Beneficial effect of Sn doping on bismuth ferrite nanoparticle-based sensor for enhanced and highly selective detection of trace formaldehyde

Das, Tanushri; Mojumder, Subhajit; Chakraborty, Saikat; Saha, Dibyajyoti; Pal, Mrinal

doi:10.1016/j.apsusc.2022.154340

Cited by 25 publications

(6 citation statements)

References 56 publications

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“…These [CeO 8 ]′ and [CeO 8 ]′′ facilitate electron transfer from the host materials to the chemisorbed oxygen molecule to generate O 2 − (ads), as described by the reaction: O 2 (gas) + e − ↔ O 2 − (ads). 54–57 In order to validate the gas-sensing ability of our synthesized NCMO nanostructures as a proof of concept, we carried out a series of sensing measurements using NCMO 0.00 , NCMO 0.50 , NCMO 0.78 and NCMO 1.00 as a resistive sensor probe against NH 3 , CH 3 COCH 3 , C 2 H 5 OH, CH 3 OH and HCHO at different operating temperatures (200–450 °C) at intervals of 50 °C. An optimum operating temperature of ∼300 °C was observed for all the samples (shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

Haldar,

Mondal,

Das

et al. 2024

Mater. Adv.

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Section: Resultsmentioning

confidence: 99%

“…These [CeO 8 ] 0 and [CeO 8 ] 00 facilitate electron transfer from the host materials to the chemisorbed oxygen molecule to generate O 2 À (ads), as described by the reaction: O 2 (gas) + e À 2 O 2 À (ads). [54][55][56][57]…”

Section: Investigations Of Gas-sensing Properties Of Ncmo Nanostructuresmentioning

confidence: 99%

A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

Haldar,

Mondal,

Das

et al. 2024

Mater. Adv.

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“…The response values of the sensor show a linear relationship with a unitary equation with correlation coefficients of R 2 = 0.998, indicating that the experimental and theoretical data can be matched perfectly. 30 According to the actual test results, the response value of the LFS microspheres to 0.5 ppm of formaldehyde at 200 °C is 8.1. Combined with the linear fitting equation of LFS (y = 3.32 + 7.57x), it is found that the theoretical response value of the sensor is as high as 3.32 when the formaldehyde concentration is as low as 1 ppb, which is superior to that of the data in the Table S1.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The relationship between the response of the LFS microspheres and the gas concentration is shown in the insets of Figure d. The response values of the sensor show a linear relationship with a unitary equation with correlation coefficients of R 2 = 0.998, indicating that the experimental and theoretical data can be matched perfectly . According to the actual test results, the response value of the LFS microspheres to 0.5 ppm of formaldehyde at 200 °C is 8.1.…”

Section: Resultsmentioning

confidence: 99%

Nonstoichiometric Doping of La_0.9Fe_xSn_1–xO₃ Hollow Microspheres for an Ultrasensitive Formaldehyde Sensor

Zhang,

Xu,

Zhou

et al. 2023

ACS Sens.

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Oxygen vacancies play an essential role in gas-sensitive materials, but the intrinsic oxides are poorly controlled and contain low oxygen vacancy concentrations. In this work, we prepared La0.9Fe1–x Sn x O3 microspheres with high sensitivity and controllability by a simple hydrothermal method, and then, we demonstrated that it has many oxygen ion defects by X-ray photoelectron spectroscopy and electron paramagnetic resonance characterization. The gas sensor exhibited ultrahigh response, specific recognition of formaldehyde gas, and excellent moisture resistance. By comparing the composites with different doping ratios, it was found that the highest catalytic activity was reached when x = 0.75, and the response value of La0.9Fe0.75Sn0.25O3 hollow microspheres at 200 °C reached 73–10 ppm of formaldehyde, which is 188% higher than that of intrinsic LaFeO3 hollow microspheres. On the one hand, due to the absence of A-site La3+ and the replacement of B-site Fe3+ by Sn4+, a large number of oxygen vacancies are induced on the surface and in the interior of the materials; on the other hand, it is also related to the large specific surface area and gas channels caused by the particular structure.

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“…Doping is a fruitful source of different physical and chemical properties [ 15 , 16 , 17 ]. For instance, the modification of the ferroelectric and magnetic properties of transition metal- and rare earth-doped BiFeO 3 is well documented in previous reports [ 18 , 19 , 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

et al. 2022

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This work presents optical and multiferroic properties of bismuth ferrite thin films that are affected by zirconium and dysprosium substitution. Non-centrosymmetric BiFeO3,Bi0.95Zr0.05FeO3, and Bi0.95Dy0.05FeO3 thin films were coated on Pt/TiO2/SiO2/Si substrates using the spin coating method. The crystal structure, optical properties, microstructural, ferromagnetic, and ferroelectric properties of doped bismuth ferrite thin films were systematically investigated. From the XRD patterns, all the prepared thin films matched well with the rhombohedral structure with R3c space group with no observed impurity phases. The average crystallite size of the bismuth ferrite thin films were between 35 and 47 nm, and the size depended on the type of dopant. The determined energy band gap values of BiFeO3, Bi0.95Dy0.05FeO3, and Bi0.95Zr0.05FeO3 thin films were 2.32 eV, 2.3 eV, and 2 eV, respectively. Doping of Dy and Zr at the Bi site led to reduced surface roughness. The prepared thin films exhibited enhanced ferromagnetic and ferroelectric properties. The remnant magnetization of Zr-doped BiFeO3 was greater than that of the BiFeO3 and Dy-doped BiFeO3 thin films. From the obtained results, it was concluded that Zr-doped BiFeO3 thin films are suitable for solar cell fabrication.

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Beneficial effect of Sn doping on bismuth ferrite nanoparticle-based sensor for enhanced and highly selective detection of trace formaldehyde

Cited by 25 publications

References 56 publications

A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

Nonstoichiometric Doping of La_0.9Fe_xSn_1–xO₃ Hollow Microspheres for an Ultrasensitive Formaldehyde Sensor

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

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Beneficial effect of Sn doping on bismuth ferrite nanoparticle-based sensor for enhanced and highly selective detection of trace formaldehyde

Cited by 25 publications

References 56 publications

A truncated octahedron NaCe(MoO4)2 nanostructure: a potential material for blue emission and acetone sensing

A truncated octahedron NaCe(MoO4)2 nanostructure: a potential material for blue emission and acetone sensing

Nonstoichiometric Doping of La0.9FexSn1–xO3 Hollow Microspheres for an Ultrasensitive Formaldehyde Sensor

Tunable Optical and Multiferroic Properties of Zirconium and Dysprosium Substituted Bismuth Ferrite Thin Films

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A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

A truncated octahedron NaCe(MoO₄)₂ nanostructure: a potential material for blue emission and acetone sensing

Nonstoichiometric Doping of La_0.9Fe_xSn_1–xO₃ Hollow Microspheres for an Ultrasensitive Formaldehyde Sensor