1
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Innovations in the synthesis of graphene nanostructures for bio and gas sensors. BIOMATERIALS ADVANCES 2023; 145:213234. [PMID: 36502548 DOI: 10.1016/j.bioadv.2022.213234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 11/11/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022]
Abstract
Sensors play a significant role in modern technologies and devices used in industries, hospitals, healthcare, nanotechnology, astronomy, and meteorology. Sensors based upon nanostructured materials have gained special attention due to their high sensitivity, precision accuracy, and feasibility. This review discusses the fabrication of graphene-based biosensors and gas sensors, which have highly efficient performance. Significant developments in the synthesis routes to fabricate graphene-based materials with improved structural and surface properties have boosted their utilization in sensing applications. The higher surface area, better conductivity, tunable structure, and atom-thick morphology of these hybrid materials have made them highly desirable for the fabrication of flexible and stable sensors. Many publications have reported various modification approaches to improve the selectivity of these materials. In the current work, a compact and informative review focusing on the most recent developments in graphene-based biosensors and gas sensors has been designed and delivered. The research community has provided a complete critical analysis of the most robust case studies from the latest fabrication routes to the most complex challenges. Some significant ideas and solutions have been proposed to overcome the limitations regarding the field of biosensors and hazardous gas sensors.
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M. Hizam SM, Al-Dhahebi AM, Mohamed Saheed MS. Recent Advances in Graphene-Based Nanocomposites for Ammonia Detection. Polymers (Basel) 2022; 14:5125. [PMID: 36501520 PMCID: PMC9739373 DOI: 10.3390/polym14235125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/26/2022] [Accepted: 11/10/2022] [Indexed: 11/27/2022] Open
Abstract
The increasing demand to mitigate the alarming effects of the emission of ammonia (NH3) on human health and the environment has highlighted the growing attention to the design of reliable and effective sensing technologies using novel materials and unique nanocomposites with tunable functionalities. Among the state-of-the-art ammonia detection materials, graphene-based polymeric nanocomposites have gained significant attention. Despite the ever-increasing number of publications on graphene-based polymeric nanocomposites for ammonia detection, various understandings and information regarding the process, mechanisms, and new material components have not been fully explored. Therefore, this review summarises the recent progress of graphene-based polymeric nanocomposites for ammonia detection. A comprehensive discussion is provided on the various gas sensor designs, including chemiresistive, Quartz Crystal Microbalance (QCM), and Field-Effect Transistor (FET), as well as gas sensors utilising the graphene-based polymer nanocomposites, in addition to highlighting the pros and cons of graphene to enhance the performance of gas sensors. Moreover, the various techniques used to fabricate graphene-based nanocomposites and the numerous polymer electrolytes (e.g., conductive polymeric electrolytes), the ion transport models, and the fabrication and detection mechanisms of ammonia are critically addressed. Finally, a brief outlook on the significant progress, future opportunities, and challenges of graphene-based polymer nanocomposites for the application of ammonia detection are presented.
