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Huo Y, Qiu L, Wang T, Yu H, Yang W, Dong X, Yang Y. P-N Heterojunction formation: Metal Sulfide@Metal Oxide Chemiresistor for ppb H 2S Detection from Exhaled Breath and Food Spoilage at Flexible Room Temperature. ACS Sens 2024; 9:3433-3443. [PMID: 38872232 DOI: 10.1021/acssensors.4c00866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
The development of a portable, low-cost sensor capable of accurately detecting H2S gas in exhaled human breath at room temperature is highly anticipated in the fields of human health assessment and food spoilage evaluation. However, achieving outstanding gas sensing performance and applicability for flexible room-temperature operation with parts per billion H2S gas sensors still poses technical challenges. To address this issue, this study involves the in situ growth of MoS2 nanosheets on the surface of In2O3 fibers to construct a p-n heterojunction. The In2O3@MoS2-2 sensor exhibits a high response of 460.61 to 50 ppm of H2S gas at room temperature, which is 19.5 times higher than that of the pure In2O3 sensor and 322.1 times higher than that of pure MoS2. The In2O3@MoS2-2 also demonstrates a minimum detection limit of 3 ppb and maintains a stable response to H2S gas even after being bent 50 times at a 60° angle. These exceptional gas sensing properties are attributed to the increase in oxygen vacancies and chemisorbed oxygen on In2O3@MoS2-2 nanofibers as well as the formation of the p-n heterojunction, which modulates the heterojunction barrier. Furthermore, in this study, we successfully applied the In2O3@MoS2-2 sensor for oral disease and detection of food spoilage conditions, thereby providing new design insights for the development of portable exhaled gas sensors and gas sensors for evaluating food spoilage conditions at room temperature.
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Affiliation(s)
- Yangyang Huo
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Limin Qiu
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Tianqi Wang
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Hui Yu
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Wenyuan Yang
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Xiangting Dong
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
| | - Ying Yang
- Key Laboratory of Applied Chemistry and Nanotechnology at University of Jilin Province, Changchun University of Science and Technology, Changchun 130022, China
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2
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Lu Z, Pei X, Wang T, Gu K, Yu N, Wang M, Wang J. Oxidation-enabled SnS conversion to two-dimensional porous SnO 2 flakes towards NO 2 gas sensing. Dalton Trans 2024. [PMID: 38269582 DOI: 10.1039/d3dt03597b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Tin dioxide (SnO2)-based electronic materials and gas sensors have attracted extensive attention from academia and industry. Herein we report the preparation of two-dimensional (2D) porous SnO2 flakes by thermal oxidation of 2D SnS flakes that serve as a self-sacrificial template. An oxidation-enabled, temperature-dependent matter conversion from SnS through three-phase SnS-SnS2-SnO2 (400 °C) and two-phase SnS2-SnO2 (600 °C) to pure-phase SnO2 (≥800 °C) is disclosed by means of combined XRD, TG-DSC and XPS studies. Meanwhile, the associated chemical reactions and the mass and heat changes during this solid-state conversion process are clarified. The as-prepared 2D SnO2 flakes exhibit structural porosity with tunable pore sizes and crystallite sizes/crystallinity, resulting in superior potential for NO2 sensing. At the optimized operating temperature of 200 °C, the prototype gas sensors made of porous SnO2 flakes show competitive sensing parameters in a broad NO2 concentration range of 50 ppb-10 ppm in terms of high response, faster response/recovery speeds, and good selectivity and stability. A sensing mechanism involving the adsorption and desorption of NO2/O2 molecules and the possible surface reactions is further rationalized for the SnO2 NO2 gas sensors.
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Affiliation(s)
- Zhiwei Lu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Xiaoxiao Pei
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Tingting Wang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Kewei Gu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Nan Yu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Mingsong Wang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Junli Wang
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, PR China.
- School of Emergency Management, Jiangsu University, Zhenjiang 212013, PR China
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3
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Verma M, Bahuguna G, Singh S, Kumari A, Ghosh D, Haick H, Gupta R. Porous SnO 2 nanosheets for room temperature ammonia sensing in extreme humidity. MATERIALS HORIZONS 2024; 11:184-195. [PMID: 37937438 DOI: 10.1039/d3mh01078c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Gas sensors based on tin dioxide (SnO2) for the detection of ammonia (NH3) have become commercially available for environmental monitoring due to their reactive qualities when exposed to different gaseous pollutants. Nevertheless, their implementation in the medical field has been hindered by certain inherent drawbacks, such as needing to operate at high temperatures, lack of selectivity, unreliable operation under high-humidity conditions, and a lower detection limit. To counter these issues, this study created 2D nanosheets of SnO2 through an optimized solvothermal method. It was found that tuning the precursor solution's pH to either neutral or 14 led to aggregated or distributed, uniform-size nanosheets with a higher crystallinity, respectively. Remarkably, the SnO2 nanosheet sensor (SNS-14) displayed a much lower response to water molecules and specific reactivity to ammonia even when subjected to reducing and oxidizing agents at 25 °C due to the micropores and chemisorbed oxygen on the nanosheets. Furthermore, the SNS-14 was seen to have the highest sensitivity to ammonia at 100 ppm, with rapid response (8 s) and recovery times (55 s) even at a high relative humidity of 70%. Its theoretical detection limit was recorded to be 64 ppt, better than any of the earlier SnO2-based chemiresistive sensors. Its exceptional sensing abilities were credited to its optimal crystallinity, specific surface area, defects, chemisorbed oxygen, and porous structure. NH3-TPD measurements and computational simulations were employed to understand the ammonia interaction with atomistic details on the SnO2 nanosheet surface. A real time breath sensing experiment was simulated to test the efficacy of the sensor. Reaching this advancement is an achievement in bypassing past boundaries of SnO2-centered sensors, making it feasible to detect ammonia with enhanced precision, discrimination, dependability, and velocity for probable usages in medical diagnostics and ecological surveillance.
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Affiliation(s)
- Mohit Verma
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan-342037, India
| | - Gaurav Bahuguna
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan-342037, India
| | - Sukhwinder Singh
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan-342037, India
| | - Ankita Kumari
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
| | - Dibyajyoti Ghosh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
- Department of Materials Science and Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Hossam Haick
- Department of Chemical Engineering and Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Ritu Gupta
- Advanced Materials and Devices Laboratory, Department of Chemistry, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan-342037, India
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India.
