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Jiang L, Cui Q, Zhang R, Zhang W. Highly Sensing and Selective Performance Based on Bi-Doped Porous ZnSnO 3 Nanospheres for Detection of n-Butanol. SENSORS (BASEL, SWITZERLAND) 2022; 22:6571. [PMID: 36081028 PMCID: PMC9460466 DOI: 10.3390/s22176571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/19/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
In this study, pure zinc stannate (ZnSnO3) and bismuth (Bi)-doped ZnSnO3 composites (Bi-ZnSnO3) were synthesized via the in situ precipitation method, and their microstructures, morphologies, chemical components, sizes, and specific surface areas were characterized, followed by testing their gas sensing properties. The results revealed that Bi-ZnSnO3 showed superior gas sensing properties to n-butanol gas, with an optimal operating temperature of 300 °C, which was 50 °C lower than that of pure ZnSnO3. At this temperature, moreover, the sensitivity of Bi-ZnSnO3 to n-butanol gas at the concentration of 100 ppm reached as high as 1450.65, which was 35.57 times that (41.01) of ammonia gas, 2.93 times that (495.09) of acetone gas, 6.02 times that (241.05) of methanol gas, 2.54 times that (571.48) of formaldehyde gas, and 2.98 times that (486.58) of ethanol gas. Bi-ZnSnO3 had a highly repeatable performance. The total proportion of oxygen vacancies and chemi-adsorbed oxygen in Bi-ZnSnO3 (4 wt%) was 27.72% to 32.68% higher than that of pure ZnSnO3. Therefore, Bi-ZnSnO3 has considerable potential in detecting n-butanol gas by virtue of its excellent gas-sensing properties.
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Affiliation(s)
- Lili Jiang
- Correspondence: ; Tel.: +86-93-1297-6378
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Krishnan VG, Elango P, Ravikumar K, Marnadu R, Aldossary OM, Ubaidullah M. Noticeable improvement in the toxic gas-sensing activity of the Zn-doped TiO 2 films for sensing devices. NEW J CHEM 2021. [DOI: 10.1039/d1nj01079d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sensing element view, sening mechanism, stability, response and recovery time of the Zn-doped TiO2 films.
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Affiliation(s)
- V. Gopala Krishnan
- Department of Physics
- Dr N.G.P. Arts and Science College
- Coimbatore - 641048
- India
| | - P. Elango
- Department of Physics
- Government Arts College
- Coimbatore - 641018
- India
| | - K. Ravikumar
- Department of Physics
- Vivekanandha College of Arts and Science for Women
- Tiruchengode-673205
- India
| | - R. Marnadu
- Department of Physics
- Sri Ramakrishna Mission Vidyalaya College of Arts and Science
- Coimbatore-641 020
- India
| | - Omar M. Aldossary
- Department of Physics and Astronomy, College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - Mohd Ubaidullah
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
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Jia X, Wang N, Tian J, Zhang Y, Lu D, Tan J, Qiao R, Chen L, Zhang W, Zhong J. A highly sensitive gas sensor employing biomorphic SnO2 with multi-level tubes/pores structure: bio-templated from waste of flax. RSC Adv 2019; 9:19993-20001. [PMID: 35514699 PMCID: PMC9065453 DOI: 10.1039/c9ra02064k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/09/2019] [Indexed: 12/27/2022] Open
Abstract
Metal oxide gas sensors with porous structures are widely used in numerous applications ranging from health monitoring and medical detection to safety; in this study, we report a highly sensitive SnO2 gas sensor with a multi-level tube/pore structure prepared via biomimetic technology using flax waste as a bio-template and a simple wet chemical process combined with subsequent annealing. Indeed, MLTPS not only maintained and improved the excellence of porous structure gas sensing materials with abundant active sites and large surface-to-volume ratios, but also overcame the deficiency of the lack of gas diffusion channels in porous gas sensing materials. Thus, this novel multi-level tube/pore SnO2 gas sensor exhibited significantly enhanced sensing performance, e.g. an ultra-low response concentration (250 ppb), a high response (87.9), a fast response (9.2 s), a low operating temperature (130 °C) and good stability, for formaldehyde. On the basis of these results, via the reuse of agricultural waste, this study provides a new concept for the low-cost synthesis of environmentally friendly and effective multi-level tube/pore gas sensor materials. Metal oxides gas sensors are widely used in numerous applications from health, medical detection to safety. By bio-templating from waste of flax, this paper reports a highly sensitive SnO2 gas sensor with multi-level tubes/pores structure.![]()