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Affiliation(s)
- Sara Maira M. Hizam
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
- Department of Fundamental and Applied Sciences, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Adel Mohammed Al-Dhahebi
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
| | - Mohamed Shuaib Mohamed Saheed
- Centre of Innovative Nanostructures and Nanodevices (COINN), Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
- Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
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3
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Jee CE, Chow MK, Yeap SP. Fabrication of flexible carbon dioxide gas sensor with conductive polymer/reduced graphene oxide hybrids: Effects of substrate type and mass ratio. J Appl Polym Sci 2022. [DOI: 10.1002/app.53415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Chong Eu Jee
- Department of Chemical & Petroleum Engineering, Faculty of Engineering, Technology & Built Environment UCSI University Kuala Lumpur Malaysia
| | - Mei Kei Chow
- Department of Chemical & Petroleum Engineering, Faculty of Engineering, Technology & Built Environment UCSI University Kuala Lumpur Malaysia
| | - Swee Pin Yeap
- Department of Chemical & Petroleum Engineering, Faculty of Engineering, Technology & Built Environment UCSI University Kuala Lumpur Malaysia
- UCSI‐Cheras Low Carbon Innovation Hub Research Consortium Kuala Lumpur Malaysia
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Chang X, Li X, Xue Q. DFT insights into the selective NH 3sensing mechanism of two dimensional ZnTe monolayer. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:374002. [PMID: 35790174 DOI: 10.1088/1361-648x/ac7e9b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/05/2022] [Indexed: 06/15/2023]
Abstract
Exploring novel NH3sensing materials is crucial in chemical industries, fertilizing plants and medical fields. Herein, for the first time, the NH3sensing behaviors and sensing mechanisms of two dimensional (2D) ZnTe monolayer are systematically investigated by density functional theory calculations. It is shown that 2D ZnTe monolayer exhibits excellent selective NH3sensing properties. (220) crystal facet of ZnTe possesses a higher NH3adsorption energy (-1.59 eV) and a larger charge transfer (0.195e) than (111) and (311) crystal facets. The positive charges could enhance NH3sensing while the negative charges could reduce NH3sensing. The NH3adsorption strengths are significantly improved in O2atmosphere while it is negligibly affected by N2atmosphere and H2O atmosphere. Moreover, the presence of Zn vacancy and Fe, Co, Ni doping could improve the NH3sensing of ZnTe. Additionally, the experimental results confirms that ZnTe possesses a low detection limit of 0.1 ppm NH3. These theoretical predictions and experimental results present a wide range of possibilities for the further development of ZnTe monolayer in NH3sensing fields.
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Affiliation(s)
- Xiao Chang
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
| | - Xiaofang Li
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
| | - Qingzhong Xue
- State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, People's Republic of China
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Gas Sensitive Characteristics of Polyaniline Decorated with Molybdenum Ditelluride Nanosheets. CHEMOSENSORS 2022. [DOI: 10.3390/chemosensors10070264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, hydrochloric acid (HCl)-doped molybdenum ditelluride (MoTe2) nanosheets/polyaniline (PANI) nanofiber composites are prepared by in situ chemical oxidation polymerization, and then the composites are deposited on interdigital electrodes (IDEs) to fabricate a NH3 gas sensor. Morphological analysis of the composites reveals that the PANI fibers are deposited on 2D MoTe2 sheets, showing a porous mesh microstructure structure with a more continuous distribution of PANI layer. FTIR spectrum analysis indicates the interaction between the MoTe2 nanosheets and the PANI in the MoTe2/PANI composites. The results demonstrate that the as-prepared MoTe2/PANI composites exhibit higher response than the pure PANI, in particular, the 8 wt.% MoTe2/PANI composites display about 4.23 times enhancement in response value toward 1000 ppm NH3 gas compared with the pure PANI. The enhanced NH3 gas-sensitive properties may be due to the increasing surface area of MoTe2/PANI composite films and the possible interaction of the P-N heterojunctions formed between PANI and the 2H-MoTe2 nanosheets.
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Wu Q, Li X, Wang X, Yuan Y, Bu X, Wu H, Li X, Han C, Wang X, Liu W. High-performance p-hexafluoroisopropanol phenyl functionalized multi-walled carbon nanotube film on surface acoustic wave device for organophosphorus vapor detection. NANOTECHNOLOGY 2022; 33:375501. [PMID: 35605577 DOI: 10.1088/1361-6528/ac7242] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/22/2022] [Indexed: 06/15/2023]
Abstract
A delay line-type surface acoustic wave (SAW) gas sensor based on p-hexafluoroisopropanol phenyl (HFIPPH) functionalized multi-walled carbon nanotube (MWCNT) film is developed to detect organophosphorus dimethyl methylphosphonate (DMMP) vapor (a simulant of chemical nerve agent sarin). Inspired by the transfer process of Cu-based graphene, a uniform and size-controllable HFIPPH-MWCNT film is successfully prepared on the SAW device via a wet-etching transfer method. For the first time, we use the method of measuring the change of the sensor's insertion loss to achieve the detection of ultra-low concentration DMMP vapor. The designed sensor exhibits a fast response/recovery time about 3 s/50 s, and a low detection limit of 0.1 ppm. Additionally, the stability and selectivity of the sensor and the influence of humidity on its response are evaluated through experiments. The acoustoelectric effect is proved to be the sensing mechanism of the sensor insertion loss response.