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4
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Su PG, Chen YH. Fabrication of conifer-like TiSnO 2 nanorods for sensing H 2S gas at room temperature. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:3975-3983. [PMID: 37534712 DOI: 10.1039/d3ay00963g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Conifer-like TiSnO2 nanorods mixed metal oxide was synthesized via the one-pot polyol method utilizing ethylene glycol (EG), poly(diallyldimethylammonium chloride) (PDDA), tin(II) chloride dihydrate (SnCl2·2H2O), and titanium(IV)-ethylhexanoate (TE) as precursor materials, aimed at room temperature H2S gas sensing. The effects of polyol duration time and capping agent concentration (PDDA) were examined to explore the morphological, structural, and gas-sensing characteristics, as well as to propose potential growth mechanisms of conifer-like TiSnO2 nanorods mixed metal oxide. The morphology and composition of the synthesized TiSnO2 mixed metal oxide were carried out employing scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffractometry (XRD). The experimental findings demonstrated a significant influence of polyol duration time and PDDA concentration on the morphological evolution of the synthesized TiSnO2 mixed metal oxide structures. Comparative gas-sensing analysis indicated that the conifer-like TiSnO2 nanorods mixed metal oxide exhibited the highest response (2.45%) towards H2S gas at a concentration of 1 ppm, along with a low detection limit (0.20 ppm) and good linearity (R2 = 0.9865) within the range of 1-15 ppm of H2S gas at room temperature.
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Affiliation(s)
- Pi-Guey Su
- Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan.
| | - Yan-Han Chen
- Department of Chemistry, Chinese Culture University, Taipei 111, Taiwan.
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Han Z, Tang Y, Lu G, Qi Y, Wu H, Yang Z, Han H, Zhang X, Wu L, Wang Z, Liu J, Wang F. Transition metal elements-doped SnO 2 for ultrasensitive and rapid ppb-level formaldehyde sensing. Heliyon 2023; 9:e13486. [PMID: 36814628 PMCID: PMC9939605 DOI: 10.1016/j.heliyon.2023.e13486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 01/25/2023] [Accepted: 02/01/2023] [Indexed: 02/05/2023] Open
Abstract
Pristine SnO2, Fe-doped SnO2 and Ni-doped SnO2 were synthesized using facile hydrothermal method. Analysis based on XRD, TEM and UV-Vis DRS measurements demonstrated the successful insertion of Fe and Ni dopants into SnO2 crystal. Formaldehyde-detection measurements revealed that transition metal-doped SnO2 exhibited improved formaldehyde-sensing properties compared with that of pristine SnO2. When the amount of incorporated dopant (Fe or Ni) was 4 at.%, the most effective enhancement on sensing performance of SnO2 was obtained. At 160 °C, the 4 at.% Fe-SnO2 and 4 at.% Ni-SnO2 exhibited higher response values of 7.52 and 4.37 with exposure to low-concentration formaldehyde, respectively, which were 2.4 and 1.4 times higher than that of pristine SnO2. The change of electronic structure and crystal structure as well as catalytic effect of transition metals are chiefly responsible for the enhanced sensing properties.
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Affiliation(s)
- Zejun Han
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Yunxiang Tang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Guixia Lu
- School of Civil Engineering, Qingdao University of Technology, Qingdao, Shandong 266033, China,Corresponding author.
| | - Yuan Qi
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Hao Wu
- School of Energy and Environment, City University of Hong Kong, Hong Kong, China
| | - Zhengyi Yang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Hecheng Han
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Xue Zhang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Lili Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China,Corresponding author.
| | - Zhou Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China
| | - Jiurong Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China,Corresponding author.
| | - Fenglong Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China,Shenzhen Research Institute of Shandong University, A301 Virtual University Park in South District of Nanshan High-tech Zone, Shenzhen, China,Corresponding author. Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education, Shandong University, Jinan, Shandong 250061, China.
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6
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Zhu Y, Yang L, Guo S, Hou M, Ma Y. In Situ Synthesis of Hierarchical Flower-like Sn/SnO 2 Heterogeneous Structure for Ethanol GAS Detection. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16020792. [PMID: 36676526 PMCID: PMC9863574 DOI: 10.3390/ma16020792] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 05/20/2023]
Abstract
In this study, morphogenetic-based Sn/SnO2 graded-structure composites were created by synthesizing two-dimensional SnO sheets using a hydrothermal technique, self-assembling into flower-like structures with an average petal width of roughly 3 um. The morphology and structure of the as-synthesized samples were characterized by utilizing SEM, XRD, XPS, etc. The gas-sensing characteristics of gas sensors based on the flower-like Sn/SnO2 were thoroughly researched. The sensor displayed exceptional selectivity, a rapid response time of 4 s, and an ultrahigh response at 250 °C (Ra/Rg = 17.46). The excellent and enhanced ethanol-gas-sensing properties were mainly owing to the three-dimensional structure and the rise in the Schottky barrier caused by the in situ production of tin particles.
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Affiliation(s)
- Ye Zhu
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Li Yang
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
- Correspondence: (L.Y.); (S.G.)
| | - Shenghui Guo
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
- Correspondence: (L.Y.); (S.G.)
| | - Ming Hou
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Yanjia Ma
- State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China
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7
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Ye P, Zhang H, Qu J, Wang J, Zhu X, Hu Q, Ma S. Preparation of recyclable fluorescent electrospinning films and their application in distinguishing and quantitatively analyzing acid gases. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Peng Ye
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Haitao Zhang
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jianbo Qu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jian‐Yong Wang
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Xiuzhong Zhu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Qingfei Hu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Shanghong Ma
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
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8
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Wang Y, Zhou Y. Recent Progress on Anti-Humidity Strategies of Chemiresistive Gas Sensors. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15248728. [PMID: 36556531 PMCID: PMC9784667 DOI: 10.3390/ma15248728] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 05/14/2023]
Abstract
In recent decades, chemiresistive gas sensors (CGS) have been widely studied due to their unique advantages of expedient miniaturization, simple fabrication, easy operation, and low cost. As one ubiquitous interference factor, humidity dramatically affects the performance of CGS, which has been neglected for a long time. With the rapid development of technologies based on gas sensors, including the internet of things (IoT), healthcare, environment monitoring, and food quality assessing, the humidity interference on gas sensors has been attracting increasing attention. Inspiringly, various anti-humidity strategies have been proposed to alleviate the humidity interference in this field; however, comprehensive summaries of these strategies are rarely reported. Therefore, this review aims to summarize the latest research advances on humidity-independent CGS. First, we discussed the humidity interference mechanism on gas sensors. Then, the anti-humidity strategies mainly including surface engineering, physical isolation, working parameters modulation, humidity compensation, and developing novel gas-sensing materials were successively introduced in detail. Finally, challenges and perspectives of improving the humidity tolerance of gas sensors were proposed for future research.
