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Zhang L, Qi J, Chen W, Yang X, Fang Z, Li J, Li X, Lu S, Wang L. Constructing Hollow Multishelled Microreactors with a Nanoconfined Microenvironment for Ofloxacin Degradation through Peroxymonosulfate Activation: Evolution of High-Valence Cobalt-Oxo Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:16141-16151. [PMID: 37695341 DOI: 10.1021/acs.est.3c04174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
This study constructed hollow multishelled microreactors with a nanoconfined microenvironment for degrading ofloxacin (OFX) through peroxymonosulfate (PMS) activation in Fenton-like advanced oxidation processes (AOPs), resulting in adequate contaminant mineralization. Among the microreactors, a triple-shelled Co-based hollow microsphere (TS-Co/HM) exhibited optimal performance; its OFX degradation rate was 0.598 min-1, which was higher than that of Co3O4 nanoparticles by 8.97-fold. The structural tuning of Co/HM promoted the formation of oxygen vacancies (VO), which then facilitated the evolution of high-valence cobalt-oxo (Co(IV)═O) and shifted the entire t2g orbital of the Co atom upward, promoting catalytic reactions. Co(IV)═O was identified using a phenylmethyl sulfoxide (PMSO) probe and in situ Raman spectroscopy, and theoretical calculations were conducted to identify the lower energy barrier for Co(IV)═O formation on the defect-rich catalyst. Furthermore, the TS-Co/HM catalyst exhibited remarkable stability in inorganic (Cl-, H2PO4-, and NO3-), organic (humic acid), real water samples (tap water, river water, and hospital water), and in a continuous flow system in a microreactor. The nanoconfined microenvironment could enrich reactants in the catalyst cavities, prolong the residence time of molecules, and increase the utilization efficiency of Co(IV)═O. This work describes an activation process involving Co(IV)═O for organic contaminants elimination. Our results may encourage the use of multishelled structures and inform the design of nanoconfined catalysts in AOPs.
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Affiliation(s)
- Lin Zhang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Juanjuan Qi
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Wenxing Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xiaoyong Yang
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Zhimo Fang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Jinmeng Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Xiuze Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Siyue Lu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Lidong Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
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Liu Y, Li S, Xiao S, Du K. Down to ppb level NO2 detection by vertically MoS2 nanoflakes grown on In2O3 microtubes at room temperature. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Preparation and gas-sensitive properties of hollow Zn2SnO4/SnO2 nano-cubes. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Choi B, Shin D, Lee HS, Song H. Nanoparticle design and assembly for p-type metal oxide gas sensors. NANOSCALE 2022; 14:3387-3397. [PMID: 35103270 DOI: 10.1039/d1nr07561f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Metal oxide semiconductors have wide band gaps with tailorable electrical properties and high stability, suitable for chemiresistive gas sensors. p-Type oxide semiconductors generally have less sensitivity than their n-type counterparts but provide unique functionality with low humidity dependence. Among various approaches to enhance the p-type characteristics, nanostructuring of active materials is essential to exhibit high sensing performances comparable to n-type materials. Moreover, p-n heterojunction formation can achieve superior sensitivity at low operating temperatures. The representative examples are hollow and urchin-like particles, mesoporous structures, and nanowire networks. These morphologies can generate abundant active surface sites with a high surface area and induce rapid gas diffusion and facile charge transport. For growing interests in environmental and healthcare monitoring, p-type oxide semiconductors and their heterojunctions with well-designed nanostructures gain much attention as advanced gas sensing materials for practical applications. In addition to precise nanostructure design, the combination with other strategies, e.g. light activation and multiple gas sensing analysis using sensor arrays will be able to fabricate the desired gas sensors with exclusive gas detection at ultra-low concentrations operating even at room temperature.
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Affiliation(s)
- Byeonghoon Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.
| | - Dongwoo Shin
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.
| | - Hee-Seung Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.
| | - Hyunjoon Song
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.
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Jiang T, Liu X, Sun J. UV-enhanced NO 2sensor using ZnO quantum dots sensitized SnO 2porous nanowires. NANOTECHNOLOGY 2022; 33:185501. [PMID: 35008071 DOI: 10.1088/1361-6528/ac49c1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
ZnO quantum dots sensitized SnO2porous nanowires were fabricated and designed for UV excitation gas sensor. The ZnO/SnO2composite (SZQ1%) with the molar proportion of 1:100 exhibits excellent sensing properties to NO2gas under UV irradiation at 40 °C. The limits of detection of the SZQ1% sensor is 100 ppb. The humidity stability of SZQ1% was also measured and discussed by DC reversed circuit and complex impedance curves. The gas sensing mechanism is well discussed and illustrated to the ZnO quantum dots sensitized and the increased photo-generated carriers under UV irradiation.
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Affiliation(s)
- Tianchen Jiang
- The Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, People's Republic of China
| | - Xin Liu
- College of Science, Harbin University of Science and Technology, Harbin 150080, People's Republic of China
| | - Jianbo Sun
- The Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, People's Republic of China
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6
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Manzini I, Schild D, Di Natale C. Principles of odor coding in vertebrates and artificial chemosensory systems. Physiol Rev 2021; 102:61-154. [PMID: 34254835 DOI: 10.1152/physrev.00036.2020] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The biological olfactory system is the sensory system responsible for the detection of the chemical composition of the environment. Several attempts to mimic biological olfactory systems have led to various artificial olfactory systems using different technical approaches. Here we provide a parallel description of biological olfactory systems and their technical counterparts. We start with a presentation of the input to the systems, the stimuli, and treat the interface between the external world and the environment where receptor neurons or artificial chemosensors reside. We then delineate the functions of receptor neurons and chemosensors as well as their overall I-O relationships. Up to this point, our account of the systems goes along similar lines. The next processing steps differ considerably: while in biology the processing step following the receptor neurons is the "integration" and "processing" of receptor neuron outputs in the olfactory bulb, this step has various realizations in electronic noses. For a long period of time, the signal processing stages beyond the olfactory bulb, i.e., the higher olfactory centers were little studied. Only recently there has been a marked growth of studies tackling the information processing in these centers. In electronic noses, a third stage of processing has virtually never been considered. In this review, we provide an up-to-date overview of the current knowledge of both fields and, for the first time, attempt to tie them together. We hope it will be a breeding ground for better information, communication, and data exchange between very related but so far little connected fields.
