the scope of saturable absorber materials for innovative fiber laser technologies.
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Kumarage GWC, Hakkoum H, Comini E. Recent Advancements in TiO 2 Nanostructures: Sustainable Synthesis and Gas Sensing. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1424. [PMID: 37111009 PMCID: PMC10147078 DOI: 10.3390/nano13081424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 06/19/2023]
Abstract
The search for sustainable technology-driven advancements in material synthesis is a new norm, which ensures a low impact on the environment, production cost, and workers' health. In this context, non-toxic, non-hazardous, and low-cost materials and their synthesis methods are integrated to compete with existing physical and chemical methods. From this perspective, titanium oxide (TiO2) is one of the fascinating materials because of its non-toxicity, biocompatibility, and potential of growing by sustainable methods. Accordingly, TiO2 is extensively used in gas-sensing devices. Yet, many TiO2 nanostructures are still synthesized with a lack of mindfulness of environmental impact and sustainable methods, which results in a serious burden on practical commercialization. This review provides a general outline of the advantages and disadvantages of conventional and sustainable methods of TiO2 preparation. Additionally, a detailed discussion on sustainable growth methods for green synthesis is included. Furthermore, gas-sensing applications and approaches to improve the key functionality of sensors, including response time, recovery time, repeatability, and stability, are discussed in detail in the latter parts of the review. At the end, a concluding discussion is included to provide guidelines for the selection of sustainable synthesis methods and techniques to improve the gas-sensing properties of TiO2.
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7
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Li L, Zhou L, Hu Z, Li T, Chen B, Li HY, Liu H. Hollow-Out Fe 2O 3-Loaded NiO Heterojunction Nanorods Enable Real-Time Exhaled Ethanol Monitoring under High Humidity. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15707-15720. [PMID: 36924356 DOI: 10.1021/acsami.2c23088] [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: 06/18/2023]
Abstract
The analysis of exhaled breath has opened up new exciting avenues in medical diagnostics, sleep monitoring, and drunk driving detection. Nevertheless, the detection accuracy is greatly affected due to high humidity in the exhaled breath. Here, we propose a regulation method to solve the problem of humidity adaptability in the ethanol-monitoring process by building a heterojunction and hollow-out nanostructure. Therefore, large specific surface area hollow-out Fe2O3-loaded NiO heterojunction nanorods assembled by porous ultrathin nanosheets were prepared by a well-tailored interface reaction. The excellent response (51.2 toward 10 ppm ethanol at 80% relative humidity) and selectivity to ethanol under high relative humidity with a lower operating temperature (150 °C) were obtained, and the detection limit was as low as 0.5 ppb with excellent long-term stability. The superior gas-sensing performance was attributed to the high surface activity of the heterojunction and hollow-out nanostructure. More importantly, GC-MS, diffuse reflectance Fourier transform infrared spectroscopy, and DFT were utilized to analyze the mechanisms of heterojunction sensitization, ethanol-sensing reaction, and high-humidity adaptability. Our integrated low-power MEMS Internet of Things (IoT) system based on Fe2O3@NiO successfully demonstrates the functional verification of ethanol detection in human exhalation, and the integrated voice alarm and IoT positioning functions are expected to solve the problem of real-time monitoring and rapid initial screening of drunk driving. Overall, this novel method plays a vital role in areas such as control of material morphology and composition, breath analysis, gas-sensing mechanism research, and artificial olfaction.
