Synthesis of hollow spheres of BiFeO3 from nitrate solutions with tartaric acid: Morphology and magnetic properties

Дмитриев, А. В.; Владимирова, Е. В.; Kandaurov, M. V.; Келлерман, Д. Г.; Kuznetsov, M. V.; Buldakova, L.U.; Samigullina, R. F.

doi:10.1016/j.jallcom.2018.10.387

Cited by 26 publications

(16 citation statements)

References 17 publications

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“…Spherical BFO agglomerates were synthesized by ultrasonic spray pyrolysis (USP) from a solution of iron and bismuth nitrates with addition of 6 moles of tartaric acid (TA) per 1 mole of BiFeO 3 . The synthesis procedure is described in detail in works [18,19].…”

Section: Methodsmentioning

confidence: 99%

“…Examples of nanoparticles assembling are such materials as nanofibers [15], nanotubes [16], hollow spheres [17,18] etc. consisting of randomly oriented nanocrystals [15,18].…”

Section: Introductionmentioning

confidence: 99%

“…Examples of nanoparticles assembling are such materials as nanofibers [15], nanotubes [16], hollow spheres [17,18] etc. consisting of randomly oriented nanocrystals [15,18]. Earlier we showed that spherical agglomerates of about 1 µm in size possess at room temperature weak ferromagnetism typical of nanoparticles making up spheres [18].…”

Section: Introductionmentioning

confidence: 99%

“…consisting of randomly oriented nanocrystals [15,18]. Earlier we showed that spherical agglomerates of about 1 µm in size possess at room temperature weak ferromagnetism typical of nanoparticles making up spheres [18]. At the same time, there are no available data on the presence of low-temperature phase transitions typical of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Spin-glass transition in porous spheres BiFeO3

Dmitriev¹,

Владимирова²,

Semkin³

et al. 2020

Nanosystems: Phys. Chem. Math.

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Magnetic properties of porous spheres BiFeO 3 have been studied at temperatures ranging from 2 to 300 K. A transition to cluster spin glass state has been detected in the region of about 100 K. The presence of the transition is confirmed by nonlinear variation of coercive force and the appearance of exchange displacement of magnetic hysteresis loops at temperature below 100 K. Temperature dependence of magnetization for zero-field cooled regime exhibit a maximum at some temperature Tm. The function Tm(H) (H is magneic field) changes in accordance with Almeida-Thouless line. The performed measurements of the frequency dependence of AC susceptibility confirm the behavior of spin glass with spin freezing temperature T f = 116 K. The critical index zν = 2.5 agrees well with the mean-field theory zν = 2.0.

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Section: Methodsmentioning

confidence: 99%

“…Examples of nanoparticles assembling are such materials as nanofibers [15], nanotubes [16], hollow spheres [17,18] etc. consisting of randomly oriented nanocrystals [15,18].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Spin-glass transition in porous spheres BiFeO3

Dmitriev¹,

Владимирова²,

Semkin³

et al. 2020

Nanosystems: Phys. Chem. Math.

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show abstract

“…Среди различных методов синтеза ультразвуковой спрей-пиролиз (USP) является простым и универсальным подходом, позволяющим управлять процессом самосборки полых сфер из растворов. Изменяя скорость удаления растворителя (за счет варьирования температуры сушки капель аэрозоля) и скорость диффузии растворенных компонент (за счет образования металлоорганических комплексов), получают сферы различной морфологии [25,26,27].…”

Section: Introductionunclassified

Морфология и магнитные свойства полых сфер Co-=SUB=-3-=/SUB=-O-=SUB=-4-=/SUB=-

Дмитриев¹,

Владимирова²,

Есаулков³

et al. 2020

Физика Твердого Тела

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Nanostructured hollow spheres of Co3O4 were synthesized by ultrasonic spray pyrolysis. Nanocrystals forming the structure of spheres differ in size and packing density, depending on the synthesis conditions. The samples were certified by X-ray diffraction, scanning electron microscopy, low-temperature nitrogen sorption, vacuum pycnometry, Raman and XPS spectroscopy. The field and temperature dependences of the magnetization showed that the size and packing density of nanocrystals determine the magnetic characteristics and the Néel temperature of hollow Co3O4 spheres.

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Recent Development Strategies for Bismuth‐Driven Materials in Sustainable Energy Systems and Environmental Restoration

Adhikari

Mandal

Kim

2022

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Bismuth(Bi)‐based materials have gained considerable attention in recent decades for use in a diverse range of sustainable energy and environmental applications due to their low toxicity and eco‐friendliness. Bi materials are widely employed in electrochemical energy storage and conversion devices, exhibiting excellent catalytic and non‐catalytic performance, as well as CO2/N2 reduction and water treatment systems. A variety of Bi materials, including its oxides, chalcogenides, oxyhalides, bismuthates, and other composites, have been developed for understanding their physicochemical properties. In this review, a comprehensive overview of the properties of individual Bi material systems and their use in a range of applications is provided. This review highlights the implementation of novel strategies to modify Bi materials based on morphological and facet control, doping/defect inclusion, and composite/heterojunction formation. The factors affecting the development of different classes of Bi materials and how their control differs between individual Bi compounds are also described. In particular, the development process for these material systems, their mass production, and related challenges are considered. Thus, the key components in Bi compounds are compared in terms of their properties, design, and applications. Finally, the future potential and challenges associated with Bi complexes are presented as a pathway for new innovations.

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Synthesis of hollow spheres of BiFeO3 from nitrate solutions with tartaric acid: Morphology and magnetic properties

Cited by 26 publications

References 17 publications

Spin-glass transition in porous spheres BiFeO3

Spin-glass transition in porous spheres BiFeO3

Морфология и магнитные свойства полых сфер Co-=SUB=-3-=/SUB=-O-=SUB=-4-=/SUB=-

Recent Development Strategies for Bismuth‐Driven Materials in Sustainable Energy Systems and Environmental Restoration

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