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9
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Yuan C, Ma J, Zou Y, Li G, Xu H, Sysoev VV, Cheng X, Deng Y. Modeling Interfacial Interaction between Gas Molecules and Semiconductor Metal Oxides: A New View Angle on Gas Sensing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203594. [PMID: 36116122 PMCID: PMC9685467 DOI: 10.1002/advs.202203594] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/22/2022] [Indexed: 06/15/2023]
Abstract
With the development of internet of things and artificial intelligence electronics, metal oxide semiconductor (MOS)-based sensing materials have attracted increasing attention from both fundamental research and practical applications. MOS materials possess intrinsic physicochemical properties, tunable compositions, and electronic structure, and are particularly suitable for integration and miniaturization in developing chemiresistive gas sensors. During sensing processes, the dynamic gas-solid interface interactions play crucial roles in improving sensors' performance, and most studies emphasize the gas-MOS chemical reactions. Herein, from a new view angle focusing more on physical gas-solid interactions during gas sensing, basic theory overview and latest progress for the dynamic process of gas molecules including adsorption, desorption, and diffusion, are systematically summarized and elucidated. The unique electronic sensing mechanisms are also discussed from various aspects including molecular interaction models, gas diffusion mechanism, and interfacial reaction behaviors, where structure-activity relationship and diffusion behavior are overviewed in detail. Especially, the surface adsorption-desorption dynamics are discussed and evaluated, and their potential effects on sensing performance are elucidated from the gas-solid interfacial regulation perspective. Finally, the prospect for further research directions in improving gas dynamic processes in MOS gas sensors is discussed, aiming to supplement the approaches for the development of high-performance MOS gas sensors.
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Affiliation(s)
- Chenyi Yuan
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
| | - Junhao Ma
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
| | - Yidong Zou
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
| | - Guisheng Li
- School of Materials and ChemistryUniversity of Shanghai for Science & TechnologyShanghai200093China
| | - Hualong Xu
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
| | - Victor V. Sysoev
- Department of PhysicsYuri Gagarin State Technical University of SaratovSaratov410054Russia
| | - Xiaowei Cheng
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
| | - Yonghui Deng
- Department of Chemistry, Department of Gastroenterology, Zhongshan Hospital of Fudan UniversityState Key Laboratory of Molecular Engineering of PolymersShanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iCHEMFudan UniversityShanghai200433China
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10
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Metal oxide nanofibers based chemiresistive H2S gas sensors. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Kang H, Joo H, Choi J, Kim YJ, Lee Y, Cho SY, Jung HT. Top-Down Approaches for 10 nm-Scale Nanochannel: Toward Exceptional H 2S Detection. ACS NANO 2022; 16:17210-17219. [PMID: 36223595 DOI: 10.1021/acsnano.2c07785] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Metal oxide semiconductors (MOS) have proven to be most powerful sensing materials to detect hydrogen sulfide (H2S), achieving part per billion (ppb) level sensitivity and selectivity. However, there has not been a way of extending this approach to the top-down H2S sensor fabrication process, completely limiting their commercial-level productions. In this study, we developed a top-down lithographic process of a 10 nm-scale SnO2 nanochannel for H2S sensor production. Due to high-resolution (15 nm thickness) and high aspect ratio (>20) structures, the nanochannel exhibited highly sensitive H2S detection performances (Ra/Rg = 116.62, τres = 31 s at 0.5 ppm) with selectivity (RH2S/Racetone = 23 against 5 ppm acetone). In addition, we demonstrated that the nanochannel could be efficiently sensitized with the p-n heterojunction without any postmodification or an additional process during one-step lithography. As an example, we demonstrated that the H2S sensor performance can be drastically enhanced with the NiO nanoheterojunction (Ra/Rg = 166.2, τres = 21 s at 0.5 ppm), showing the highest range of sensitivity demonstrated to date for state-of-the-art H2S sensors. These results in total constitute a high-throughput fabrication platform to commercialize the H2S sensor that can accelerate the development time and interface in real-life situations.
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Affiliation(s)
- Hohyung Kang
- Department of Chemical and Biomolecular Engineering (BK-21 Plus) and KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Heeeun Joo
- Department of Chemical and Biomolecular Engineering (BK-21 Plus) and KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Junghoon Choi
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yong-Jae Kim
- Department of Chemical and Biomolecular Engineering (BK-21 Plus) and KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Yullim Lee
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Suwon 16419, Republic of Korea
| | - Soo-Yeon Cho
- School of Chemical Engineering, Sungkyunkwan University, 2066 Seobu-ro, Suwon 16419, Republic of Korea
| | - Hee-Tae Jung
- Department of Chemical and Biomolecular Engineering (BK-21 Plus) and KAIST Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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12
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Liu L, Wang Y, Liu Y, Wang S, Li T, Feng S, Qin S, Zhang T. Heteronanostructural metal oxide-based gas microsensors. MICROSYSTEMS & NANOENGINEERING 2022; 8:85. [PMID: 35911378 PMCID: PMC9329395 DOI: 10.1038/s41378-022-00410-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/16/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
The development of high-performance, portable and miniaturized gas sensors has aroused increasing interest in the fields of environmental monitoring, security, medical diagnosis, and agriculture. Among different detection tools, metal oxide semiconductor (MOS)-based chemiresistive gas sensors are the most popular choice in commercial applications and have the advantages of high stability, low cost, and high sensitivity. One of the most important ways to further enhance the sensor performance is to construct MOS-based nanoscale heterojunctions (heteronanostructural MOSs) from MOS nanomaterials. However, the sensing mechanism of heteronanostructural MOS-based sensors is different from that of single MOS-based gas sensors in that it is fairly complex. The performance of the sensors is influenced by various parameters, including the physical and chemical properties of the sensing materials (e.g., grain size, density of defects, and oxygen vacancies of materials), working temperatures, and device structures. This review introduces several concepts in the design of high-performance gas sensors by analyzing the sensing mechanism of heteronanostructural MOS-based sensors. In addition, the influence of the geometric device structure determined by the interconnection between the sensing materials and the working electrodes is discussed. To systematically investigate the sensing behavior of the sensor, the general sensing mechanism of three typical types of geometric device structures based on different heteronanostructural materials are introduced and discussed in this review. This review will provide guidelines for readers studying the sensing mechanism of gas sensors and designing high-performance gas sensors in the future.
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Affiliation(s)
- Lin Liu
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
| | - Yingyi Wang
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
- Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, Jiangsu China
| | - Yinhang Liu
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
- Department of Nano Science and Nano Technology Institute, University of Science and Technology of China, Suzhou, Jiangsu China
| | - Shuqi Wang
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
| | - Tie Li
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
| | - Simin Feng
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
| | - Sujie Qin
- Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, Jiangsu China
| | - Ting Zhang
- i-Lab, Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
- Nano-X, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou, Jiangsu China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, Anhui PR China
- Gusu Laboratory of Materials, Suzhou, Jiangsu PR China
- Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, PR China
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13
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Song L, Ahn J, Kim DH, Shin H, Kim ID. Porous Pd-Sn Alloy Nanotube-Based Chemiresistor for Highly Stable and Sensitive H 2 Detection. ACS APPLIED MATERIALS & INTERFACES 2022; 14:28378-28388. [PMID: 35679507 DOI: 10.1021/acsami.2c05002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
While H2 is indispensable as a green fuel source, it is highly flammable and explosive. Because it is difficult to detect due to its lack of odor and color, a solution for proper monitoring of H2 leakage is essential to ensure safe handling. To this end, we have successfully fabricated hollow Pd-Sn alloy nanotubes (NTs) with a Brunauer-Emmett-Teller surface area of 223.0 m2/g through electrospinning and a subsequent etching method, which is the first demonstration of synthesizing Pd-based hollow alloy nanofibers with ultrafine grain sizes. We found that the alloying of Pd with Sn could effectively prevent degradation of the sensing performance upon the α-β phase transition during hydrogen detection. Besides, the highly porous structure with smaller nanograins offered more exposed active sites and higher gas accessibility to bulk materials. The resultant Pd-Sn NTs exhibited excellent sensitivity toward H2 (0.00005-3%). Notably, the limit of detection of 0.0001% is an outstanding achievement on H2 sensing among state-of-the-art H2 sensors. Moreover, when exposed to a high concentration of H2 (3%), Pd-Sn NTs showed excellent cycling stability with a standard deviation of 0.07% and a sensitivity of 9.27%. These obtained sensing results indicate that Pd-Sn NTs can be used as a highly sensitive and stable H2 gas sensor at room temperature (25 °C).
