Application of bismuth ferrite protonic conductor for ammonia gas detection

Dziubaniuk, M.; Bujakiewicz-Korońska, Renata; Suchanicz, J.; Wyrwa, Jan; Rękas, M.

doi:10.1016/j.snb.2013.08.020

Cited by 49 publications

(9 citation statements)

References 64 publications

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“…In addition, Bi 25 FeO 40 nanoparticles have a narrow bandgap energy of less than 2.5 eV [2,12,13]. Recently, bismuth ferrite has been most extensively studied for its applications in sensors, photovoltaics, storage devices, spintronics, photocatalysts, and hyperthermia [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles

Juwita

Sulistiani

Darmawan

et al. 2022

Mater. Res. Express

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In this study, the microstructural, optical, and magnetic properties and specific absorption rate (SAR) of bismuth ferrite/SiO2 nanoparticles were successfully investigated. The coprecipitation method was used to synthesize the nanoparticles. X-ray diffraction patterns showed the presence of sillenite-type Bi25FeO40 with a body-centered cubic structure. The crystallite size of Bi25FeO40 was 35.0 nm, which increased to 41.5 nm after SiO2 encapsulation. Transmission electron microscopy images confirmed that all samples were polycrystalline. The presence of Si–O–Si (siloxane) stretching at 1089 cm−1 in Fourier transform infrared spectra confirmed the encapsulation of SiO2. Magnetic measurements at room temperature indicated weak ferromagnetic properties of the samples. The coercivity of the bismuth ferrite nanoparticles was 78 Oe, which increased after SiO2 encapsulation. In contrast, their maximum magnetization, 0.54 emu g−1, reduced after SiO2 encapsulation. The determined bandgap energy of the bismuth ferrite nanoparticles was approximately 2.1 eV, which increased to 2.7 eV after SiO2 encapsulation. The effect of SiO2 encapsulation on the SAR of the samples was investigated using a calorimetric method. The SAR values of the bismuth ferrite nanoparticles were 49, 61, and 84 mW g−1 under alternating magnetic field (AMF) strengths of 150, 200, and 250 Oe, respectively, which decreased after SiO2 encapsulation. The maximum magnetization and the AMF strength influenced the SAR of the nanoparticles. The results showed that SiO2 has a significant effect in determining the microstructural, optical, and magnetic properties and SAR of the nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles

Juwita

Sulistiani

Darmawan

et al. 2022

Mater. Res. Express

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“…Of late, exploration of BFO as a gas sensing material has drawn renewed interest due to its reasonably high response in sensing various gases, such as ammonia, CO, SO2, LPG, ethanol, formaldehyde etc. [18][19][20][21][22] However, there remains a lot more room for systematic investigations to determine the suitability of BFO in gas sensing device applications. For example, tuning of resistance via suitably chosen aliovalent dopants is known to enhance the response and gas selectivity of different oxide semiconductor based sensors by electronically and chemically sensitizing the SMOs respectively.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen sensing characteristics of perovskite based calcium doped BiFeO3 thin films

Bala

Majumder

Dewan

et al. 2019

International Journal of Hydrogen Energy

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Perovskite oxide based thin film gas sensors have long been considered as potential alternatives to commonly investigated binary metal oxides based sensors. BiFeO3, which is a prototype of ptype perovskite based semiconducting oxides, has recently drawn significant attention for its promising gas sensing characteristics. In the present work, the hydrogen sensing characteristics of calcium doped BiFeO3 has been reported by varying the film thickness, doping concentration, operating temperature, and test gas concentration. The films were deposited on glass substrates by sol-gel route using spin coating. X-ray diffraction analyses confirmed formation of phase pure films and scanning electron microscopy confirmed their uniform and dense microstructure. The Ca-doped BiFeO3 sensors exhibit higher sensitivity compared to pure BiFeO3 sensors. It is reported that the film thickness and Ca doping concentration play major role to control hydrogen sensing characteristics of the deposited films. The sensor based on 15% Ca-doped BiFeO3 sensor exhibited very high sensitivity (~212 % at 500 ppm H2), and excellent selectivity towards hydrogen at a moderate operating temperature (~250 °C).The enhanced gas sensing response of the doped BiFeO3 films has been attributed to the higher oxygen vacancy concentration induced by incorporation of aliovalent Ca 2+ .

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“…10,11 Although BFO is also a p-type semiconductor oxide that exhibits gas-sensing properties to some extent, the researches on that area are still limited. [12][13][14] As we know, properly designed aliovalent dopants can enhance the gas response and gas selectivity of oxide semiconductor sensors by electronically sensitizing and chemically sensitizing them, respectively.…”

Section: Introductionmentioning

confidence: 99%

Gas-sensing and electrical properties of perovskite structure p-type barium-substituted bismuth ferrite

et al. 2015

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Application of bismuth ferrite protonic conductor for ammonia gas detection

Cited by 49 publications

References 64 publications

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles

Hydrogen sensing characteristics of perovskite based calcium doped BiFeO3 thin films

Gas-sensing and electrical properties of perovskite structure p-type barium-substituted bismuth ferrite

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Application of bismuth ferrite protonic conductor for ammonia gas detection

Cited by 49 publications

References 64 publications

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO2 nanoparticles

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO2 nanoparticles

Hydrogen sensing characteristics of perovskite based calcium doped BiFeO3 thin films

Gas-sensing and electrical properties of perovskite structure p-type barium-substituted bismuth ferrite

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Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles

Microstructural, optical, and magnetic properties and specific absorption rate of bismuth ferrite/SiO₂ nanoparticles