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Affiliation(s)
- Ivan Manzini
- Animal Physiology and Molecular Biomedicine, Justus-Liebig-University Gießen, Gießen, Germany
| | - Detlev Schild
- Institute of Neurophysiology and Cellular Biophysics, University Medical Center, University of Göttingen, Göttingen, Germany
| | - Corrado Di Natale
- Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
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Kalidoss R, Kothalam R, Manikandan A, Jaganathan SK, Khan A, Asiri AM. Socio-economic demands and challenges for non-invasive disease diagnosis through a portable breathalyzer by the incorporation of 2D nanosheets and SMO nanocomposites. RSC Adv 2021; 11:21216-21234. [PMID: 35478818 PMCID: PMC9034087 DOI: 10.1039/d1ra02554f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/23/2021] [Indexed: 12/15/2022] Open
Abstract
Breath analysis for non-invasive clinical diagnostics and treatment progression has penetrated the research community owing to the technological developments in novel sensing nanomaterials. The trace level selective detection of volatile organic compounds (VOCs) in breath facilitates the study of physiological disorder and real-time health monitoring. This review focuses on advancements in chemiresistive gas sensor technology for biomarker detection associated with different diseases. Emphasis is placed on selective biomarker detection by semiconducting metal oxide (SMO) nanostructures, 2-dimensional nanomaterials (2DMs) and nanocomposites through various optimization strategies and sensing mechanisms. Their synergistic properties for incorporation in a portable breathalyzer have been elucidated. Furthermore, the socio-economic demands of a breathalyzer in terms of recent establishment of startups globally and challenges of a breathalyzer are critically reviewed. This initiative is aimed at highlighting the challenges and scope for improvement to realize a high performance chemiresistive gas sensor for non-invasive disease diagnosis. Breath analysis for non-invasive clinical diagnostics and treatment progression has penetrated the research community owing to the technological developments in novel sensing nanomaterials.![]()
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Affiliation(s)
- Ramji Kalidoss
- Department of Biomedical Engineering, Bharath Institute of Higher Education and Research Selaiyur Tamil Nadu 600 073 India +91-9840-959832
| | - Radhakrishnan Kothalam
- Department of Chemistry, College of Engineering and Technology, SRM Institute of Science and Technology Kattankulathur Tamil Nadu 603 203 India
| | - A Manikandan
- Department of Chemistry, Bharath Institute of Higher Education and Research Selaiyur Tamil Nadu 600 073 India.,Centre for Nanoscience and Nanotechnology, Bharath Institute of Higher Education and Research Selaiyur Tamil Nadu 600 073 India
| | - Saravana Kumar Jaganathan
- Bionanotechnology Research Group, Ton Duc Thang University Ho Chi Minh City Vietnam.,Faculty of Applied Sciences, Ton Duc Thang University Ho Chi Minh City Vietnam.,Department of Engineering, Faculty of Science and Engineering, University of Hull HU6 7RX UK
| | - Anish Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia.,Center of Excellence for Advanced Materials Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University Jeddah 21589 Saudi Arabia.,Center of Excellence for Advanced Materials Research, King Abdulaziz University Jeddah 21589 Saudi Arabia
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8
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Self-Assembled Monolayers Coated Porous SnO 2 Film Gas Sensor with Reduced Humidity Influence. SENSORS 2021; 21:s21020610. [PMID: 33477265 PMCID: PMC7829704 DOI: 10.3390/s21020610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 11/16/2022]
Abstract
Metal-oxide sensors, detect gas through the reaction of surface oxygen molecules with target gases, are promising for the detection of toxic pollutant gases, combustible gases, and organic vapors; however, their sensitivity, selectivity, and long-term stability limit practical applications. Porous structure for increasing surface area, adding catalyst, and altering the operation temperature are proposed for enhancing the sensitivity and selectivity. Although humidity can significantly affect the property and stability of the sensors, studies focusing on the long-term stability of gas sensors are scarce. To reduce the effects of humidity, 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (PFOTS) was coated on a porous SnO2 film. The interconnected SnO2 nanowires improved the high surface area, and the PFOTS coating provided superhydrophobicity at water contact angle of 159°and perfect water vapor repellency inside E-SEM. The superhydrophobic porous morphology was maintained under relative humidity of 99% and operating temperature of 300 °C. The CO gas sensing of 5, 20, and 50 ppm were obtained with linearity at various humidity. Flame detection was also achieved with practical high humidity conditions. These results suggest the simple way for reliable sensing of nanostructured metal-oxide gas sensors with high sensitivity and long-term stability even in highly humid environments.
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9
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Din SU, Haq MU, Sajid M, Khatoon R, Chen X, Li L, Zhang M, Zhu L. Development of high-performance sensor based on NiO/SnO 2 heterostructures to study sensing properties towards various reducing gases. NANOTECHNOLOGY 2020; 31:395502. [PMID: 32485683 DOI: 10.1088/1361-6528/ab98bb] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we report the spontaneous formation of NiO nanoparticles-decorated onto smooth SnO2 nanofibers, which is an inexpensive and scalable method for yielding a high composite surface area via a simple two-step synthesis process based on electrospinning and the hydrothermal method. A Nickel Oxide proton-conducting electrolyte is deposited homogeneously over a large surface area in a transparent solution, mixed and decorated onto Tin dioxide nanofibers, as evidenced by cross sectional imaging of the electrospun nanofibers. The composite based on nanoparticle-decorated fibers enlarges the surface area of the exposed electrolyte, which fundamentally improves the overall gas sensing performance. The crystal structure, morphology, and physio-chemical surface state of the NiO/SnO2-based specimen are comprehensively examined using XRD, SEM, TEM, HRTEM, EDX, and photoelectron (XPS) spectroscopy. The composite based on NiO/SnO2 nanoparticle-decorated fibers exhibits an optimistic mesoporous nature with a huge specific area, which is key for superior gas sensors. The result reveals that NiO/SnO2 nanoparticle-decorated fibers with an average size of 180-260 nm in diameter, where the average length of fibers was about 1.5 μm. The composite-based heterojunction of NiO/SnO2 nanoparticle-decorated fibers enhances the adsorption of oxygen molecules, which show fast response, good selectivity and quick recovery speed against ethanol gas at an optimal temperature of about 160 °C. The maximum sensitivity response of the sensor-based composite NiO/SnO2 nanoparticle-decorated fibers was 23.87 in respect of 100 ppm ethanol gas at a low temperature of 160 °C; this is approximately about 7.2 times superior to that of pure SnO2 nanofibers. The superior gas sensing capabilities of a composite based on NiO/SnO2 nanoparticle-decorated fibers may be attributable to the enhanced catalytic effect of the small sized NiO nanoparticles on smooth SnO2 nanofibers, together with the p/n heterojunction effects between NiO and SnO2 heterostructures.
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Affiliation(s)
- Salah Ud Din
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Cyrus Tang Center for Sensor Materials and Applications, Zhejiang University, Hangzhou 310027, People's Republic of China
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10
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Song L, Dou K, Wang R, Leng P, Luo L, Xi Y, Kaun CC, Han N, Wang F, Chen Y. Sr-Doped Cubic In 2O 3/Rhombohedral In 2O 3 Homojunction Nanowires for Highly Sensitive and Selective Breath Ethanol Sensing: Experiment and DFT Simulation Studies. ACS APPLIED MATERIALS & INTERFACES 2020; 12:1270-1279. [PMID: 31822058 DOI: 10.1021/acsami.9b15928] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In recent years, it is urgent and challenging to fabricate highly sensitive and selective gas sensors for breath analyses. In this work, Sr-doped cubic In2O3/rhombohedral In2O3 homojunction nanowires (NWs) are synthesized by one-step electrospun technology. The Sr doping alters the cubic phase of pure In2O3 into the rhombohedral phase, which is verified by the high-resolution transmittance electron microscopy, X-ray diffraction, and Raman spectroscopy, and is attributable to the low cohesive energy as calculated by the density functional theory (DFT). As a proof-of-concept of fatty liver biomarker sensing, ethanol sensors are fabricated using the electrospun In2O3 NWs. The results show that 8 wt % Sr-doped In2O3 shows the highest ethanol sensing performance with a high response of 21-1 ppm, a high selectivity over other interfering gases such as methanol, acetone, formaldehyde, toluene, xylene, and benzene, a high stability measured in 6 weeks, and also a high resistance to high humidity of 80%. The outstanding ethanol sensing performance is attributable to the enhanced ethanol adsorption by Sr doping as calculated by DFT, the stable rhombohedral phase and the preferred (104) facet exposure, and the formed homojunctions favoring the electron transfer. All these results show the effective structural modification of In2O3 by Sr doping, and also the great potency of the homojunction Sr-doped In2O3 NWs for highly sensitive, selective, and stable breath ethanol sensing.