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Affiliation(s)
- Lu Song
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-virus & Air-quality Control, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-virus & Air-quality Control, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-virus & Air-quality Control, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Hamin Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-virus & Air-quality Control, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-virus & Air-quality Control, KI Nanocentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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14
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Song BY, Zhang XF, Huang J, Cheng XL, Deng ZP, Xu YM, Huo LH, Gao S. Porous Cr 2O 3 Architecture Assembled by Nano-Sized Cylinders/Ellipsoids for Enhanced Sensing to Trace H 2S Gas. ACS APPLIED MATERIALS & INTERFACES 2022; 14:22302-22312. [PMID: 35503932 DOI: 10.1021/acsami.2c03154] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
How to achieve high sensing of Cr2O3-based sensors for harmful inorganic gases is still a challenge. To this end, Cr2O3 nanomaterials assembled from different building blocks were simply prepared by chromium salt immersion and air calcination with waste scallion roots as the biomass template. The hierarchical architecture calcined at 600 °C is constructed from nanocylinders and nanoellipsoids (named as Cr2O3-600), and also possesses multistage pore distribution for target gas accessibility. Interestingly, the synergism of two shapes of nanocrystals enables the Cr2O3-based sensor to realize highly sensitive detection of trace H2S gas. At 170 °C, Cr2O3-600 exhibits a high response of 42.8 to 100 ppm H2S gas, which is 3.45 times larger than that of Cr2O3-500 assembled from nanocylinders. Meanwhile, this sensor has a low detection limit of 1.0 ppb (S = 1.4), good selectivity, stability, and moisture resistance. These results show that the combination of nanosized cylinders/ellipsoids together with exposed (104) facet can effectively improve the sensing performance of the p-type Cr2O3 material. In addition, the Cr2O3-600 sensor shows satisfactory results for actual monitoring of the corruption process of fresh chicken.
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Affiliation(s)
- Bao-Yu Song
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Xian-Fa Zhang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Jing Huang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
- Department of Inorganic and Physics Chemistry, College of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Xiao-Li Cheng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Zhao-Peng Deng
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Ying-Ming Xu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Li-Hua Huo
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Shan Gao
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
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15
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Singh S, Deb J, Singh JV, Sarkar U, Sharma S. Highly Selective Ethyl Mercaptan Sensing Using a MoSe 2/SnO 2 Composite at Room Temperature. ACS APPLIED MATERIALS & INTERFACES 2022; 14:23916-23927. [PMID: 35548976 DOI: 10.1021/acsami.1c25112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Volatile organic sulfur compounds (VOSCs) serve not only as biomarkers for dental diseases such as halitosis but also as a tracer for monitoring air quality. Room-temperature selective detection and superior sensitivity against VOSCs at a sub-ppm level has remained a challenging task. Here, we propose a heterostructure-based design using a MoSe2/SnO2 composite for achieving sensitive and selective detection of ethyl mercaptan at room temperature. The composite was synthesized via a facile two-step method. A composite-based device has shown detection down to 1 ppm of ethyl mercaptan over a wider range of relative humidity (40-90%). Notably, the composite has shown adsorption selectivity toward ethyl mercaptan compared to hydrogen sulfide and other reducing or oxidizing analytes. Moreover, a density functional theory (DFT) study has been performed to understand the adsorption selectivity, charge transfer, and modification in the electronic properties after molecule adsorption on the host surface. Simulations predicted the lowest negative adsorption energy for ethyl mercaptan, implying the chemisorption (-142.029 kJ mol-1) process of adsorption. The device thus-obtained has also shown a stable response even at an extreme relative humidity level of 90%. The obtained results and superior signal-to-noise ratio indicate that a MoSe2/SnO2-based sensor may be a promising candidate for highly selective and sensitive detection of ethyl mercaptan even below 1 ppm.
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Affiliation(s)
- Sukhwinder Singh
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Jyotirmoy Deb
- Department of Physics, Assam University, Silchar 788011, India
| | - Jatinder Vir Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Utpal Sarkar
- Department of Physics, Assam University, Silchar 788011, India
| | - Sandeep Sharma
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab 143005, India
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16
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Chemiresistive gas sensors based on electrospun semiconductor metal oxides: A review. Talanta 2022; 246:123527. [DOI: 10.1016/j.talanta.2022.123527] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 04/30/2022] [Accepted: 05/02/2022] [Indexed: 11/24/2022]
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17
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Zhang YH, Li YY, Yang XY, Gong FL, Chen JL, Xie KF, Zhang HL, Fang SM. Ultra-sensitive H 2S sensor based on sunflower-like In-doped ZnO with enriched oxygen vacancies. Phys Chem Chem Phys 2022; 24:28530-28539. [DOI: 10.1039/d2cp02539f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In–ZnO with oxygen vacancies exhibits a higher sensing response and a shorter recovery time for H2S compared to ZnO.
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Affiliation(s)
- Yong-Hui Zhang
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Ying-Ying Li
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Xuan-Yu Yang
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Fei-Long Gong
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Jun-Li Chen
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
| | - Ke-Feng Xie
- School of Chemical and Biological Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, P. R. China
| | - Hao-Li Zhang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC); Key Laboratory of Special Function Materials and Structure Design (MOE); College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Shao-Ming Fang
- College of Materials and Chemical Engineering, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Zhengzhou University of Light Industry, Zhengzhou 450002, P. R. China
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18
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Han HJ, Lee GR, Xie Y, Jang H, Hynek DJ, Cho EN, Kim YJ, Jung YS, Cha JJ. Unconventional grain growth suppression in oxygen-rich metal oxide nanoribbons. SCIENCE ADVANCES 2021; 7:eabh2012. [PMID: 34623908 PMCID: PMC8500517 DOI: 10.1126/sciadv.abh2012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Accepted: 08/17/2021] [Indexed: 05/30/2023]
Abstract
Nanograined metal oxides are requisite for diverse applications that use large surface area, such as gas sensors and catalysts. However, nanoscale grains are thermodynamically unstable and tend to coarsen at elevated temperatures. Here, we report effective grain growth suppression in metal oxide nanoribbons annealed at high temperature (900°C) by tuning the metal-to-oxygen ratio and confining the nanoribbons. Despite the high annealing temperatures, the average grain size was maintained at ~6 nm, which also retained their structural integrity. We observe that excess oxygen in amorphous tin oxide nanoribbons prevents merging of small grains during crystallization, leading to suppressed grain growth. As an exemplary application, we demonstrate a gas sensor using grain growth–suppressed tin oxide nanoribbons, which exhibited both high sensitivity and unusual long-term operation stability. Our findings provide a previously unknown pathway to simultaneously achieve high performance and excellent thermal stability in nanograined metal oxide nanostructures.