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Affiliation(s)
- Qiang Wu
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Xue Li
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Xuming Wang
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Yubin Yuan
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Xiangrui Bu
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Haiyang Wu
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Xin Li
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - Chuanyu Han
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
| | - XiaoLi Wang
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
- School of Science, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Weihua Liu
- Department of Microelectronics, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- The Key Lab of Micro-Nano Electronics and System Integration of Xi'an City, Xi'an 710049, People's Republic of China
- Research Institute of Xi'an Jiaotong University, Zhejiang, 311215, People's Republic of China
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Xia Y, Wu Z, Qin Z, Chen F, Lv C, Zhang M, Shaymurat T, Duan H. Wool-Based Carbon Fiber/MoS 2 Composite Prepared by Low-Temperature Catalytic Hydrothermal Method and Its Application in the Field of Gas Sensors. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1105. [PMID: 35407223 PMCID: PMC9000424 DOI: 10.3390/nano12071105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/19/2022] [Accepted: 03/20/2022] [Indexed: 12/24/2022]
Abstract
Under the background of the Paris Agreement on reducing greenhouse gases, waste wools were converted into wool carbon fiber (WCF) and WCF-MoS2 composites by low-temperature catalytic hydrothermal carbonization. Their structures and gas-sensing performances were studied for the first time. Due to the existence of heterojunctions, the responses of the WCF-MoS2 composite to the five analytes were 3-400 times those of MoS2 and 2-11 times those of WCF. Interestingly, because of the N, P, and S elements contained in wools, the WCF prepared by the hydrothermal method was realized the doping of N, P, and S, which caused the sensing curves of WCF to have different shapes for different analytes. This characteristic was also well demonstrated by the WCF-MoS2 composite, which inspired us to realize the discriminative detection only by a single WCF-MoS2 sensor and image recognition technology. What's more, the WCF-MoS2 composite also showed a high sensitivity, a high selectivity, and a rapid response to NH3. The response time and the recovery time to 3 ppm NH3 were about 16 and 5 s, respectively. The detection of limit of WCF-MoS2 for NH3 was 19.1 ppb. This work provides a new idea for the development of sensors and the resource utilization of wool waste.
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Affiliation(s)
- Yidan Xia
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, China; (Y.X.); (H.D.)
| | - Zhaofeng Wu
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, China; (Y.X.); (H.D.)
| | - Zhangjie Qin
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China; (Z.Q.); (F.C.); (C.L.); (M.Z.)
| | - Fengjuan Chen
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China; (Z.Q.); (F.C.); (C.L.); (M.Z.)
| | - Changwu Lv
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China; (Z.Q.); (F.C.); (C.L.); (M.Z.)
| | - Min Zhang
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China; (Z.Q.); (F.C.); (C.L.); (M.Z.)
| | - Talgar Shaymurat
- Key Laboratory of New Energy and Materials Research, Xinjiang Institute of Engineering, Urumqi 830023, China;
| | - Haiming Duan
- Xinjiang Key Laboratory of Solid State Physics and Devices, Xinjiang University, Urumqi 830046, China; (Y.X.); (H.D.)
- School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China; (Z.Q.); (F.C.); (C.L.); (M.Z.)