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Affiliation(s)
- Longfei Song
- College of Physics and Cultivation Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
- State Key Laboratory of Multiphase Complex Systems , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , China
| | - Kunpeng Dou
- College of Information Science and Engineering , Ocean University of China , Qingdao 266100 , China
| | - Rongrong Wang
- Department of Pharmacy , The Affiliated Hospital of Qingdao University , Qingdao 266003 , China
| | - Ping Leng
- Department of Pharmacy , The Affiliated Hospital of Qingdao University , Qingdao 266003 , China
| | - Linqu Luo
- College of Physics and Cultivation Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Yan Xi
- College of Physics and Cultivation Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Chao-Cheng Kaun
- Research Center for Applied Sciences , Academia Sinica , Taipei 11529 , Taiwan
| | - Ning Han
- State Key Laboratory of Multiphase Complex Systems , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , China
| | - Fengyun Wang
- College of Physics and Cultivation Base for State Key Laboratory , Qingdao University , Qingdao 266071 , China
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex Systems , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , China
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11
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Ao D, Li Z, Fu Y, Tang Y, Yan S, Zu X. Heterostructured NiO/ZnO Nanorod Arrays with Significantly Enhanced H 2S Sensing Performance. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E900. [PMID: 31226830 PMCID: PMC6630611 DOI: 10.3390/nano9060900] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 11/22/2022]
Abstract
H2S gas sensors were fabricated using p-n heterojunctions of NiO/ZnO, in which the ZnO nanorod arrays were wrapped with NiO nanosheets via a hydrothermal synthesis method. When the H2S gas molecules were adsorbed and then oxidized on the ZnO surfaces, the free electrons were released. The increase in the electron concentration on the ZnO boosts the transport speed of the electrons on both sides of the NiO/ZnO p-n junction, which significantly improved the sensing performance and selectivity for H2S detection, if compared with sensors using the pure ZnO nanorod arrays. The response to 20 ppm of H2S was 21.3 at 160 °C for the heterostructured NiO/ZnO sensor, and the limit of detection was 0.1 ppm. We found that when the sensor was exposed to H2S at an operating temperature below 160 °C, the resistance of the sensor significantly decreased, indicating its n-type semiconductor nature, whereas when the operating temperature was above 160 °C, the resistance significantly increased, indicating its p-type semiconductor nature. The sensing mechanism of the NiO/ZnO heterostructured H2S gas sensor was discussed in detail.
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Affiliation(s)
- Dongyi Ao
- School of Physical, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Zhijie Li
- School of Physical, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Yongqing Fu
- Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK.
| | - Yongliang Tang
- School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China.
| | - Shengnan Yan
- School of Physical, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Xiaotao Zu
- School of Physical, University of Electronic Science and Technology of China, Chengdu 610054, China.
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12
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Cho SY, Jang D, Kang H, Koh HJ, Choi J, Jung HT. Ten Nanometer Scale WO3/CuO Heterojunction Nanochannel for an Ultrasensitive Chemical Sensor. Anal Chem 2019; 91:6850-6858. [DOI: 10.1021/acs.analchem.9b01089] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Soo-Yeon Cho
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Doohyung Jang
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hohyung Kang
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hyeong-Jun Koh
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Junghoon Choi
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for NanoCentury, Yuseong-gu, Daejeon 34141, Republic of Korea
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13
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Yao D, Wang Y, Hassan-Legault K, Li A, Zhao Y, Lv J, Huang S, Ma X. Balancing Effect between Adsorption and Diffusion on Catalytic Performance Inside Hollow Nanostructured Catalyst. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00282] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Dawei Yao
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yue Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Katherine Hassan-Legault
- Department of Chemical and Biological Engineering, University of Ottawa, Ontario K1N 6N5, Canada
| | - Antai Li
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Yujun Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Jing Lv
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Shouying Huang
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Xinbin Ma
- Key Laboratory for Green Chemical Technology of Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, People’s Republic of China
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Niu G, Zhao C, Gong H, Yang Z, Leng X, Wang F. NiO nanoparticle-decorated SnO 2 nanosheets for ethanol sensing with enhanced moisture resistance. MICROSYSTEMS & NANOENGINEERING 2019; 5:21. [PMID: 31123595 PMCID: PMC6526161 DOI: 10.1038/s41378-019-0060-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 02/13/2019] [Accepted: 03/18/2019] [Indexed: 05/16/2023]
Abstract
In a high relative humidity (RH) environment, it is challenging for ethanol sensors to maintain a high response and excellent selectivity. Herein, tetragonal rutile SnO2 nanosheets decorated with NiO nanoparticles were synthesized by a two-step hydrothermal process. The NiO-decorated SnO2 nanosheet-based sensors displayed a significantly improved sensitivity and excellent selectivity to ethanol gas. For example, the 3 mol% NiO-decorated SnO2 (SnO2-3Ni) sensor reached its highest response (153 at 100 ppm) at an operating temperature of 260 °C. Moreover, the SnO2-3Ni sensor had substantially improved moisture resistance. The excellent properties of the sensors can be attributed to the uniform dispersion of the NiO nanoparticles on the surface of the SnO2 nanosheets and the formation of NiO-SnO2 p-n heterojunctions. Considering the long-term stability and reproducibility of these sensors, our study suggests that the NiO nanoparticle-decorated SnO2 nanosheets are a promising material for highly efficient detection of ethanol.
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Affiliation(s)
- Gaoqiang Niu
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Changhui Zhao
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Huimin Gong
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Zhitao Yang
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Xiaohui Leng
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055 China
| | - Fei Wang
- School of Microelectronics, Southern University of Science and Technology, Shenzhen, 518055 China
- Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, 518055 China
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15
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Jang JS, Lim YW, Kim DH, Lee D, Koo WT, Lee H, Bae BS, Kim ID. Glass-Fabric Reinforced Ag Nanowire/Siloxane Composite Heater Substrate: Sub-10 nm Metal@Metal Oxide Nanosheet for Sensitive Flexible Sensing Platform. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1802260. [PMID: 30589512 DOI: 10.1002/smll.201802260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/15/2018] [Indexed: 06/09/2023]
Abstract
The development of flexible chemiresistors is imperative for real-time monitoring of air quality and/or human physical conditions without space constraints. However, critical challenges such as poor sensing characteristics, vulnerability under toxic chemicals, and weak reliability hinder their practical use. In this work, for the first time, an ultrasensitive flexible sensing platform is reported by assembling Pt loaded thin-layered (≈10 nm) SnO2 nanosheets (Pt-SnO2 NSs) based 2D sensing layers on Ag nanowires embedded glass-fabric reinforced vinyl-phenyl siloxane hybrid composite substrate (AgNW-GFRVPH film) as a heater. The thermally stable AgNW-GFRVPH film based heater is fabricated by free radical polymerization of vinyl groups in vinyl-phenyl oligosiloxane and phenyltris(dimethylvinylsiloxy)silane with Ag NW and glass-fabric, showing outstanding heat generation (≈200 °C), high dimensional stability (13 ppm °C-1), and good thermal stability (≈350 °C). The Pt-SnO2 NSs, which are synthesized by calcination of Sn precursor coated graphene oxide (GO) sheets and subsequent Pt functionalization, exhibit high mechanical flexibility and superior response (Rair/Rgas = 4.84) to 1 ppm level dimethyl sulfide. Taking these advantages, GO-templated oxide NSs combined with a highly stable AgNW-GFRVPH film heater exhibits the best dimethyl sulfide sensing performance compared to state-of-the-art flexible chemiresistors, enabling them as a superior flexible gas sensing platform.