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Affiliation(s)
- Hyeuk Jin Han
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT 06516, USA
| | - Gyu Rac Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yujun Xie
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT 06516, USA
| | - Hanhwi Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - David J. Hynek
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT 06516, USA
| | - Eugene N. Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Ye Ji Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Judy J. Cha
- Department of Mechanical Engineering and Materials Science, Yale University, New Haven, CT 06511, USA
- Energy Sciences Institute, Yale West Campus, West Haven, CT 06516, USA
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19
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Shin H, Kim DH, Jung W, Jang JS, Kim YH, Lee Y, Chang K, Lee J, Park J, Namkoong K, Kim ID. Surface Activity-Tuned Metal Oxide Chemiresistor: Toward Direct and Quantitative Halitosis Diagnosis. ACS NANO 2021; 15:14207-14217. [PMID: 34170113 DOI: 10.1021/acsnano.1c01350] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Continuous monitoring of hydrogen sulfide (H2S) in human breath for early stage diagnosis of halitosis is of great significance for prevention of dental diseases. However, fabrication of a highly selective and sensitive H2S gas sensor material still remains a challenge, and direct analysis of real breath samples has not been properly attempted, to the best of our knowledge. To address the issue, herein, we introduce facile cofunctionalization of WO3 nanofibers with alkaline metal (Na) and noble metal (Pt) catalysts via the simple addition of sodium chloride (NaCl) and Pt nanoparticles (NPs), followed by electrospinning process. The Na-doping and Pt NPs decoration in WO3 grains induces the partial evolution of the Na2W4O13 phase, causing the buildup of Pt/Na2W4O13/WO3 multi-interface heterojunctions that selectively interacts with sulfur-containing species. As a result, we achieved the highest-ranked sensing performances, that is, response (Rair/Rgas) = 780 @ 1 ppm and selectivity (RH2S/REtOH) = 277 against 1 ppm ethanol, among the chemiresistor-based H2S sensors, owing to the synergistic chemical and electronic sensitization effects of the Pt NP/Na compound cocatalysts. The as-prepared sensing layer was proven to be practically effective for direct, and quantitative halitosis analysis based on the correlation (accuracy = 86.3%) between the H2S concentration measured using the direct breath signals obtained by our test device (80 cases) and gas chromatography. This study offers possibilities for direct, highly reliable and rapid detection of H2S in real human breath without the need of any collection or filtering equipment.
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Affiliation(s)
- Hamin Shin
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Wonjong Jung
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Ji-Soo Jang
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Chemical and Environmental Engineering, Yale University, New Haven, Connecticut 06520-8286, United States
| | - Yoon Hwa Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Yeolho Lee
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Kiyoung Chang
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Joonhyung Lee
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Jongae Park
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Kak Namkoong
- Healthcare Sensor Lab., Device Research Center, Samsung Advanced Institute of Technology, Samsung Electronics Co., Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Membrane Innovation Center for Anti-Virus & Air-Quality Control, KI Nanocentury, KAIST, 291, Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
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20
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Wang T, Wang Y, Sun Q, Zheng S, Liu L, Li J, Hao J. Boosted interfacial charge transfer in SnO2/SnSe2 heterostructures: toward ultrasensitive room-temperature H2S detection. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01326a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Novel Sn atom cosharing SnO2/SnSe2 heterostructures with a high-quality interface were synthesized via in situ thermal oxidation of SnSe. The boosted interfacial charge transfer endows the material with excellent H2S sensing performance.
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Affiliation(s)
- Tingting Wang
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - You Wang
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
- School of Materials Science and Engineering
| | - Quan Sun
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Shengliang Zheng
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Lizhao Liu
- Key Laboratory of Materials Modification by Laser
- Ion and Electron Beams (Dalian University of Technology)
- Ministry of Education
- Dalian 116024
- China
| | - Jialu Li
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Juanyuan Hao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
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21
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Vajhadin F, Mazloum-Ardakani M, Amini A. Metal oxide-based gas sensors for detection of exhaled breath markers. MEDICAL DEVICES & SENSORS 2020; 4:e10161. [PMID: 33615149 PMCID: PMC7883254 DOI: 10.1002/mds3.10161] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Exhaled breath test is a typical disease monitoring method for replacing blood and urine samples that may create discomfort for patients. To monitor exhaled breath markers, gas biomedical sensors have undergone rapid progress for non‐invasive and point‐of‐care diagnostic devices. Among gas sensors, metal oxide‐based biomedical gas sensors have received remarkable attention owing to their unique properties, such as high sensitivity, simple fabrication, miniaturization, portability and real‐time monitoring. Herein, we reviewed the recent advances in chemoresistive metal oxide‐based gas sensors with ZnO, SnO2 and In2O3 as sensing materials for monitoring a range of exhaled breath markers (i.e., NO, H2, H2S, acetone, isoprene and formaldehyde). We focused on the strategies that improve the sensitivity and selectivity of metal oxide‐based gas sensors. The challenges to fabricate a functional gas sensor with high sensing performance along with suggestions are outlined.
