Exploring the coordination change of vanadium and structure transformation of metavanadate MgV2O6 under high pressure

Tang, Ruilian; Xie, Songhai; Li, Nana; Chen, Jiuhua; Chen, Gao; Zhu, Pinwen; Wang, Xin

doi:10.1038/srep38566

Cited by 31 publications

(19 citation statements)

References 55 publications

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“…Thus, they can be used as models for the HP behaviour of other compounds like phosphates and silicates under extreme compression. Indeed, coordination changes have been reported to occur in orthovanadates like MgV2O6 at only 4 GPa [228]. In this compound, the HP structural change only produces a coordination change of vanadium atoms from 5 + 1 to 6.…”

Section: Pressure-induced Coordination Changesmentioning

confidence: 94%

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Errandonea

Garg

2018

Progress in Materials Science

119

143

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AVO4 orthovanadates are materials of fundamental and technological importance due to the large variety of functional properties exhibited by them. These materials have potential applications such as scintillators, thermophosphors, photocatalysts, and cathodoluminescence materials among others. They are also used as laser-host crystals.Studies at high pressures and temperatures are helpful for understanding the physical properties of the solid state, in particular, the phase behaviour of AVO4 materials. For instance, they have contributed to the understanding of the macroscopic properties of orthovanadates in terms of microscopic mechanisms. A great progress has been made in the last decade towards the study of the pressure-effects on the structural, vibrational, and electronic properties of AVO4 compounds. Thanks to the combination of experimental and theoretical studies, novel metastable structures with interesting * Corresponding author, Email: daniel.errandonea@uv.es, Fax: (34) 96 3543146, Tel.: (34) 96 354 4475 physical properties have been discovered and the high-pressure structural sequence followed by AVO4 oxides has been understood. In this article, we will review highpressure studies carried out on the phase behaviour of different AVO4 compounds. The studied materials include rare-earth orthovanadates and other compounds; for example, BiVO4, FeVO4, CrVO4, and InVO4. In particular, we will focus on discussing the results obtained by different research groups, who have extensively studied orthovanadates up to pressures exceeding 50 GPa. We will make a systematic presentation and discussion of the different results reported in the literature. In addition, with the aim of contributing to the improvement of the actual understanding of the high-pressure properties of ternary oxides, the high-pressure behaviour of orhovanadates will be compared with related compounds; including phosphates, chromates, and arsenates. The behaviour of nanomaterials under compression will also be briefly described and compared with their bulk counterpart. Finally, the implications of the reported studies on technological developments and geophysics will be commented and possible directions for the future studies will be proposed.

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Section: Pressure-induced Coordination Changesmentioning

confidence: 94%

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Errandonea

Garg

2018

Progress in Materials Science

119

143

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“…60,61 It has been reported that some vanadates, such as NaVO 3 and MgV 2 O 6 , need heat treatment to obtain good diffraction patterns of the recovered phase from the high-pressure experiments. 62,63 When the recovered sample was heated at 453 K (below the synthesizing temperature of 513 K) for 3 h, the diffraction peaks still can be indexed to the tetragonal CH structure with the space group I 4̄2 d (Fig. S5c and Table S2†).…”

Section: Resultsmentioning

confidence: 99%

Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS₂ nanocrystals

Tang

et al. 2022

Nanoscale

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“…In both MgV 2 O 6 [25] and ZnV 2 O 6 [27] the room pressure structure (C2/m) decreases its symmetry presenting a phase transformation to a C2-phase when pressures of about 20 GPa and 17 GPa, respectively, are applied. The relative wavenumber of the most intense peak of the Raman spectrum of MgV 2 O 6 (ω = 922 cm −1 ) reduces when external pressure up to P = 3.9 GPa is applied, there an increasing in the coordination number (CN) from 5+1 to 6 occurs [25]. At higher pressures the relative wavenumber of the Raman mode increases continuously until at least P = 28 GPa.…”

Section: Raman Spectroscopymentioning

confidence: 99%

Structural properties and Raman spectra of columbite-type NiNb$_{2-x}$V$_x$O$_6$ synthesized under high pressure

Peña,

Bouvier,

Isnard

2020

Preprint

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The complete set of structural parameters of the new series of compounds NiNb 2−x V x O 6 (0 ≤ x ≤ 2) with the unusual columbite-type structure is presented here. In the samples containing vanadium, this crystalline structure was stabilized by synthesis in conditions of high pressure and high temperature. Here we report here the first Raman spectrum for the NiV 2 O 6 -Pbcn polymorph and extend the list of the previously observed modes for the NiNb 2 O 6 . The evolution of the vibrational Raman spectrum produced when the vanadium is substituted for niobium along the series is also presented and discussed. This evolution is interpreted by taking into account the changes in the local structural environment of the niobium/vanadium atoms and its influence over the nickel-oxygen bonds around them. The presence of vanadium atoms favors an increase of the symmetry in the arrangement of oxygen atoms around the nickel-ones; in counterpart, the vanadium is in an octahedral environment which is more distorted than that of the niobium. Because of these apparently subtle differences, the homogeneous distribution of vanadium in the solid solution NiNb 2−x V x O 6 is not possible.

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Exploring the coordination change of vanadium and structure transformation of metavanadate MgV2O6 under high pressure

Cited by 31 publications

References 55 publications

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS₂ nanocrystals

Structural properties and Raman spectra of columbite-type NiNb$_{2-x}$V$_x$O$_6$ synthesized under high pressure

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Exploring the coordination change of vanadium and structure transformation of metavanadate MgV2O6 under high pressure

Cited by 31 publications

References 55 publications

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Recent progress on the characterization of the high-pressure behaviour of AVO4 orthovanadates

Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS2 nanocrystals

Structural properties and Raman spectra of columbite-type NiNb$_{2-x}$V$_x$O$_6$ synthesized under high pressure

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Pressure-induced bandgap engineering and photoresponse enhancement of wurtzite CuInS₂ nanocrystals