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Affiliation(s)
- Long Li
- School of Integrated Circuits, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Licheng Zhou
- School of Integrated Circuits, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Zhixiang Hu
- School of Integrated Circuits, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Tiankun Li
- Wenzhou Advanced Manufacturing Institute, Huazhong University of Science and Technology, 1085 Meiquan Road, Wenzhou, Zhejiang 325035, P. R. China
| | - Bingbing Chen
- School of Energy Science and Engineering, Nanjing Tech University, Nanjing, Jiangsu, 211816, P. R. China
| | - Hua-Yao Li
- School of Integrated Circuits, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
- Wenzhou Advanced Manufacturing Institute, Huazhong University of Science and Technology, 1085 Meiquan Road, Wenzhou, Zhejiang 325035, P. R. China
| | - Huan Liu
- School of Integrated Circuits, School of Optical and Electronic Information, Wuhan National Laboratory for Optoelectronics, Optics Valley Laboratory, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
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Mehrpooya M, Ganjali MR, Mousavi SA, Hedayat N, Allahyarzadeh A. Comprehensive Review of Fuel-Cell-Type Sensors for Gas Detection. Ind Eng Chem Res 2023. [DOI: 10.1021/acs.iecr.2c03790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Mehdi Mehrpooya
- Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran1439957131, Iran
- Hydrogen and Fuel Cell Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran1439957131, Iran
| | - Mohammad Reza Ganjali
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran1417614411, Iran
- National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran1439957131, Iran
| | - Seyed Ali Mousavi
- Hydrogen and Fuel Cell Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran1439957131, Iran
| | - Nader Hedayat
- Department of Chemical and Biomolecular Engineering, The University of Akron, Akron, Ohio44325, United States
| | - Ali Allahyarzadeh
- Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran1439957131, Iran
- Mechanical Engineering, Polytechnic School, University of São Paulo, São Paulo68503, Brazil
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9
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Screen-printed nickel hydroxide electrodes: Semiconducting, electrocatalytic, and electrochromic properties. J Electroanal Chem (Lausanne) 2023. [DOI: 10.1016/j.jelechem.2022.117052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Almaev AV, Kopyev VV, Novikov VA, Chikiryaka AV, Yakovlev NN, Usseinov AB, Karipbayev ZT, Akilbekov AT, Koishybayeva ZK, Popov AI. ITO Thin Films for Low-Resistance Gas Sensors. MATERIALS (BASEL, SWITZERLAND) 2022; 16:342. [PMID: 36614681 PMCID: PMC9822304 DOI: 10.3390/ma16010342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/03/2022] [Accepted: 12/20/2022] [Indexed: 06/17/2023]
Abstract
Indium tin oxide thin films were deposited by magnetron sputtering on ceramic aluminum nitride substrates and were annealed at temperatures of 500 °C and 600 °C. The structural, optical, electrically conductive and gas-sensitive properties of indium tin oxide thin films were studied. The possibility of developing sensors with low nominal resistance and relatively high sensitivity to gases was shown. The resistance of indium tin oxide thin films annealed at 500 °C in pure dry air did not exceed 350 Ohms and dropped by about 2 times when increasing the annealing temperature to 100 °C. Indium tin oxide thin films annealed at 500 °C were characterized by high sensitivity to gases. The maximum responses to 2000 ppm hydrogen, 1000 ppm ammonia and 100 ppm nitrogen dioxide for these films were 2.21 arbitrary units, 2.39 arbitrary units and 2.14 arbitrary units at operating temperatures of 400 °C, 350 °C and 350 °C, respectively. These films were characterized by short response and recovery times. The drift of indium tin oxide thin-film gas-sensitive characteristics during cyclic exposure to reducing gases did not exceed 1%. A qualitative model of the sensory effect is proposed.
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Affiliation(s)
- Aleksei V. Almaev
- Research and Development Center for Advanced Technologies in Microelectronics, National Research Tomsk State University, 634050 Tomsk, Russia
- Fokon LLC, 248035 Kaluga, Russia
| | - Viktor V. Kopyev
- Research and Development Center for Advanced Technologies in Microelectronics, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Vadim A. Novikov
- Research and Development Center for Advanced Technologies in Microelectronics, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Andrei V. Chikiryaka
- Ioffe Institute of the Russian Academy of Sciences, 194021 Saint Petersburg, Russia
| | - Nikita N. Yakovlev
- Research and Development Center for Advanced Technologies in Microelectronics, National Research Tomsk State University, 634050 Tomsk, Russia
| | - Abay B. Usseinov
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Zhakyp T. Karipbayev
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Abdirash T. Akilbekov
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Zhanymgul K. Koishybayeva
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
| | - Anatoli I. Popov
- Faculty of Physics and Technical Sciences, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan
- Institute of Solid State Physics, University of Latvia, 8 Kengaraga Str., LV-1063 Riga, Latvia
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11
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Lee J, Park J, Huh JS. Comparison of Characteristics of a ZnO Gas Sensor Using a Low-Dimensional Carbon Allotrope. SENSORS (BASEL, SWITZERLAND) 2022; 23:52. [PMID: 36616663 PMCID: PMC9823462 DOI: 10.3390/s23010052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Owing to the increasing construction of new buildings, the increase in the emission of formaldehyde and volatile organic compounds, which are emitted as indoor air pollutants, is causing adverse effects on the human body, including life-threatening diseases such as cancer. A gas sensor was fabricated and used to measure and monitor this phenomenon. An alumina substrate with Au, Pt, and Zn layers formed on the electrode was used for the gas sensor fabrication, which was then classified into two types, A and B, representing the graphene spin coating before and after the heat treatment, respectively. Ultrasonication was performed in a 0.01 M aqueous solution, and the variation in the sensing accuracy of the target gas with the operating temperature and conditions was investigated. As a result, compared to the ZnO sensor showing excellent sensing characteristics at 350 °C, it exhibited excellent sensing characteristics even at a low temperature of 150 °C, 200 °C, and 250 °C.