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Affiliation(s)
- Fereshteh Vajhadin
- Department of Chemistry Faculty of Science Yazd University Yazd 89195-741 Iran
| | | | - Abass Amini
- Department of Mechanical Engineering Australian College of Kuwait Safat 13015 Kuwait
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22
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Ziegler JM, Andoni I, Choi EJ, Fang L, Flores-Zuleta H, Humphrey NJ, Kim DH, Shin J, Youn H, Penner RM. Sensors Based Upon Nanowires, Nanotubes, and Nanoribbons: 2016-2020. Anal Chem 2020; 93:124-166. [PMID: 33242951 DOI: 10.1021/acs.analchem.0c04476] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Joshua M Ziegler
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Ilektra Andoni
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Eric J Choi
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Lu Fang
- Department of Automation, Hangzhou Dianzi University, 1158 Second Street, Xiasha, Hangzhou 310018, China
| | - Heriberto Flores-Zuleta
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Nicholas J Humphrey
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
| | - Dong-Hwan Kim
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Jihoon Shin
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Hyunho Youn
- School of Chemical Engineering, Sungkyunkwan University, Seobu-ro 2066, Jangan-gu Suwon, Gyeonggi-do 16419, South Korea
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, Irvine, California 92697, United States
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23
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Du F, Guo Z, Cheng Z, Kremer M, Shuang S, Liu Y, Dong C. Facile synthesis of ultrahigh fluorescence N,S-self-doped carbon nanodots and their multiple applications for H 2S sensing, bioimaging in live cells and zebrafish, and anti-counterfeiting. NANOSCALE 2020; 12:20482-20490. [PMID: 33026004 DOI: 10.1039/d0nr04649c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Green-emissive N,S-self-doped carbon nanodots (N,S-self-CNDs) with an ultrahigh fluorescence (FL) quantum yield (QY) of 60% were synthesized using methyl blue as the only source by a facile hydrothermal approach. The -NH- and -SOx- groups of methyl blue were simultaneously used as nitrogen and sulfur co-dopants to dope into CNDs. The prepared N,S-self-CNDs have an extremely large Stokes shift (∼130 nm) and excitation-independent fluorescence, and are demonstrated to have multiple applications for H2S sensing, bioimaging and anti-counterfeiting. Taking advantage of their excellent optical properties, N,S-self-CNDs could act as a label-free nanoprobe for the detection of H2S. The FL of N,S-self-CNDs could be significantly quenched by H2S because of dynamic quenching, along with excellent selectivity toward H2S from 0.5-15 μM with a detection limit of 46.8 nM. They were successfully employed for the analysis of H2S content in actual samples. Additionally, the nanoprobe was extended to bioimaging in both living PC12 cells and zebrafish, and monitoring H2S in live cells. Furthermore, N,S-self-CNDs have been used to prepare highly fluorescent polymer films by incorporating N,S-self-CNDs in polyvinyl alcohol (PVA). The as-prepared N,S-self-CNDs/PVA films show a prominent dual-mode FL property, implying that they are potential nanomaterials in the anti-counterfeiting field.
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Affiliation(s)
- Fangfang Du
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Zhonghui Guo
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Zhe Cheng
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Marius Kremer
- Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Shaomin Shuang
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Yang Liu
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Chuan Dong
- Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
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24
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Wang YY, Na HB, Zhang M, Deng ZP, Huo LH, Gao S. Coca-Cola solvothermal synthesis of mesoporous SnO2 blooming flower-like architecture assembled from single crystal nanorods and its gas sensing properties. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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25
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Kim B, Das G, Park BJ, Lee DH, Yoon HH. A free-standing NiCr-CNT@C anode mat by electrospinning for a high-performance urea/H2O2 fuel cell. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136657] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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26
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Liu D, Li H, Song L, Zhu X, Qin Y, Zu H, He J, Yang Z, Wang F. Modulating electrical and photoelectrical properties of one-step electrospun one-dimensional SnO 2 arrays. NANOTECHNOLOGY 2020; 31:335202. [PMID: 32344383 DOI: 10.1088/1361-6528/ab8dee] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
One-dimensional nanostructured SnO2 has attracted intense research interest due to its advantageous properties, including a large surface-to-volume ratio, high optical transparency and typical n-type properties. However, how to fabricate high-performance and multifunctional electronic devices based on 1D nanostructured SnO2 via low-cost and efficient preparation techniques is still a huge challenge. In this work, a low-cost, one-step electrospun technology was employed to synthesize the SnO2 nanofiber (NF) and nanotube (NT) arrays. The electrical and photoelectrical parameters of SnO2 NTs-based devices were effectively controlled through simple changes to the amount of Sn in the precursor solution. The optimal 0.2 SnO2 NTs-based field effect transistors (FETs) with 0.2 g SnCl2*4H2O per 5 ml in the precursor solution exhibit a high saturation current (∼9 × 10-5 A) and a large on/off ratio exceeding 2.4 × 106. Additionally, 0.2 SnO2 NTs-based FET also exhibit a narrowband deep-UV photodetectivity (240-320 nm), including an ultra-high photocurrent of 307 μA, a high photosensitivity of 2003, responsibility of 214 A W-1 and detectivity of 2.19 × 1013 Jones. Furthermore, the SnO2 NTs-based transparent photodetectors were as well be integrated with fluorine-doped tin oxide glass and demonstrated a high optical transparency and photosensitivity (∼199). All these results elucidate the significant advantages of these electrospun SnO2 NTs for next-generation multifunctional electronics and transparent photonics.
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Affiliation(s)
- Di Liu
- College of Physics and State Key Laboratory of Bio Fibers and Eco Textiles, Qingdao University, Qingdao 266071, People's Republic of China
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27
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Yang T, Zhan L, Huang CZ. Recent insights into functionalized electrospun nanofibrous films for chemo-/bio-sensors. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115813] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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28
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Li W, He L, Bai X, Liu L, Ikram M, Lv H, Ullah M, Khan M, Kan K, Shi K. Enhanced NO2 sensing performance of S-doped biomorphic SnO2 with increased active sites and charge transfer at room temperature. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00119h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
S-Doped biomorphic SnO2 with active S-terminations and S–Sn–O chemical bonds has significantly improved gas sensing performance to NO2 at room temperature.
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29
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Zhang W, Chai H, Diao G. Highly porous cyclodextrin functionalized nanofibrous membrane by acid etching. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123907] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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30
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Liu L, Wang Y, Dai Y, Li G, Wang S, Li T, Zhang T, Qin S. In Situ Growth of NiO@SnO 2 Hierarchical Nanostructures for High Performance H 2S Sensing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:44829-44836. [PMID: 31722530 DOI: 10.1021/acsami.9b13001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Heterostructured metal oxides with large specific surface area are crucial for constructing gas sensors with high performance. However, using slurry-coating and screen-printing methods to fabricate gas sensors cannot result in high uniformity and reproducibility of the sensors. Here, NiO nanowalls decorated by SnO2 nanoneedles (NiO@SnO2) were in situ grown on ceramic microchips via a chemical bath deposition method to detect H2S instead of print-coating and slurry-coating methods. The morphologies and compositions of the NiO@SnO2 hierarchical nanostructures (HNSs) were well tuned by varying the growth time of the NiO@SnO2 HNSs to optimize the sensing performance. The response of the NiO@SnO2 HNSs (2 h) to 1 ppm of H2S was over 23-fold higher than that of the pure NiO nanowalls and 17-fold higher than that of the pure SnO2 nanosheets. This dramatic enhancement is attributed to the large surface area of the NiO@SnO2 HNSs and the p-n heterojunction at the heterointerface of SnO2 and NiO. The variation in the depletion layers (WSnO2 and WNiO) at the heterointerface of SnO2 and NiO greatly depends on the properties of the target gases (e.g., electron-withdrawing property (NO2) or electron-donating property (H2S)).