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8
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Hamdi-Mohammadabad P, Tohidi T, Talebzadeh R, Mohammad-Rezaei R, Rahmatallahpur S. Preparation and characterization of gamma irradiated ZnO/PANI hybrid films. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-08053-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Liu H, Tao Y, Sun H, Wang TX, Peng Z, Jin J, Wang Z, Peng K, Wei H, Li YJ, Han BH, Sun L. In-situelectrochemical polymerization of aniline on flexible conductive substrates for supercapacitors and non-enzymatic ascorbic acid sensors. NANOTECHNOLOGY 2021; 33:045405. [PMID: 34666325 DOI: 10.1088/1361-6528/ac30f3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 10/19/2021] [Indexed: 06/13/2023]
Abstract
Polyaniline, as a kind of conductive polymer with commercial application prospects, is still under researches in its synthesis and applications. In this work, polyaniline was fabricated on flexible substrates including carbon cloths and polyethylene naphthalate byin situelectropolymerization method. The synthesized flexible electrodes were characterized by scanning electron microscopy, High resolution transmission electron microscope, atomic force microscope, Fourier transform infrared, x-ray diffraction, and x-ray photoelectron spectroscopy. Owing to the conductivity and the reversible redox property, the polyaniline/carbon cloth electrodes show excellent properties such as decent supercapacitor performance and good detection capability toward ascorbic acid. As supercapacitors, the electrodes exhibit a specific capacitance as high as 776 F g-1at a current density of 1 A g-1and a long cycle life of 20 000 times in the three-electrode system. As ascorbic acid sensors, the flexible electrodes demonstrate stable response to ascorbic acid in the range of 1-3000μM with an outstanding sensitivity (4228μA mM-1cm-2), low detection limit (1μM), and a fast response time. This work holds promise for high-performance and low-cost flexible electrodes for both supercapacitors and non-enzymatic ascorbic acid sensors, and may inspire inventions of self-powered electrochemical sensor.
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Affiliation(s)
- Hui Liu
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - You Tao
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Huijuan Sun
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Tian-Xiong Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhisheng Peng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jiyou Jin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zhongpu Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Kang Peng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Haonan Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- The GBA National Institute for Nanotechnology Innovation, Guangdong 510700, People's Republic of China
| | - Yong Jun Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- The GBA National Institute for Nanotechnology Innovation, Guangdong 510700, People's Republic of China
| | - Bao-Hang Han
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Lianfeng Sun
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- The GBA National Institute for Nanotechnology Innovation, Guangdong 510700, People's Republic of China
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Yuan Y, Wu H, Bu X, Wu Q, Wang X, Han C, Li X, Wang X, Liu W. Improving Ammonia Detecting Performance of Polyaniline Decorated rGO Composite Membrane with GO Doping. MATERIALS 2021; 14:ma14112829. [PMID: 34070649 PMCID: PMC8198450 DOI: 10.3390/ma14112829] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/18/2021] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
Abstract
Gas-sensing performance of graphene-based material has been investigated widely in recent years. Polyaniline (PANI) has been reported as an effective method to improve ammonia gas sensors’ response. A gas sensor based on a composite of rGO film and protic acid doped polyaniline (PA-PANI) with GO doping is reported in this work. GO mainly provides NH3 adsorption sites, and PA-PANI is responsible for charge transfer during the gas-sensing response process. The experimental results indicate that the NH3 gas response of rGO is enhanced significantly by decorating with PA-PANI. Moreover, a small amount of GO mixed with PA-PANI is beneficial to increase the gas response, which showed an improvement of 262.5% at 25 ppm comparing to no GO mixing in PA-PANI.
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Affiliation(s)
- Yubin Yuan
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Haiyang Wu
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Xiangrui Bu
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Qiang Wu
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Xuming Wang
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Chuanyu Han
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
| | - Xin Li
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
- Guangdong Shunde Xi’an Jiaotong University Academy, Xi’an Jiaotong University, NO.3 Deshengdong Road, Daliang, Shunde District, Foshan 528300, China
| | - Xiaoli Wang
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
- School of Science, Xi’an Jiaotong University, Xi’an 710049, China
| | - Weihua Liu
- School of Microelectronics, School of Electronics and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, China; (Y.Y.); (H.W.); (X.B.); (Q.W.); (X.W.); (C.H.); (X.L.); (X.W.)