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Affiliation(s)
- Jihoon Lee
- Department of Convergence and Fusion System Engineering, Institute of Global Climate Change and Energy, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jaebum Park
- Department of Convergence and Fusion System Engineering, Institute of Global Climate Change and Energy, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Jeung-Soo Huh
- Department of Energy Convergence and Climate Change, Kyungpook National University, Daegu 41566, Republic of Korea
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12
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Alagh A, Annanouch FE, Sierra-Castillo A, Haye E, Colomer JF, Llobet E. Three-Dimensional Assemblies of Edge-Enriched WSe 2 Nanoflowers for Selectively Detecting Ammonia or Nitrogen Dioxide. ACS APPLIED MATERIALS & INTERFACES 2022; 14:54946-54960. [PMID: 36469520 PMCID: PMC9756288 DOI: 10.1021/acsami.2c16299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
Herein, we present, for the first time, a chemoresistive-type gas sensor composed of two-dimensional WSe2, fabricated by a simple selenization of tungsten trioxide (WO3) nanowires at atmospheric pressure. The morphological, structural, and chemical composition investigation shows the growth of vertically oriented three-dimensional (3D) assemblies of edge-enriched WSe2 nanoplatelets arrayed in a nanoflower shape. The gas sensing properties of flowered nanoplatelets (2H-WSe2) are investigated thoroughly toward specific gases (NH3 and NO2) at different operating temperatures. The integration of 3D WSe2 with unique structural arrangements resulted in exceptional gas sensing characteristics with dual selectivity toward NH3 and NO2 gases. Selectivity can be tuned by selecting its operating temperature (150 °C for NH3 and 100 °C for NO2). For instance, the sensor has shown stable and reproducible responses (24.5%) toward 40 ppm NH3 vapor detection with an experimental LoD < 2 ppm at moderate temperatures. The gas detecting capabilities for CO, H2, C6H6, and NO2 were also investigated to better comprehend the selectivity of the nanoflower sensor. Sensors showed repeatable responses with high sensitivity to NO2 molecules at a substantially lower operating temperature (100 °C) (even at room temperature) and LoD < 0.1 ppm. However, the gas sensing properties reveal high selectivity toward NH3 gas at moderate operating temperatures. Moreover, the sensor demonstrated high resilience against ambient humidity (Rh = 50%), demonstrating its remarkable stability toward NH3 gas detection. Considering the detection of NO2 in a humid ambient atmosphere, there was a modest increase in the sensor response (5.5%). Furthermore, four-month long-term stability assessments were also taken toward NH3 gas detection, and sensors showed excellent response stability. Therefore, this study highlights the practical application of the 2H variant of WSe2 nanoflower gas sensors for NH3 vapor detection.