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Affiliation(s)
- Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young-Woo Lim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Daewon Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
- Carbon Resources Institute Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Won-Tae Koo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hyunhwan Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
| | - Byeong-Soo Bae
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Republic of Korea
- Advanced Nanosensor Research Center, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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16
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Abozeid MA, Hassan HS, Morsi I, Kashyout AB. Development of Nano-
$$\hbox {WO}_{3}$$
WO
3
Doped with NiO for Wireless Gas Sensors. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2018. [DOI: 10.1007/s13369-018-3608-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Liu H, Wei D, Yan Y, Li A, Chuai X, Lu G, Wang Y. Silver Nanowire Templating Synthesis of Mesoporous SnO
2
Nanotubes: An Effective Gas Sensor for Methanol with a Rapid Response and Recovery. ChemistrySelect 2018. [DOI: 10.1002/slct.201801663] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Huali Liu
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012, P. R. China
| | - Dongdong Wei
- State Key Laboratory on Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University Changchun 130012, P. R. China
| | - Yan Yan
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012, P. R. China
| | - Ang Li
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012, P. R. China
| | - Xiaohong Chuai
- State Key Laboratory on Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University Changchun 130012, P. R. China
| | - Geyu Lu
- State Key Laboratory on Integrated OptoelectronicsCollege of Electronic Science and EngineeringJilin University Changchun 130012, P. R. China
| | - Yu Wang
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryJilin University Changchun 130012, P. R. China
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18
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Zhu H, Li Q, Ren Y, Gao Q, Chen J, Wang N, Deng J, Xing X. A New Insight into Cross-Sensitivity to Humidity of SnO 2 Sensor. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703974. [PMID: 29377613 DOI: 10.1002/smll.201703974] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 05/25/2023]
Abstract
The efficiency of gas sensors varies enormously from fundamental study to practical application. This big gap comes mainly from the complex and unpredictable effect of atmospheric environment, especially in humidity. Here, the cross-sensitivity to humidity of a SnO2 sensor from local structural and lattice evolutions is studied. The sensing response of ethanol is found to be efficiently activated by adsorbing trace of water but inhibited as humidity increases. By X-ray diffraction, pair distribution function of synchrotron and ab initio calculations, the independent effect of water and ethanol on lattice and local structure are clearly revealed, which elucidate the intricate sensing reactions. The formation of hydrogen bonds and repulsion of ethoxides play key roles in the structural distortions, and also in adsorption energies that are critical to the sensitive behavior. The results show the sensor performance coupled with local structural evolution, which provides a new insight into the controversial effects of humidity on SnO2 sensors.
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Affiliation(s)
- He Zhu
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qiang Li
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Yang Ren
- Argonne National Laboratory, X-Ray Science Division, Argonne, IL, 60439, USA
| | - Qilong Gao
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jun Chen
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Na Wang
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Jinxia Deng
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Xianran Xing
- Department of Physical Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
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19
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Liu C, Zhao L, Wang B, Sun P, Wang Q, Gao Y, Liang X, Zhang T, Lu G. Acetone gas sensor based on NiO/ZnO hollow spheres: Fast response and recovery, and low (ppb) detection limit. J Colloid Interface Sci 2017; 495:207-215. [DOI: 10.1016/j.jcis.2017.01.106] [Citation(s) in RCA: 155] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 11/16/2022]
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20
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Ganter P, Schoop LM, Lotsch BV. Toward Tunable Photonic Nanosheet Sensors: Strong Influence of the Interlayer Cation on the Sensing Characteristics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1604884. [PMID: 27918108 DOI: 10.1002/adma.201604884] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 10/21/2016] [Indexed: 06/06/2023]
Abstract
An approach toward intercalant tunable nanosheet-based Fabry-Pérot sensors is presented. The intercalant tetrabutylammonium significantly increases the sensitivity of the photonic nose sensor to volatile organic compounds with increasing polarity, enabling polarity-driven color-coded vapor differentiation. Paired with the improved millisecond response times for polar vapors, vapor imaging with spatio-temporal resolution is within reach.
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Affiliation(s)
- Pirmin Ganter
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany
- Department of Chemistry, Ludwig-Maximilians-Universität (LMU), Butenandtstrasse 5-13, 81377, Munich, Germany
| | - Leslie M Schoop
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany
| | - Bettina V Lotsch
- Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany
- Department of Chemistry, Ludwig-Maximilians-Universität (LMU), Butenandtstrasse 5-13, 81377, Munich, Germany
- Nanosystems Initiative Munich (NIM) and Center for Nanoscience, Schellingstraße 4, 80799, Munich, Germany
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21
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Chowdhury R, Barah N, Rashid MH. Facile Biopolymer Assisted Synthesis of Hollow SnO2Nanostructures and Their Application in Dye Removal. ChemistrySelect 2016. [DOI: 10.1002/slct.201600730] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rakesh Chowdhury
- Department of Chemistry; Rajiv Gandhi University; Rono Hills Doimukh 791 112, Arunachal Pradesh, India
| | - Nilotpal Barah
- Department of Chemistry; Rajiv Gandhi University; Rono Hills Doimukh 791 112, Arunachal Pradesh, India
| | - Md. Harunar Rashid
- Department of Chemistry; Rajiv Gandhi University; Rono Hills Doimukh 791 112, Arunachal Pradesh, India
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22
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Cho SY, Yoo HW, Kim JY, Jung WB, Jin ML, Kim JS, Jeon HJ, Jung HT. High-Resolution p-Type Metal Oxide Semiconductor Nanowire Array as an Ultrasensitive Sensor for Volatile Organic Compounds. NANO LETTERS 2016; 16:4508-4515. [PMID: 27304752 DOI: 10.1021/acs.nanolett.6b01713] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The development of high-performance volatile organic compound (VOC) sensor based on a p-type metal oxide semiconductor (MOS) is one of the important topics in gas sensor research because of its unique sensing characteristics, namely, rapid recovery kinetics, low temperature dependence, high humidity or thermal stability, and high potential for p-n junction applications. Despite intensive efforts made in this area, the applications of such sensors are hindered because of drawbacks related to the low sensitivity and slow response or long recovery time of p-type MOSs. In this study, the VOC sensing performance of a p-type MOS was significantly enhanced by forming a patterned p-type polycrystalline MOS with an ultrathin, high-aspect-ratio (∼25) structure (∼14 nm thickness) composed of ultrasmall grains (∼5 nm size). A high-resolution polycrystalline p-type MOS nanowire array with a grain size of ∼5 nm was fabricated by secondary sputtering via Ar(+) bombardment. Various p-type nanowire arrays of CuO, NiO, and Cr2O3 were easily fabricated by simply changing the sputtering material. The VOC sensor thus fabricated exhibited higher sensitivity (ΔR/Ra = 30 at 1 ppm hexane using NiO channels), as well as faster response or shorter recovery time (∼30 s) than that of previously reported p-type MOS sensors. This result is attributed to the high resolution and small grain size of p-type MOSs, which lead to overlap of fully charged zones; as a result, electrical properties are predominantly determined by surface states. Our new approach may be used as a route for producing high-resolution MOSs with particle sizes of ∼5 nm within a highly ordered, tall nanowire array structure.