- The Key Lab of Micro-nano Electronics and System Integration of Xi’an City, Xi’an 710049, China
- Research Institute of Xi’an Jiaotong University, Hangzhou 311215, China
- Correspondence: ; Tel.: +86-29-8266-3343
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11
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Luo G, Xie L, He M, Jaisutti R, Zhu Z. Flexible fabric gas sensors based on reduced graphene-polyaniline nanocomposite for highly sensitive NH 3detection at room temperature. NANOTECHNOLOGY 2021; 32:305501. [PMID: 33794514 DOI: 10.1088/1361-6528/abf455] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 04/01/2021] [Indexed: 06/12/2023]
Abstract
A flexible fabric gas sensor for the detection of sub-ppm-level NH3is reported in this paper. The reduced graphene oxide (rGO)-polyaniline (PANI) nanocomposite was successfully coated on cotton thread via anin situpolymerization technique. The morphology, microstructure and composition were analyzed by field-emission scanning electron microscope, x-ray diffraction, Fourier transform infrared spectroscopy and Raman spectroscopy. Furthermore, we have studied the responses of the rGO-PANI nanocomposite-based flexible sensors for the detection of NH3varying from 1-100 ppm, operated at 22 °C. At the optimized concentration of rGO, the response of these sensors increased by 4-5 times in comparison with the pristine rGO and PANI. These flexible sensors exhibited fast response, remarkable long-term stability, good selectivity and a low detection limit. The sensing mechanism for the high sensing performance has been thoroughly discussed and it is mainly due to the distinctive 1D fiber structure, the formation of a p-p heterojunction between the rGO nanosheets and PANI. The rGO-PANI composite-based fabric sensor with low power consumption is a potential flexible electronic device for the detection of NH3.
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Affiliation(s)
- Guifang Luo
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, 201209, People's Republic of China
| | - Lili Xie
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, 201209, People's Republic of China
- Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, 201209, People's Republic of China
| | - Meng He
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, 201209, People's Republic of China
| | - Rawat Jaisutti
- Department of Physics, Faculty of Science and Technology, Thammasat University, Pathumthani, 12120, Thailand
- Research Unit in Innovative Sensor and Nanoelectronic Devices, Thammasat University, Pathumthani, 12120, Thailand
| | - Zhigang Zhu
- School of Environmental and Materials Engineering, College of Engineering, Shanghai Polytechnic University, Shanghai, 201209, People's Republic of China
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, People's Republic of China
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Rheological Properties of Graphene Modified Asphalt Binders. NANOMATERIALS 2020; 10:nano10112197. [PMID: 33158033 PMCID: PMC7692706 DOI: 10.3390/nano10112197] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/25/2020] [Accepted: 11/02/2020] [Indexed: 12/02/2022]
Abstract
Recently, low-cost, high-quality graphene can be obtained readily, so it is potential to prepare conductive graphene modified asphalts (GMAs). In this paper, GMAs were prepared with 0%, 2%, 4%, 6%, 8%, and 10% of graphene by weight of composites. Dynamic shear rheological experiments conducted from −30 to 120 °C illustrate that elasticity at above ambient temperatures and rutting resistance at higher temperatures are enhanced and, especially, the conceived percolation of GMAs occurs at graphene contents (GC) above 8% which were verified from three changes as GC increases, i.e., the curve characteristics of complex moduli, storage moduli at temperatures over 100 °C, temperatures when the phase angle reaches 90° and the trend of TG′=G″. The modification mechanisms are different before and after percolation. Before the percolation threshold, graphene which has a molecular structure similar to asphaltene enhances asphalt, like increasing asphaltene components, and after threshold, graphene improves asphalt because of the formed graphene networks. Rotational viscosities test results show that the higher the GC is, the higher the operating temperatures are, but the operating temperatures are higher than 200 °C when GC is above 4%. The percolation helps to further develop conductive asphalt concrete for intelligence pavement, but the operating properties of GMAs need to be improved.
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