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Affiliation(s)
- Aanchal Alagh
- Department
d’Enginyeria Electronica, Universitat
Rovira I Virgili, Avenida Paisos Catalans 26, 43007Tarragona, Spain
| | - Fatima Ezahra Annanouch
- Department
d’Enginyeria Electronica, Universitat
Rovira I Virgili, Avenida Paisos Catalans 26, 43007Tarragona, Spain
| | - Ayrton Sierra-Castillo
- Laboratoire
de Physique du Solide (LPS), Namur Institute
of Structured Matter (NISM), University of Namur, Rue de Bruxelles, 61, 500Namur, Belgium
| | - Emile Haye
- Laboratoire
d’Analyse par Réactions Nucléaires (LARN), Namur Institute of Structured Matter (NISM), Université
de Namur, Rue de Bruxelles
61, 5000Namur, Belgium
| | - Jean-François Colomer
- Laboratoire
de Physique du Solide (LPS), Namur Institute
of Structured Matter (NISM), University of Namur, Rue de Bruxelles, 61, 500Namur, Belgium
| | - Eduard Llobet
- Department
d’Enginyeria Electronica, Universitat
Rovira I Virgili, Avenida Paisos Catalans 26, 43007Tarragona, Spain
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Petrucci E, Porcelli F, Orsini M, De Santis S, Sotgiu G. Effect of Precursors on the Electrochemical Properties of Mixed RuOx/MnOx Electrodes Prepared by Thermal Decomposition. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7489. [PMID: 36363080 PMCID: PMC9655995 DOI: 10.3390/ma15217489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Growing thin layers of mixed-metal oxides on titanium supports allows for the preparation of versatile electrodes that can be used in many applications. In this work, electrodes coated with thin films of ruthenium (RuOx) and manganese oxide (MnOx) were fabricated via thermal decomposition of a precursor solution deposited on a titanium substrate by spin coating. In particular, we combined different Ru and Mn precursors, either organic or inorganic, and investigated their influence on the morphology and electrochemical properties of the materials. The tested salts were: Ruthenium(III) acetylacetonate (Ru(acac)3), Ruthenium(III) chloride (RuCl3·xH2O), Manganese(II) nitrate (Mn(NO3)2·4H2O), and Manganese(III) acetylacetonate (Mn(acac)3). After fabrication, the films were subjected to different characterization techniques, including scanning electron microscopy (SEM), polarization analysis, open-circuit potential (OCP) measurements, electrochemical impedance spectroscopy (EIS), linear sweep voltammetry (LSV), cyclic voltammetry (CV), and galvanostatic charge-discharge (GCD) experiments. The results indicate that compared to the others, the combination of RuCl3 and Mn(acac) produces fewer compact films, which are more susceptible to corrosion, but have outstanding capacitive properties. In particular, this sample exhibits a capacitance of 8.3 mF cm-2 and a coulombic efficiency of higher than 90% in the entire range of investigated current densities.
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Affiliation(s)
- Elisabetta Petrucci
- Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Francesco Porcelli
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Monica Orsini
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Serena De Santis
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
| | - Giovanni Sotgiu
- Department of Industrial, Electronic and Mechanical Engineering, Roma Tre University, Via Vito Volterra 62, 00146 Rome, Italy
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Recent Progress on Nanomaterials for NO 2 Surface Acoustic Wave Sensors. NANOMATERIALS 2022; 12:nano12122120. [PMID: 35745459 PMCID: PMC9227767 DOI: 10.3390/nano12122120] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/15/2022] [Accepted: 06/15/2022] [Indexed: 12/15/2022]
Abstract
NO2 gas surface acoustic wave (SAW)sensors are under continuous development due to their high sensitivity, reliability, low cost and room temperature operation. Their integration ability with different receptor nanomaterials assures a boost in the performance of the sensors. Among the most exploited nano-materials for sensitive detection of NO2 gas molecules are carbon-based nanomaterials, metal oxide semiconductors, quantum dots, and conducting polymers. All these nanomaterials aim to create pores for NO2 gas adsorption or to enlarge the specific surface area with ultra-small nanoparticles that increase the active sites where NO2 gas molecules can diffuse. This review provides a general overview of NO2 gas SAW sensors, with a focus on the different sensors’ configurations and their fabrication technology, on the nanomaterials used as sensitive NO2 layers and on the test methods for gas detection. The synthesis methods of sensing nanomaterials, their functionalization techniques, the mechanism of interaction between NO2 molecules and the sensing nanomaterials are presented and discussed.
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