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Affiliation(s)
- Soo-Yeon Cho
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
| | - Hae-Wook Yoo
- The Fourth R&D Institute, Agency for Defense Development , Yuseong-gu, Daejeon 305-600, Korea
| | - Ju Ye Kim
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
| | - Woo-Bin Jung
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
| | - Ming Liang Jin
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
| | - Jong-Seon Kim
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
| | - Hwan-Jin Jeon
- Department of Nano-Structured Materials Research, Korea National Nanofab Center , Yuseong-gu, Daejeon 305-701, Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering (BK-21 Plus), Korea Advanced Institute of Science and Technology (KAIST) , Yuseong-gu, Daejeon 305-701, Korea
- KAIST Institute for Nanocentury , Yuseong-gu, Daejeon 305-701, Korea
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23
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Wang Z, Nayak PK, Caraveo-Frescas JA, Alshareef HN. Recent Developments in p-Type Oxide Semiconductor Materials and Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:3831-3892. [PMID: 26879813 DOI: 10.1002/adma.201503080] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 10/21/2015] [Indexed: 06/05/2023]
Abstract
The development of transparent p-type oxide semiconductors with good performance may be a true enabler for a variety of applications where transparency, power efficiency, and greater circuit complexity are needed. Such applications include transparent electronics, displays, sensors, photovoltaics, memristors, and electrochromics. Hence, here, recent developments in materials and devices based on p-type oxide semiconductors are reviewed, including ternary Cu-bearing oxides, binary copper oxides, tin monoxide, spinel oxides, and nickel oxides. The crystal and electronic structures of these materials are discussed, along with approaches to enhance valence-band dispersion to reduce effective mass and increase mobility. Strategies to reduce interfacial defects, off-state current, and material instability are suggested. Furthermore, it is shown that promising progress has been made in the performance of various types of devices based on p-type oxides. Several innovative approaches exist to fabricate transparent complementary metal oxide semiconductor (CMOS) devices, including novel device fabrication schemes and utilization of surface chemistry effects, resulting in good inverter gains. However, despite recent developments, p-type oxides still lag in performance behind their n-type counterparts, which have entered volume production in the display market. Recent successes along with the hurdles that stand in the way of commercial success of p-type oxide semiconductors are presented.
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Affiliation(s)
- Zhenwei Wang
- Materials Science & Engineering, King Abdullah University of Science & Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Pradipta K Nayak
- Materials Science & Engineering, King Abdullah University of Science & Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Jesus A Caraveo-Frescas
- Materials Science & Engineering, King Abdullah University of Science & Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Husam N Alshareef
- Materials Science & Engineering, King Abdullah University of Science & Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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24
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Lee CS, Dai Z, Jeong SY, Kwak CH, Kim BY, Kim DH, Jang HW, Park JS, Lee JH. Monolayer Co3O4Inverse Opals as Multifunctional Sensors for Volatile Organic Compounds. Chemistry 2016; 22:7102-7. [DOI: 10.1002/chem.201505210] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Indexed: 01/25/2023]
Affiliation(s)
- Chul-Soon Lee
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
| | - Zhengfei Dai
- Department of Chemistry; Kyoto University, Yoshidahonmachi, Sakyo Ward; Kyoto 606-8501 Japan
| | - Seong-Yong Jeong
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
| | - Chang-Hoon Kwak
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
| | - Bo-Young Kim
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
| | - Do Hong Kim
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
- Department of Materials Science Engineering; Research Institute of Advanced Materials; Seoul National University; 1, Gwanak-ru, Gwanak-gu Seoul 08826 Korea
| | - Ho Won Jang
- Department of Materials Science Engineering; Research Institute of Advanced Materials; Seoul National University; 1, Gwanak-ru, Gwanak-gu Seoul 08826 Korea
| | - Joon-Shik Park
- Smart Convergence Sensor Research Center; Korea Electronics Technology Institute; 25, Saenari-ro, Bundang-gu, Seongnam-si Gyeonggi-do 13509 Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering; Korea University; 145, Anam-ro, Seongbuk-gu Seoul 02841 Korea
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25
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Kelp G, Tätte T, Pikker S, Mändar H, Rozhin AG, Rauwel P, Vanetsev AS, Gerst A, Merisalu M, Mäeorg U, Natali M, Persson I, Kessler VG. Self-assembled SnO2 micro- and nanosphere-based gas sensor thick films from an alkoxide-derived high purity aqueous colloid precursor. NANOSCALE 2016; 8:7056-7067. [PMID: 26960813 DOI: 10.1039/c5nr07942j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tin oxide is considered to be one of the most promising semiconductor oxide materials for use as a gas sensor. However, a simple route for the controllable build-up of nanostructured, sufficiently pure and hierarchical SnO2 structures for gas sensor applications is still a challenge. In the current work, an aqueous SnO2 nanoparticulate precursor sol, which is free of organic contaminants and sorbed ions and is fully stable over time, was prepared in a highly reproducible manner from an alkoxide Sn(OR)4 just by mixing it with a large excess of pure neutral water. The precursor is formed as a separate liquid phase. The structure and purity of the precursor is revealed using XRD, SAXS, EXAFS, HRTEM imaging, FTIR, and XRF analysis. An unconventional approach for the estimation of the particle size based on the quantification of the Sn-Sn contacts in the structure was developed using EXAFS spectroscopy and verified using HRTEM. To construct sensors with a hierarchical 3D structure, we employed an unusual emulsification technique not involving any additives or surfactants, using simply the extraction of the liquid phase, water, with the help of dry butanol under ambient conditions. The originally generated crystalline but yet highly reactive nanoparticles form relatively uniform spheres through self-assembly and solidify instantly. The spheres floating in butanol were left to deposit on the surface of quartz plates bearing sputtered gold electrodes, producing ready-for-use gas sensors in the form of ca. 50 μm thick sphere-based-films. The films were dried for 24 h and calcined at 300 °C in air before use. The gas sensitivity of the structures was tested in the temperature range of 150-400 °C. The materials showed a very quickly emerging and reversible (20-30 times) increase in electrical conductivity as a response to exposure to air containing 100 ppm of H2 or CO and short (10 s) recovery times when the gas flow was stopped.