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Cortés-Arriagada D, Villegas-Escobar N, Miranda-Rojas S, Toro-Labbé A. Adsorption/desorption process of formaldehyde onto iron doped graphene: a theoretical exploration from density functional theory calculations. Phys Chem Chem Phys 2017; 19:4179-4189. [PMID: 27990518 DOI: 10.1039/c6cp07710b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The interaction of formaldehyde (H2CO) onto Fe-doped graphene (FeG) was studied in detail from density functional theory calculations and electronic structure analyses. Our aim was to obtain insights into the adsorption, desorption and sensing properties of FeG towards H2CO, a hazardous organic compound. The adsorption of H2CO was shown to be energetically stable onto FeG, with adsorption energies of up to 1.45 eV and favored in different conformations. This interaction was determined to be mostly electrostatic in nature, where the oxygen plays an important role in this contribution; besides, our quantum molecular dynamics results showed the high stability of the FeG-H2CO interaction at ambient temperature (300 K). All the interactions were determined to be accompanied by an increase in the HOMO-LUMO energy gap with respect to the isolated adsorbent, indicating that FeG is highly sensitive to H2CO with respect to pristine graphene. Finally, it was found that external electric fields of 0.04-0.05 a.u. were able to induce the pollutant desorption from the adsorbent, allowing the adsorbent reactivation for repetitive applications. These results indicate that FeG could be a promising candidate for adsorption/sensing platforms of H2CO.
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Affiliation(s)
- Diego Cortés-Arriagada
- Nucleus Millennium Chemical Processes and Catalysis, Laboratorio de Química Teórica Computacional (QTC), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
| | - Nery Villegas-Escobar
- Nucleus Millennium Chemical Processes and Catalysis, Laboratorio de Química Teórica Computacional (QTC), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
| | - Sebastián Miranda-Rojas
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andrés Bello, Avenida República 275, Santiago, Chile
| | - Alejandro Toro-Labbé
- Nucleus Millennium Chemical Processes and Catalysis, Laboratorio de Química Teórica Computacional (QTC), Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, Macul, Santiago, Chile.
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Liu X, Chen N, Han B, Xiao X, Chen G, Djerdj I, Wang Y. Nanoparticle cluster gas sensor: Pt activated SnO2 nanoparticles for NH3 detection with ultrahigh sensitivity. NANOSCALE 2015; 7:14872-80. [PMID: 26289622 DOI: 10.1039/c5nr03585f] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Pt activated SnO2 nanoparticle clusters were synthesized by a simple solvothermal method. The structure, morphology, chemical state and specific surface area were analyzed by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and N2-sorption studies, respectively. The SnO2 nanoparticle cluster matrix consists of tens of thousands of SnO2 nanoparticles with an ultra-small grain size estimated to be 3.0 nm. And there are abundant random-packed wormhole-like pores, caused by the inter-connection of the SnO2 nanoparticles, throughout each cluster. The platinum element is present in two forms including metal (Pt) and tetravalent metal oxide (PtO2) in the Pt activated SnO2 nanoparticle clusters. The as-synthesized pure and Pt activated SnO2 nanoparticle clusters were used to fabricate gas sensor devices. It was found that the gas response toward 500 ppm of ammonia was improved from 6.48 to 203.44 through the activation by Pt. And the results indicate that the sensor based on Pt activated SnO2 not only has ultrahigh sensitivity but also possesses good response-recovery properties, linear dependence, repeatability, selectivity and long-term stability, demonstrating the potential to use Pt activated SnO2 nanoparticle clusters as ammonia gas sensors. At the same time, the formation mechanisms of the unique nanoparticle clusters and highly enhanced sensitivity are also discussed.
