Simple self-assembly of 3D laminated CuO/SnO2 hybrid for the detection of triethylamine

Shang, Yangyang; Shi, Wenqiong; Zhao, Ruihua; Ahmed, Maruf; Li, Jinping; Du, Jianping

doi:10.1016/j.cclet.2020.01.009

Cited by 27 publications

(15 citation statements)

References 34 publications

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“…In addition to using pristine p-type MOX, composite structures, such as a combination different MOX, are also used to detect VOCs, for example, CuO/SnO 2 for triethylamine detection [ 119 ]; CuO/Ga 2 O 3 , [ 120 ] CuO/WO 3 , ZnO/NiO, and Co 3 O 4 /ZnO for acetone detection [ 121 , 122 , 123 ]; TeO 2 /Co 3 O 4 , Fe 2 O 3 /Co 3 O 4 , ZnO/Co 3 O 4 , and SnO 2 /NiO for ethanol detection [ 124 , 125 , 126 , 127 ]; PtO 2 /CuO for butanol detection [ 128 ]; and (CuO-Cu 2 O)/ZnO:Al for VOC detection (specifically butanol) [ 129 ].…”

Section: Sensing Properties Of P-type Mox Thin Filmsmentioning

confidence: 99%

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Moumen

Kumarage

Comini

2022

Sensors

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This review focuses on the synthesis of p-type metal-oxide (p-type MOX) semiconductor thin films, such as CuO, NiO, Co3O4, and Cr2O3, used for chemical-sensing applications. P-type MOX thin films exhibit several advantages over n-type MOX, including a higher catalytic effect, low humidity dependence, and improved recovery speed. However, the sensing performance of CuO, NiO, Co3O4, and Cr2O3 thin films is strongly related to the intrinsic physicochemical properties of the material and the thickness of these MOX thin films. The latter is heavily dependent on synthesis techniques. Many techniques used for growing p-MOX thin films are reviewed herein. Physical vapor-deposition techniques (PVD), such as magnetron sputtering, thermal evaporation, thermal oxidation, and molecular-beam epitaxial (MBE) growth were investigated, along with chemical vapor deposition (CVD). Liquid-phase routes, including sol–gel-assisted dip-and-spin coating, spray pyrolysis, and electrodeposition, are also discussed. A review of each technique, as well as factors that affect the physicochemical properties of p-type MOX thin films, such as morphology, crystallinity, defects, and grain size, is presented. The sensing mechanism describing the surface reaction of gases with MOX is also discussed. The sensing characteristics of CuO, NiO, Co3O4, and Cr2O3 thin films, including their response, sensor kinetics, stability, selectivity, and repeatability are reviewed. Different chemical compounds, including reducing gases (such as volatile organic compounds (VOCs), H2, and NH3) and oxidizing gases, such as CO2, NO2, and O3, were analyzed. Bulk doping, surface decoration, and heterostructures are some of the strategies for improving the sensing capabilities of the suggested pristine p-type MOX thin films. Future trends to overcome the challenges of p-type MOX thin-film chemical sensors are also presented.

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Section: Sensing Properties Of P-type Mox Thin Filmsmentioning

confidence: 99%

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Moumen

Kumarage

Comini

2022

Sensors

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“…These systems enable an accurate and rapid qualification and quantification of VOCs through the interactions that occur on the surface of the sensor when they experience contact with the analyte [ 30 , 31 ]. Due to their flexibility and scientifically relevant results, sensor array-based systems have proved their suitability for the assessment of common VOCs such as acetone [ 32 ], ethanol [ 33 ], butanol [ 34 ], formaldehyde [ 35 ], triethylamine [ 36 ], methanol [ 37 ], isopropanol [ 38 ], ethyl acetate [ 39 ], benzene [ 40 ], or acetic acid [ 41 ], among many others.…”

Section: Introductionmentioning

confidence: 99%

Graphene Oxide Thin Films for Detection and Quantification of Industrially Relevant Alcohols and Acetic Acid