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Affiliation(s)
- G Kelp
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia. and Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - T Tätte
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia.
| | - S Pikker
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia.
| | - H Mändar
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia.
| | - A G Rozhin
- Aston University, Aston Triangle, Birmingham, B4 7ET, UK
| | - P Rauwel
- Department of Physics, Centre for Materials Science and Nanotechnology, University of Oslo, PO Box 1048 Blindern, N-0316 Oslo, Norway
| | - A S Vanetsev
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia. and General Physics Institute RAS, 38 Vavilov str., 119991, Moscow, Russia
| | - A Gerst
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia.
| | - M Merisalu
- Institute of Physics, University of Tartu, Ravila 14C, 50411, Tartu, Estonia.
| | - U Mäeorg
- Institute of Chemistry, University of Tartu, Ravila 14A, 50441, Tartu, Estonia
| | - M Natali
- ICIS-CNR, CorsoStatiUniti 4, 35127 Padova, Italy
| | - I Persson
- Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-756 51 Uppsala, Sweden
| | - V G Kessler
- Department of Chemistry and Biotechnology, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-756 51 Uppsala, Sweden
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26
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Jeong HM, Kim JH, Jeong SY, Kwak CH, Lee JH. Co3O4-SnO2 Hollow Heteronanostructures: Facile Control of Gas Selectivity by Compositional Tuning of Sensing Materials via Galvanic Replacement. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7877-83. [PMID: 26964735 DOI: 10.1021/acsami.6b00216] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Co3O4 hollow spheres prepared by ultrasonic spray pyrolysis were converted into Co3O4-SnO2 core-shell hollow spheres by galvanic replacement with subsequent calcination at 450 °C for 2 h for gas sensor applications. Gas selectivity of the obtained spheres can be controlled by varying the amount of SnO2 shells (14.6, 24.3, and 43.3 at. %) and sensor temperatures. Co3O4 sensors possess an ability to selectively detect ethanol at 275 °C. When the amount of SnO2 shells was increased to 14.6 and 24.3 at. %, highly selective detection of xylene and methylbenzenes (xylene + toluene) was achieved at 275 and 300 °C, respectively. Good selectivity of Co3O4 hollow spheres to ethanol can be explained by a catalytic activity of Co3O4; whereas high selectivity of Co3O4-SnO2 core-shell hollow spheres to methylbenzenes is attributed to a synergistic effect of catalytic SnO2 and Co3O4 and promotion of gas sensing reactions by a pore-size control of microreactors.
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Affiliation(s)
- Hyun-Mook Jeong
- Department of Materials Science and Engineering, Korea University , Seoul 02841, Republic of Korea
| | - Jae-Hyeok Kim
- 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
| | - Chang-Hoon Kwak
- 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
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27
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Jiang TJ, Guo Z, Liu JH, Huang XJ. Gold electrode modified with ultrathin SnO2 nanosheets with high reactive exposed surface for electrochemical sensing of As(III). Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2015.12.196] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Zhang R, Zhou T, Wang L, Lou Z, Deng J, Zhang T. The synthesis and fast ethanol sensing properties of core–shell SnO2@ZnO composite nanospheres using carbon spheres as templates. NEW J CHEM 2016. [DOI: 10.1039/c6nj00365f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A special core–shell SnO2@ZnO composite nanosphere with hollow and porous structures shows excellent ethanol sensing properties.
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Affiliation(s)
- Rui Zhang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Tingting Zhou
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Lili Wang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures
- Institute of Semiconductors
- Chinese Academy of Sciences
- Beijing 100083
- China
| | - Jianan Deng
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
| | - Tong Zhang
- State Key Laboratory on Integrated Optoelectronics
- College of Electronic Science and Engineering
- Jilin University
- Changchun
- China
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29
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Chen Y, Shen Z, Jia Q, Zhao J, Zhao Z, Ji H. A CuO–ZnO nanostructured p–n junction sensor for enhanced N-butanol detection. RSC Adv 2016. [DOI: 10.1039/c5ra20031h] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Herein, a novel CuO–ZnO nanostructured p–n junction composite is prepared via the hydrothermal method.
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Affiliation(s)
- Yalu Chen
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
| | - Zhurui Shen
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
| | - Qianqian Jia
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
| | - Jiang Zhao
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
| | - Zhe Zhao
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
| | - Huiming Ji
- Key Laboratory of Advanced Ceramics and Machining Technology
- Ministry of Education
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
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30
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Sun M, Yin Y, Song C, Wang Y, Xiao J, Qu S, Zheng W, Li C, Dong W, Zhang L. Preparation of Bi2MoO6 Nanomaterials and Theirs Gas-Sensing Properties. J Inorg Organomet Polym Mater 2015. [DOI: 10.1007/s10904-015-0316-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Sun P, Wang C, Liu J, Zhou X, Li X, Hu X, Lu G. Hierarchical Assembly of α-Fe₂O₃ Nanosheets on SnO2₂Hollow Nanospheres with Enhanced Ethanol Sensing Properties. ACS APPLIED MATERIALS & INTERFACES 2015; 7:19119-25. [PMID: 26284283 DOI: 10.1021/acsami.5b04751] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We present the preparation of a hierarchical nanoheterostructure consisting of inner SnO2 hollow spheres (SHS) surrounded by an outer α-Fe2O3 nanosheet (FNS). Deposition of the FNS on the SHS outer surface was achieved by a facile microwave hydrothermal reaction to generate a double-shell SHS@FNS nanostructure. Such a composite with novel heterostructure acted as a sensing material for gas sensors. Significantly, the hierarchical composites exhibit excellent sensing performance toward ethanol, which is superior to the single component (SHS), mainly because of the synergistic effect and heterojunction.
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Affiliation(s)
- Peng Sun
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Chen Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Jiangyang Liu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Xin Zhou
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Xiaowei Li
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Xiaolong Hu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
| | - Geyu Lu
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University , Changchun 130012, People's Republic of China
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32
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Synthesis of ZnGa2O4 assisted by high-energy ball milling and its gas-sensing characteristics. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.04.041] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Wang L, Lou Z, Deng J, Zhang R, Zhang T. Ethanol Gas Detection Using a Yolk-Shell (Core-Shell) α-Fe2O3 Nanospheres as Sensing Material. ACS APPLIED MATERIALS & INTERFACES 2015; 7:13098-104. [PMID: 26010465 DOI: 10.1021/acsami.5b03978] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Three-dimensional (3D) nanostructures of α-Fe2O3 materials, including both hollow sphere-shaped and yolk-shell (core-shell)-shaped, have been successfully synthesized via an environmentally friendly hydrothermal approach. By expertly adjusting the reaction time, the solid, hollow, and yolk-shell shaped α-Fe2O3 can be selectively synthesized. Yolk-shell α-Fe2O3 nanospheres display outer diameters of 350 nm, and the interstitial hollow spaces layer is intimately sandwiched between the inner and outer shell of α-Fe2O3 nanostructures. The possible growth mechanism of the yolk-shell nanostructure is proposed. The results showed that the well-defined bilayer interface effectively enhanced the sensing performance of the α-Fe2O3 nanostructures (i.e., yolk-shell α-Fe2O3@α-Fe2O3), owing predominantly to the unique nanostructure, thus facilitated the transport rate and augmented the adsorption quantity of the target gas molecule under gas detection.