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Affiliation(s)
- Lin Liu
- Xi'an Jiaotong-Liverpool University , Department of Health and Environmental Sciences , 111 Renai Road , Suzhou , Jiangsu 215123 , P. R. China
- Department of Environmental Sciences , University of Liverpool , Brownlow Hill , Liverpool L69 7ZX , United Kingdom
| | - Yingyi Wang
- Xi'an Jiaotong-Liverpool University , Department of Health and Environmental Sciences , 111 Renai Road , Suzhou , Jiangsu 215123 , P. R. China
| | - Yanbing Dai
- i-Lab, and Key Laboratory of Multifunctional Nanomaterials and Smart Systems , Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS) , 398 Ruoshui Road , Suzhou , Jiangsu 215123 , P. R. China
| | - Guanghui Li
- Department of Chemical and Environmental Engineering , University of California , Riverside California 92521 , United States
| | - Shuqi Wang
- i-Lab, and Key Laboratory of Multifunctional Nanomaterials and Smart Systems , Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS) , 398 Ruoshui Road , Suzhou , Jiangsu 215123 , P. R. China
| | - Tie Li
- i-Lab, and Key Laboratory of Multifunctional Nanomaterials and Smart Systems , Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS) , 398 Ruoshui Road , Suzhou , Jiangsu 215123 , P. R. China
| | - Ting Zhang
- Xi'an Jiaotong-Liverpool University , Department of Health and Environmental Sciences , 111 Renai Road , Suzhou , Jiangsu 215123 , P. R. China
| | - Sujie Qin
- Xi'an Jiaotong-Liverpool University , Department of Health and Environmental Sciences , 111 Renai Road , Suzhou , Jiangsu 215123 , P. R. China
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31
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Wu Z, Li Z, Li H, Sun M, Han S, Cai C, Shen W, Fu Y. Ultrafast Response/Recovery and High Selectivity of the H 2S Gas Sensor Based on α-Fe 2O 3 Nano-Ellipsoids from One-Step Hydrothermal Synthesis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12761-12769. [PMID: 30860351 DOI: 10.1021/acsami.8b22517] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Ultrafast response/recovery and high selectivity of gas sensors are critical for real-time and online monitoring of hazardous gases. In this work, α-Fe2O3 nano-ellipsoids were synthesized using a facile one-step hydrothermal method and investigated as highly sensitive H2S-sensing materials. The nano-ellipsoids have an average long-axis diameter of 275 nm and an average short-axis diameter of 125 nm. H2S gas sensors fabricated using the α-Fe2O3 nano-ellipsoids showed excellent H2S-sensing performance at an optimum working temperature of 260 °C. The response and recovery times were 0.8 s/2.2 s for H2S gas with a concentration of 50 ppm, which are much faster than those of H2S gas sensors reported in the literature. The α-Fe2O3 nano-ellipsoid-based sensors also showed high selectivity to H2S compared to other commonly investigated gases including NH3, CO, NO2, H2, CH2Cl2, and ethanol. In addition, the sensors exhibited high-response values to different concentrations of H2S with a detection limit as low as 100 ppb, as well as excellent repeatability and long-term stability.
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Affiliation(s)
| | | | | | | | | | | | - Wenzhong Shen
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry , Chinese Academy of Science , Taiyuan 030001 , China
| | - YongQing Fu
- Faculty of Engineering and Environment , Northumbria University , Newcastle Upon Tyne NE1 8ST , U.K
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32
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Teng L, Liu Y, Ikram M, Liu Z, Ullah M, Ma L, Zhang X, Wu H, Li L, Shi K. One-step synthesis of palladium oxide-functionalized tin dioxide nanotubes: Characterization and high nitrogen dioxide gas sensing performance at room temperature. J Colloid Interface Sci 2019; 537:79-90. [DOI: 10.1016/j.jcis.2018.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/25/2018] [Accepted: 11/01/2018] [Indexed: 10/28/2022]
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33
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Yang M, Cheng X, Zhang X, Liu W, Huang C, Xu Y, Gao S, Zhao H, Huo L. Preparation of highly crystalline NiO meshed nanowalls via ammonia volatilization liquid deposition for H2S detection. J Colloid Interface Sci 2019; 540:39-50. [DOI: 10.1016/j.jcis.2018.12.106] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/16/2018] [Accepted: 12/29/2018] [Indexed: 11/29/2022]
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34
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Zhao Y, Zou X, Chen H, Chu X, Li GD. Tailoring energy level and surface basicity of metal oxide semiconductors by rare-earth incorporation for high-performance formaldehyde detection. Inorg Chem Front 2019. [DOI: 10.1039/c9qi00381a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The elevated Fermi level and increased surface basicity of 5Y-In2O3 led to the improvement of response and selectivity towards formaldehyde.
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Affiliation(s)
- Yanfang Zhao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Xiaoxin Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Hui Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
| | - Xuefeng Chu
- Key Laboratory of Architectural Cold Climate Energy Management
- Ministry of Education
- Jilin Jianzhu University
- Changchun 130118
- P. R. China
| | - Guo-Dong Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- P. R. China
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35
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Cho HJ, Chen VT, Qiao S, Koo WT, Penner RM, Kim ID. Pt-Functionalized PdO Nanowires for Room Temperature Hydrogen Gas Sensors. ACS Sens 2018; 3:2152-2158. [PMID: 30264562 DOI: 10.1021/acssensors.8b00714] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
In this work, we prepared a well-aligned palladium oxide nanowire (PdO NW) array using the lithographically patterned Pd nanowire electrodeposition (LPNE) method followed by subsequent calcination at 500 °C. Sensitization with platinum (Pt) nanoparticles (NPs), which were functionalized on PdO NWs through a simple reduction process, significantly enhanced the detection capability of the Pt-loaded PdO NWs (Pt-PdO NWs) sensors toward hydrogen gas (H2) at room temperature. The well-distributed Pt NPs, which are known chemical sensitizers, activated the dissociation of H2 and oxygen molecules through the spillover effect with subsequent diffusion of these products to the PdO surface, thereby transforming the entire surface of the PdO NWs into reaction sites for H2. As a result, at a high concentration of H2 (0.2%), the Pt-PdO NWs showed an enhanced sensitivity of 62% (defined as Δ R/ Rair × 100%) compared to that (6.1%) of pristine PdO NWs. The Pt-PdO NWs exhibited a response time of 166 s, which was 2.68-fold faster than that of pristine PdO NWs (445 s). In addition, the Pt-PdO NWs responded to a very low concentration of H2 (10 ppm) with a sensitivity of 14%, unlike the pristine PdO NWs, which did not exhibit any response at that concentration. These outstanding results are mainly attributed to a homogeneous decoration of Pt NPs on the surface of well-aligned PdO NWs. In this work, we demonstrated the potential suitability of Pt-PdO NWs as a highly sensitive H2 sensing layer at room temperature.