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Affiliation(s)
- Xu Liu
- School of Physical Science and Technology, Yunnan University, 650091 Kunming, People's Republic of China
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Xiao X, Xing X, Han B, Deng D, Cai X, Wang Y. Enhanced formaldehyde sensing properties of SnO2 nanorods coupled with Zn2SnO4. RSC Adv 2015. [DOI: 10.1039/c5ra01887k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The formaldehyde sensing properties of a SnO2 nanorod gas sensor are improved by compositing with Zn2SnO4.
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Affiliation(s)
- Xuechun Xiao
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
| | - Xinxin Xing
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
| | - Bingqian Han
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
| | - Dongyang Deng
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
| | - Xiaoyan Cai
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
| | - Yude Wang
- School of Physical Science and Technology
- Yunnan University
- 650091 Kunming
- People's Republic of China
- Yunnan Province Key Lab of Mico-Nano Materials and Technology
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Liu X, Chen N, Xing X, Li Y, Xiao X, Wang Y, Djerdj I. A high-performance n-butanol gas sensor based on ZnO nanoparticles synthesized by a low-temperature solvothermal route. RSC Adv 2015. [DOI: 10.1039/c5ra05148g] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Solvothermally synthesized ZnO nanoparticles applied as a sensing layer for an n-butanol gas sensor show a very good gas response performance.
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Affiliation(s)
- Xu Liu
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
| | - Nan Chen
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
| | - Xinxin Xing
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
| | - Yuxiu Li
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
| | - Xuechun Xiao
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
- Yunnan Province Key Lab of Micro-Nano Materials and Technology
| | - Yude Wang
- School of Physics Science and Technology
- Yunnan University
- 650091 Kunming
- People’s Republic of China
- Yunnan Province Key Lab of Micro-Nano Materials and Technology
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Chen G, Han B, Deng S, Wang Y, Wang Y. Lanthanum Dioxide Carbonate La2O2CO3 Nanorods as a Sensing Material for Chemoresistive CO2 Gas Sensor. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hu D, Han B, Han R, Deng S, Wang Y, Li Q, Wang Y. SnO2 nanorods based sensing material as an isopropanol vapor sensor. NEW J CHEM 2014. [DOI: 10.1039/c3nj01482g] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Wen W, Wu JM, Wang YD. Flash synthesis of macro-/mesoporous ZnO for gas sensors via self-sustained decomposition of a Zn-based complex. RSC Adv 2013. [DOI: 10.1039/c3ra41735b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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Zhang WH, Zhang WD. Biomolecule-assisted synthesis and gas-sensing properties of porous nanosheet-based corundum In2O3 microflowers. J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2011.11.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Li JG, Lee TS, Jeong KU, Lin CH, Kuo SW. Using highly selective mesoporous thin films to sense volatile organic compounds. RSC Adv 2012. [DOI: 10.1039/c2ra21553e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Flueckiger J, Ko FK, Cheung KC. Microfabricated formaldehyde gas sensors. SENSORS (BASEL, SWITZERLAND) 2009; 9:9196-215. [PMID: 22291561 PMCID: PMC3260638 DOI: 10.3390/s91109196] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2009] [Revised: 11/06/2009] [Accepted: 11/07/2009] [Indexed: 11/16/2022]
Abstract
Formaldehyde is a volatile organic compound that is widely used in textiles, paper, wood composites, and household materials. Formaldehyde will continuously outgas from manufactured wood products such as furniture, with adverse health effects resulting from prolonged low-level exposure. New, microfabricated sensors for formaldehyde have been developed to meet the need for portable, low-power gas detection. This paper reviews recent work including silicon microhotplates for metal oxide-based detection, enzyme-based electrochemical sensors, and nanowire-based sensors. This paper also investigates the promise of polymer-based sensors for low-temperature, low-power operation.
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Affiliation(s)
- Jonas Flueckiger
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada; E-Mail:
| | - Frank K. Ko
- Department of Materials Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada; E-Mail:
| | - Karen C. Cheung
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver BC, V6T 1Z4, Canada; E-Mail:
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