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Affiliation(s)
- LiLi Wang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Zheng Lou
- ‡State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
| | - Jianan Deng
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Rui Zhang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
| | - Tong Zhang
- †State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, PR China
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34
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Xu L, Dai Z, Duan G, Guo L, Wang Y, Zhou H, Liu Y, Cai W, Wang Y, Li T. Micro/Nano gas sensors: a new strategy towards in-situ wafer-level fabrication of high-performance gas sensing chips. Sci Rep 2015; 5:10507. [PMID: 26001035 PMCID: PMC5377049 DOI: 10.1038/srep10507] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 04/15/2015] [Indexed: 11/09/2022] Open
Abstract
Nano-structured gas sensing materials, in particular nanoparticles, nanotubes, and nanowires, enable high sensitivity at a ppb level for gas sensors. For practical applications, it is highly desirable to be able to manufacture such gas sensors in batch and at low cost. We present here a strategy of in-situ wafer-level fabrication of the high-performance micro/nano gas sensing chips by naturally integrating microhotplatform (MHP) with nanopore array (NPA). By introducing colloidal crystal template, a wafer-level ordered homogenous SnO2 NPA is synthesized in-situ on a 4-inch MHP wafer, able to produce thousands of gas sensing units in one batch. The integration of micromachining process and nanofabrication process endues micro/nano gas sensing chips at low cost, high throughput, and with high sensitivity (down to ~20 ppb), fast response time (down to ~1 s), and low power consumption (down to ~30 mW). The proposed strategy of integrating MHP with NPA represents a versatile approach for in-situ wafer-level fabrication of high-performance micro/nano gas sensors for real industrial applications.
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Affiliation(s)
- Lei Xu
- 1] Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China [2] California Institute of Technology, Pasadena, California 91125, USA
| | - Zhengfei Dai
- Key Lab of Materials Physics, Anhui Key lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Guotao Duan
- Key Lab of Materials Physics, Anhui Key lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Lianfeng Guo
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Yi Wang
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Hong Zhou
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Yanxiang Liu
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Weiping Cai
- Key Lab of Materials Physics, Anhui Key lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, China
| | - Yuelin Wang
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
| | - Tie Li
- Science and Technology on Micro-system Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China
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35
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Choi SJ, Choi C, Kim SJ, Cho HJ, Jeon S, Kim ID. Facile synthesis of hierarchical porous WO3 nanofibers having 1D nanoneedles and their functionalization with non-oxidized graphene flakes for selective detection of acetone molecules. RSC Adv 2015. [DOI: 10.1039/c4ra13791d] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hierarchical and porous one-dimensional (1D) nonwoven WO3 nanofibers were synthesized by electrospinning and controlled two-step heat-treatment, and are applicable for diabetes diagnostic sensors by selective detection of breath acetone.
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Affiliation(s)
- Seon-Jin Choi
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Chanyong Choi
- Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury
- Korea Advanced Institute of Science and Technology
- Daejeon 305-701, Republic of Korea
| | - Sang-Joon Kim
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Hee-Jin Cho
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Seokwoo Jeon
- Department of Materials Science and Engineering and Graphene Research Center of KI for the NanoCentury
- Korea Advanced Institute of Science and Technology
- Daejeon 305-701, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
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36
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Tian J, Pan F, Xue R, Zhang W, Fang X, Liu Q, Wang Y, Zhang Z, Zhang D. A highly sensitive room temperature H2S gas sensor based on SnO2 multi-tube arrays bio-templated from insect bristles. Dalton Trans 2015; 44:7911-6. [DOI: 10.1039/c5dt00354g] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tin oxide multi-tube array with a parallel effect was fabricated, which exhibited high sensitivity to H2S gas at room temperature.
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Affiliation(s)
- Junlong Tian
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Feng Pan
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Ruiyang Xue
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Wang Zhang
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Xiaotian Fang
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Qinglei Liu
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Yuhua Wang
- Department of Prosthodontics
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
| | - Zhijian Zhang
- Jushi Fiberglass Research Institute
- Zhejiang Key Laboratory for Fiberglass Research
- Jushi Group Co
- Ltd
- Zhejiang
| | - Di Zhang
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai
- P. R. China
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37
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Choi SJ, Kim MP, Lee SJ, Kim BJ, Kim ID. Facile Au catalyst loading on the inner shell of hollow SnO2 spheres using Au-decorated block copolymer sphere templates and their selective H2S sensing characteristics. NANOSCALE 2014; 6:11898-11903. [PMID: 25175492 DOI: 10.1039/c4nr03706e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hollow SnO2 spheres functionalized by Au catalysts were synthesized via the use of Au-decorated block copolymer (Au-BCP) sphere templates. Uniformly distributed Au nanoparticles on BCP spheres were prepared by the infiltration of Au precursors into polystyrene-b-poly(4-vinylpyridine) (PS-b-P4VP) spheres. A thin SnO2 layer was coated on the Au-BCP spheres using RF sputtering at room temperature without morphological deformation of the spheres. The Au nanoparticles were uniformly transferred from the Au-BCP spheres to the inner shells of the hollow SnO2 spheres followed by decomposition of BCP spheres. The Au-loaded hollow SnO2 spheres exhibited a superior H2S sensitivity (Rair/Rgas = 17.4 at 5 ppm) with remarkably selective characteristics with a minor response (Rair/Rgas < 2.5 at 5 ppm) toward other interfering gases. Our results pave the way for a new catalyst loading method using Au-BCP spheres for the uniformly distributed Au NPs on the SnO2 layers.
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Affiliation(s)
- Seon-Jin Choi
- Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea.
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38
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Rai P, Yoon JW, Jeong HM, Hwang SJ, Kwak CH, Lee JH. Design of highly sensitive and selective Au@NiO yolk-shell nanoreactors for gas sensor applications. NANOSCALE 2014; 6:8292-9. [PMID: 24933405 DOI: 10.1039/c4nr01906g] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Au@NiO yolk-shell nanoparticles (NPs) were synthesized by simple solution route and applied for efficient gas sensor towards H₂S gas. Carbon encapsulated Au (Au@C core-shell) NPs were synthesized by glucose-assisted hydrothermal method, whereas Au@NiO yolk-shell NPs were synthesized by precipitation method using Au@C core-shell NPs as a template. Sub-micrometer Au@NiO yolk-shell NPs were formed having 50-70 nm Au NPs at the periphery of NiO shell (10-20 nm), which was composed of 6-12 nm primary NiO particles. Au@NiO yolk-shell NPs showed higher response for H2S compared to other interfering gases (ethanol, p-xylene, NH₃, CO and H₂). The maximum response was 108.92 for 5 ppm of H₂S gas at 300 °C, which was approximately 19 times higher than that for the interfering gases. The response of Au@NiO yolk-shell NPs to H₂S was approximately 4 times higher than that of bare NiO hollow nanospheres. Improved performance of Au@NiO yolk-shell NPs was attributed to hollow spaces that allowed the accessibility of Au NPs to gas molecules. It was suggested that adsorption of H₂S on Au NPs resulted in the formation of sulfide layer, which possibly lowered its work function, and therefore tuned the electron transfer from Au to NiO rather NiO to Au, which leaded to increase in resistance and therefore response.
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Affiliation(s)
- Prabhakar Rai
- Department of Materials Science and Engineering, Korea University, Seoul 136-713, Republic of Korea.
