Synthesis of SnO2 Nanoparticles via Hydrothermal Method and Their Gas Sensing Applications for Ethylene Detection

Akhir, Maisara Azad Mat; Rezan, Sheikh Abdul; Mohamed, Khairudin; Arafat, M.M.; Haseeb, A.S.M.A.; Lee, H.L.

doi:10.1016/j.matpr.2019.06.367

Cited by 24 publications

(3 citation statements)

References 8 publications

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“…Further, nanoparticles and nanostructures offer increased surface area as a percentage of overall sensor volume for increased sensitivity and lower detection limits. Tin oxide nanoparticle sensors enhanced with palladium respond to ethylene concentrations in the tens of ppm [123]. Carbon nanotubes offer even higher surface-to-volume ratios than nanoparticle-based gas sensors by facilitating the adsorption of gas molecules (including ethylene) on both the interior and exterior of their hollow tubelike structures.…”

Section: Other Chemical Sensorsmentioning

confidence: 99%

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

Wilson

2021

Sensors

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Farm-to-table operations produce, transport, and deliver produce to consumers in very different ways than conventional, corporate-scale agriculture operations. As a result, the time it takes to get a freshly picked fruit to the consumer is relatively short and the expectations of the consumer for freshness and quality are high. Since many of these operations involve small farms and small businesses, resources to deploy sensors and instruments for monitoring quality are scarce compared to larger operations. Within stringent power, cost, and size constraints, this article analyzes chemical sensor technologies suitable for monitoring fruit quality from the point of harvest to consumption in farm-to-table operations. Approaches to measuring sweetness (sugar content), acidity (pH), and ethylene gas are emphasized. Not surprisingly, many instruments developed for laboratory use or larger-scale operations are not suitable for farm-to-table operations. However, there are many opportunities still available to adapt pH, sugar, and ethylene sensing to the unique needs of localized farm-to-table operations that can help these operations survive and expand well into the future.

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Section: Other Chemical Sensorsmentioning

confidence: 99%

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

Wilson

2021

Sensors

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“…Further, low resistivity, and high chemical, mechanical and thermal stability are essential properties (17,18,19). SnO2 NPs have been synthesized by chemical precipitation (20), thermal evaporation (21), sol-gel method (22), hydrothermal method (23), co-precipitation (24), and pyrosol process (25). Photocatalytic elements such as Zinc oxide (ZnO), titanium dioxide (TiO2), tungsten trioxide (WO3), ferric oxide (Fe2O3), copper oxide (Cu2O), and tin dioxide (SnO2) play a significant role in environmental applications, for example, water purification and decrease harmful ingredients in the environment (26).…”

Section: Introductionmentioning

confidence: 99%

Influence of copper concentration on structural, morphological, and optical properties of tin oxide (Sn 1−x Cu x O 2−δ )

verma,

Das

2023

Preprint

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The main purpose of this article is to discuss a few advantages of Cu (transition metal) doped SnO2 (Sn1 − xCuxO2−δ) bulk nanoparticles that have been prepared by applying a simple and reasonably priced technique solid-state reaction method. To analyze especially, tunning of bandgap and other structural, morphological properties of Cu-doped SnO2 materials are examined by different innovative methods. Samples were characterized by XRD which confirms that SnO2 has a rutile type tetragonal-shaped structure that goes to the space group P42/mnm (number 136). SEM images indicate that SnO2 nanoparticles are inhomogeneous and densely closed with each other and an average particle size is approx 225–430 nm. The TEM images indicate that grains are present in a few cubic and spherical shapes. We observed grain size also increased (20-90nm) when we doped Copper in SnO2 nanoparticles. UV-Vis spectroscopy inspected that the band gap of (Sn1 − xCuxO2−δ) sample is increased from 3.531eV to 3.701eV. XPS (X-ray Photoelectron Spectroscopy) identifies the electronic state of Sn and Cu atoms found to be 4+ and 2+ respectively. RAMAN spectroscopy identifies only three vibrational modes, i.e., (A1g, B2g, and doubly degenerate Eg) in pure and Cu-doped SnO2 nanomaterial (Sn1 − xCuxO2−δ).

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“…Figure2shows the SEM images of the SnO 2 NP, MoS 2 NS, and SnO 2 anode covered with the MoS 2 NS layer. To prepare the SnO 2 NPs, an easy hydrothermal method was selected to obtain a uniform and highly crystalline material[40][41][42]. Sn(OH) x precipitation using NH 4 OH solution and hydrothermal processing were applied to develop the crystalline structures of the SnO 2 NPs.…”

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confidence: 99%

Self-Assembled Few-Layered MoS2 on SnO2 Anode for Enhancing Lithium-Ion Storage

Nguyen

Kim

2020

Nanomaterials

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SnO2 nanoparticles (NPs) have been used as reversible high-capacity anode materials in lithium-ion batteries, with reversible capacities reaching 740 mAh·g−1. However, large SnO2 NPs do not perform well in charge–discharge cycling. In this work, we report the incorporation of MoS2 nanosheet (NS) layers with SnO2 NPs. SnO2 NPs of ~5 nm in diameter synthesized by a facile hydrothermal precipitation method. Meanwhile, MoS2 NSs of a few hundreds of nanometers to a few micrometers in lateral size were produced by top-down chemical exfoliation. The self-assembly of the MoS2 NS layer on the gas–liquid interface was first demonstrated to achieve up to 80% coverage of the SnO2 NP anode surface. The electrochemical properties of the pure SnO2 NPs and MoS2-covered SnO2 NP anodes were investigated. The results showed that the SnO2 electrode with a single-layer MoS2 NS film exhibited better electrochemical performance than the pure SnO2 anode in lithium storage applications.

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Synthesis of SnO2 Nanoparticles via Hydrothermal Method and Their Gas Sensing Applications for Ethylene Detection

Cited by 24 publications

References 8 publications

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

Chemical Sensors for Farm-to-Table Monitoring of Fruit Quality

Influence of copper concentration on structural, morphological, and optical properties of tin oxide (Sn 1−x Cu x O 2−δ )

Self-Assembled Few-Layered MoS2 on SnO2 Anode for Enhancing Lithium-Ion Storage

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