Moura

Pivetta

Vassilenko

et al. 2023

Sensors

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Industrial environments are frequently composed of potentially toxic and hazardous compounds. Volatile organic compounds (VOCs) are one of the most concerning categories of analytes commonly existent in the indoor air of factories’ facilities. The sources of VOCs in the industrial context are abundant and a vast range of human health conditions and pathologies are known to be caused by both short- and long-term exposures. Hence, accurate and rapid detection, identification, and quantification of VOCs in industrial environments are mandatory issues. This work demonstrates that graphene oxide (GO) thin films can be used to distinguish acetic acid, ethanol, isopropanol, and methanol, major analytes for the field of industrial air quality, using the electronic nose concept based on impedance spectra measurements. The data were treated by principal component analysis. The sensor consists of polyethyleneimine (PEI) and GO layer-by-layer films deposited on ceramic supports coated with gold interdigitated electrodes. The electrical characterization of this sensor in the presence of the VOCs allows the identification of acetic acid in the concentration range from 24 to 120 ppm, and of ethanol, isopropanol, and methanol in a concentration range from 18 to 90 ppm, respectively. Moreover, the results allows the quantification of acetic acid, ethanol, and isopropanol concentrations with sensitivity values of 3.03±0.12*104, -1.15±0.19*104, and -1.1±0.50*104 mL−1, respectively. The resolution of this sensor to detect the different analytes is lower than 0.04 ppm, which means it is an interesting sensor for use as an electronic nose for the detection of VOCs.

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“…Generally, gas-sensitive materials are critical to the performance of gas sensors, and they are mainly semiconductor metal oxides including SnO 2 , − ZnO, , Fe 2 O 3 , In 2 O 3 , WO 3 , etc., which have been proven to have gas-sensitive responses to different gases. Among them, as a wide-gap n-type semiconductor, ZnO has received wide attention for its excellent chemical properties, thermal stability, and high gas sensitivity. , However, it also has some disadvantages, such as high operating temperature, low selectivity, and slow recovery, and further optimization processing is needed.…”

Section: Introductionmentioning

confidence: 99%

ZnO-CuO Hollow Nanocages Derived from Metal–Organic Frameworks for Selective H₂S Sensing

Cao

Gao

et al. 2022

ACS Appl. Nano Mater.

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Metal–organic frameworks (MOFs) are considered potential materials in the gas sensor field because of their extremely porous, adjustable characteristics and high surface area. In this paper, based on a ZIF-8 precursor, ZnO-CuO hollow nanocage heterostructure materials were successfully fabricated by a multistep method, and the prepared ZnO-CuO sensor exhibited excellent respond to H2S. We found that when the mass ratio of CuO reaches 1 wt %, the response to 10 ppm hydrogen sulfide (H2S) was as high as 70, and the recovery time was 55 s at a low temperature of 115 °C. Such a ZnO-CuO sensor has a highly selective response to H2S gas. In addition, the lower detection limit can reach 200 ppb. Furthermore, the gas sensors also had high consistency and repeatability. Gas sensing mechanism studies have shown that the special nanocage structure with larger specific surface area helps to increase gas adsorption and diffusion on the surface of sensing materials, and the formation of p–n heterostructures by the introduction of CuO improves the sensitive and selective response to H2S. This work will improve the practical application of H2S gas sensors for their simple preparation method and research into the response mechanism.

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Simple self-assembly of 3D laminated CuO/SnO2 hybrid for the detection of triethylamine

Cited by 27 publications

References 34 publications

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Graphene Oxide Thin Films for Detection and Quantification of Industrially Relevant Alcohols and Acetic Acid

ZnO-CuO Hollow Nanocages Derived from Metal–Organic Frameworks for Selective H₂S Sensing

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Simple self-assembly of 3D laminated CuO/SnO2 hybrid for the detection of triethylamine

Cited by 27 publications

References 34 publications

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

P-Type Metal Oxide Semiconductor Thin Films: Synthesis and Chemical Sensor Applications

Graphene Oxide Thin Films for Detection and Quantification of Industrially Relevant Alcohols and Acetic Acid

ZnO-CuO Hollow Nanocages Derived from Metal–Organic Frameworks for Selective H2S Sensing

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Resources

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ZnO-CuO Hollow Nanocages Derived from Metal–Organic Frameworks for Selective H₂S Sensing