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Affiliation(s)
- Hee-Jin Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | | | | | - Won-Tae Koo
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | | | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
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36
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Simonenko EP, Simonenko NP, Mokrushin AS, Vasiliev AA, Vlasov IS, Volkov IA, Maeder T, Sevastyanov VG, Kuznetsov NT. Tin Acetylacetonate as a Precursor for Producing Gas-Sensing SnO2 Thin Films. RUSS J INORG CHEM+ 2018. [DOI: 10.1134/s0036023618070197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Jeong YJ, Koo WT, Jang JS, Kim DH, Cho HJ, Kim ID. Chitosan-templated Pt nanocatalyst loaded mesoporous SnO 2 nanofibers: a superior chemiresistor toward acetone molecules. NANOSCALE 2018; 10:13713-13721. [PMID: 29989640 DOI: 10.1039/c8nr03242d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this work, we introduce a chitosan-Pt complex (CS-Pt) as an effective template for catalytic Pt sensitization and creation of abundant mesopores in SnO2 nanofibers (NFs). The Pt particles encapsulated by the CS exhibit ultrasmall size (∼2.6 nm) and high dispersion characteristics due to repulsion between CS molecules. By combining CS-Pt with electrospinning, mesoporous SnO2 NFs uniformly functionalized with the Pt catalyst (CS-Pt@SnO2 NFs) are synthesized. Particularly, numerous mesopores with diameters of ∼20 nm form through the decomposition of CS, while a small SnO2 grain size (14.32 nm) is achieved by the pinning effect of CS. It is observed that CS-Pt@SnO2 NFs exhibit outstanding response (Rair/Rgas = 141.92 at 5 ppm), excellent selectivity, stability, and fast response (12 s)/recovery (44 s) speed toward 1 ppm of acetone at 350 °C and high humidity (90% RH). In addition, by applying an exponential fitting tool to experimental response values toward 0.1-5 ppm of acetone, it is estimated that CS-Pt@SnO2 NFs can detect 5 ppb of acetone with a notable response (Rair/Rgas = 2.9). Furthermore, the sensor array based on CS-Pt@SnO2 NFs, CS-driven SnO2 NFs, polyol-Pt loaded SnO2 NFs, and dense SnO2 NFs obviously classifies simulated diabetic breath and healthy human breath by using a pattern recognition tool. These results clearly demonstrate that mesoporous SnO2 NFs, particularly functionalized with CS-Pt templated nanocatalysts, open up a new class of sensing layers offering high sensitivity and selectivity.
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Affiliation(s)
- Yong Jin Jeong
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
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38
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Bulemo PM, Cho HJ, Kim DH, Kim ID. Facile Synthesis of Pt-Functionalized Meso/Macroporous SnO 2 Hollow Spheres through in Situ Templating with SiO 2 for H 2S Sensors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:18183-18191. [PMID: 29608265 DOI: 10.1021/acsami.8b00901] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Although single-nozzle electrospraying seems a versatile technique in the synthesis of spherical semiconducting metal oxide structures, the synthesized structures find limited use in gas-sensing applications because of their thick and dense morphology, which minimizes the accessibility of their inner surfaces. Herein, unprecedented spherical SiO2@SnO2 core-shell structures are synthesized upon calcination of single-nozzle as-electrosprayed spheres (SPs) containing tin (Sn) and silicon (Si) precursors. Subsequent etching of SiO2 in NaOH (pH 12) affords meso/macroporous SnO2 hollow spheres (HSPs) with short diffusion length (31.4 ± 3.1 nm), small crystallites (15.5 nm), and large Brunauer-Emmett-Teller surface area (124.8 m2 g-1). Apart from surface meso/macropores, diffusion of gases into porous SnO2 sensing layers is realized through inner interconnection of voids of the SnO2 HSPs into a three-dimensional network. Functionalization of the postetched SnO2 HSPs with platinum (Pt) nanoparticles at 0.08 wt % yields gas-sensing materials with outstanding response ( Ra/ Rg = 1.6, 10.8, and 105.1-0.1, 1, and 5 ppm of H2S, respectively) and selectivity toward H2S against interfering gas molecules at 250 °C. The SiO2 phase in the postcalcined SiO2@SnO2 SPs acts as a sacrificial template for pore creation and crystal growth inhibition, whereas the small amount of SiO2 residues in HSPs enhances the selectivity.
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Affiliation(s)
- Peresi Majura Bulemo
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Hee-Jin Cho
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Dong-Ha Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering , Korea Advanced Institute of Science and Technology (KAIST) , 291 Daehak-ro , Yuseong-gu, Daejeon 34141 , Republic of Korea
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39
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Li X, Peng K, Dou Y, Chen J, Zhang Y, An G. Facile Synthesis of Wormhole-Like Mesoporous Tin Oxide via Evaporation-Induced Self-Assembly and the Enhanced Gas-Sensing Properties. NANOSCALE RESEARCH LETTERS 2018; 13:14. [PMID: 29327243 PMCID: PMC5764904 DOI: 10.1186/s11671-018-2434-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 01/02/2018] [Indexed: 05/20/2023]
Abstract
Wormhole-like mesoporous tin oxide was synthesized via a facile evaporation-induced self-assembly (EISA) method, and the gas-sensing properties were evaluated for different target gases. The effect of calcination temperature on gas-sensing properties of mesoporous tin oxide was investigated. The results demonstrate that the mesoporous tin oxide sensor calcined at 400 °C exhibits remarkable selectivity to ethanol vapors comparison with other target gases and has a good performance in the operating temperature and response/recovery time. This might be attributed to their high specific surface area and porous structure, which can provide more active sites and generate more chemisorbed oxygen spices to promote the diffusion and adsorption of gas molecules on the surface of the gas-sensing material. A possible formation mechanism of the mesoporous tin oxide and the enhanced gas-sensing mechanism are proposed. The mesoporous tin oxide shows prospective detecting application in the gas sensor fields.
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Affiliation(s)
- Xiaoyu Li
- School of Materials Science and Engineering, Chang’an University, Xi’an, 710064 China
| | - Kang Peng
- State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049 China
| | - Yewei Dou
- School of Materials Science and Engineering, Chang’an University, Xi’an, 710064 China
| | - Jiasheng Chen
- School of Materials Science and Engineering, Chang’an University, Xi’an, 710064 China
| | - Yue Zhang
- School of Materials Science and Engineering, Chang’an University, Xi’an, 710064 China
| | - Gai An
- School of Materials Science and Engineering, Chang’an University, Xi’an, 710064 China
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40
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Yang L, Wang Z, Zhou X, Wu X, Han N, Chen Y. Synthesis of Pd-loaded mesoporous SnO2 hollow spheres for highly sensitive and stable methane gas sensors. RSC Adv 2018; 8:24268-24275. [PMID: 35539194 PMCID: PMC9082036 DOI: 10.1039/c8ra03242d] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 06/25/2018] [Indexed: 11/21/2022] Open
Abstract
This work reports a simple, rapid, effective and reliable CH4 sensor based on Pd-loaded SnO2 hollow spheres with high surface area and porosity, which is of great importance to gas sensing performance.
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Affiliation(s)
- Liping Yang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
| | - Zhou Wang
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
| | - Xinyuan Zhou
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
| | - Xiaofeng Wu
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
| | - Ning Han
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
| | - Yunfa Chen
- State Key Laboratory of Multiphase Complex Systems
- Institute of Process Engineering
- Chinese Academy of Sciences
- 100190 Beijing
- P. R. China
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