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39
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Wang X, Qiu S, Liu J, He C, Lu G, Liu W. Synthesis of Mesoporous SnO2Spheres and Application in Gas Sensors. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301212] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Choi KI, Hwang SJ, Dai Z, Chan Kang Y, Lee JH. Rh-catalyzed WO3 with anomalous humidity dependence of gas sensing characteristics. RSC Adv 2014. [DOI: 10.1039/c4ra06654e] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
An anomalous humidity dependence of gas sensing characteristics is found for a Rh-loaded WO3 sensor, where the resistance and gas response increased in humid atmospheres.
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Affiliation(s)
- Kwon-Il Choi
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
| | - Su-Jin Hwang
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
| | - Zhengfei Dai
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
| | - Yun Chan Kang
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
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41
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Yoon JW, Hong YJ, Chan Kang Y, Lee JH. High performance chemiresistive H2S sensors using Ag-loaded SnO2 yolk–shell nanostructures. RSC Adv 2014. [DOI: 10.1039/c4ra01364f] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Highly selective, sensitive, and reversible H2S sensors were designed using Ag-loaded SnO2 yolk–shell nanostructures prepared by one-pot ultrasonic spray pyrolysis.
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Affiliation(s)
- Ji-Wook Yoon
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
| | - Young Jun Hong
- Department of Chemical Engineering
- Konkuk University
- Seoul 143-701, Republic of Korea
| | - Yun Chan Kang
- Department of Chemical Engineering
- Konkuk University
- Seoul 143-701, Republic of Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering
- Korea University
- Seoul 136-713, Republic of Korea
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42
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Dai Z, Jia L, Duan G, Li Y, Zhang H, Wang J, Hu J, Cai W. Crack-Free Periodic Porous Thin Films Assisted by Plasma Irradiation at Low Temperature and Their Enhanced Gas-Sensing Performance. Chemistry 2013; 19:13387-95. [DOI: 10.1002/chem.201301137] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 07/03/2013] [Indexed: 11/10/2022]
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43
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Chen X, Liu ZG, Zhao ZQ, Liu JH, Huang XJ. SnO₂ tube-in-tube nanostructures: Cu@C nanocable templated synthesis and their mutual interferences between heavy metal ions revealed by stripping voltammetry. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2233-2239. [PMID: 23364917 DOI: 10.1002/smll.201202673] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Revised: 11/27/2012] [Indexed: 06/01/2023]
Abstract
SnO2 tube-in-tube nanostructures are synthesized using Cu@C nanocables as effective sacrificial templates. It is revealed by stripping voltammetry that SnO2 tube-in-tube nanostructures show excellent performances in the determination of heavy metal ions, which might be related to the extraordinary adsorbing capacities of the hollow structure to metal ions, i.e., metal ions could diffuse into the interior of tubular structure.
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Affiliation(s)
- Xing Chen
- Research Center for Biomimetic Functional, Materials and Sensing Devices, Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031, PR China
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44
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Wang L, Dou H, Lou Z, Zhang T. Encapsuled nanoreactors (Au@SnO₂): a new sensing material for chemical sensors. NANOSCALE 2013; 5:2686-91. [PMID: 23295974 DOI: 10.1039/c2nr33088a] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
New Au@SnO2 yolk-shell nanospheres have been successfully synthesized by using Au@SiO2 nanospheres as sacrificial templates. This process is environmentally friendly and is based on hydrothermal shell-by-shell deposition of polycrystalline SnO2 on spheriform Au@SiO2 nanotemplates. Au nanoparticles can be impregnated into the SnO2 nanospheres and the nanospheres show outer diameters of 110 nm and thicknesses of 15 nm. The possible growth model of the nanospheres is proposed. The gas sensing properties of the Au@SnO2 yolk-shell nanospheres were researched and compared with that of the hollow SnO2 nanospheres. The former shows lower operating temperature (210 °C), lower detection limit (5 ppm), faster response (0.3 s) and better selectivity. These improved sensing properties were attributed to the catalytic effect of Au, and enhanced electron depletion at the surface of the Au@SnO2 yolk-shell nanospheres.
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Affiliation(s)
- Lili Wang
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, China
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45
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Huang J, Wang L, Gu C, Zhai M, Liu J. Preparation of hollow porous Co-doped SnO2 microcubes and their enhanced gas sensing property. CrystEngComm 2013. [DOI: 10.1039/c3ce41148f] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Xiao G, Wang Y, Ning J, Wei Y, Liu B, Yu WW, Zou G, Zou B. Recent advances in IV–VI semiconductor nanocrystals: synthesis, mechanism, and applications. RSC Adv 2013. [DOI: 10.1039/c3ra23209c] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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47
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Wang WS, Zhen L, Xu CY, Shao WZ, Chen ZL. Formation of CdMoO4 porous hollow nanospheres via a self-assembly accompanied with Ostwald ripening process and their photocatalytic performance. CrystEngComm 2013. [DOI: 10.1039/c3ce41562g] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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48
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Wang L, Luo X, Zheng X, Wang R, Zhang T. Direct annealing of electrospun synthesized high-performance porous SnO2 hollow nanofibers for gas sensors. RSC Adv 2013. [DOI: 10.1039/c3ra41032c] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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49
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Liu R, Yang S, Wang F, Lu X, Yang Z, Ding B. Sodium chloride template synthesis of cubic tin dioxide hollow particles for lithium ion battery applications. ACS APPLIED MATERIALS & INTERFACES 2012; 4:1537-1542. [PMID: 22276802 DOI: 10.1021/am201756m] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This paper describes a new synthesis and lithium ion charge-discharge property of tin dioxide (SnO(2)) hollow nanocubes. SnO(2) is one of the best-known anode materials for lithium-ion battery application because of its high lithiation-delithiation capacity. Hollow nanostructures with high surface area are preferred, because they accommodate large volume changes and maintain the structural stability of electrode materials during charge-discharge cycles. The SnO(2) hollow cubes made in this study had a discharge capacity of up to 1783 mA h g(-1) for the initial cycle and 546 mA h g(-1) after 30 cycles at a current density of 0.2 C between 0.02 and 2.0 V (vs Li/Li(+)).
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Affiliation(s)
- Rui Liu
- School of Science, MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, Shaan Xi, Xi'an Jiaotong University, 710049, People's Republic of China
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50
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Bekermann D, Gasparotto A, Barreca D, Maccato C, Comini E, Sada C, Sberveglieri G, Devi A, Fischer RA. Co3O4/ZnO nanocomposites: from plasma synthesis to gas sensing applications. ACS APPLIED MATERIALS & INTERFACES 2012; 4:928-934. [PMID: 22260293 DOI: 10.1021/am201591w] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Herein, we describe the design, fabrication and gas sensing tests of p-Co(3)O(4)/n-ZnO nanocomposites. Specifically, arrays of (001) oriented ZnO nanoparticles were grown on alumina substrates by plasma enhanced-chemical vapor deposition (PECVD) and used as templates for the subsequent PECVD of Co(3)O(4) nanograins. Structural, morphological and compositional analyses evidenced the successful formation of pure and high-area nanocomposites with a tailored overdispersion of Co(3)O(4) particles on ZnO and an intimate contact between the two oxides. Preliminary functional tests for the detection of flammable/toxic analytes (CH(3)COCH(3), CH(3)CH(2)OH, NO(2)) indicated promising sensing responses and the possibility of discriminating between reducing and oxidizing species as a function of the operating temperature.
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Affiliation(s)
- D Bekermann
- Department of Chemistry, Padova University and INSTM, 35131 Padova, Italy
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