Calorimetric studies on 2TeO2–V2O5 glasses

Ahamad, M. Niyaz; Vaish, Rahul; Varma, K. B. R.

doi:10.1007/s10973-011-1305-3

Cited by 11 publications

(3 citation statements)

References 13 publications

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“…A borate system was selected because of a previously reported study in which vanadate compounds have been embedded in a borate glass matrix 19 . Vanadate systems have been selected because a low-processing temperature is expected for synthesis 20–22 .…”

Section: Resultsmentioning

confidence: 99%

“…Hence, the low stability and resistivity in B 2 O 3 –P 2 O 5 –V 2 O 5 are thought to be related to a similar structural scenario. Meanwhile, the glasses in the TeO 2 –V 2 O 5 system comprise of V–O and Te–O polyhedral units, leading to a three-dimensional network structure in binary and multicomponent systems 20–22 . Hence, it is hypothesised that a 3D structure provides a stable network and considerably contributes to the high thermal stability against crystallisation and water resistivity in the BaO–TeO 2 –V 2 O 5 system.…”

Section: Discussionmentioning

confidence: 99%

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VO2-dispersed glass: A new class of phase change material

Muramoto

Takahashi

Terakado

et al. 2018

Sci Rep

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Energy storage technology is crucial for a sustainable society, and its realisation strongly depends on the development of materials. Oxide glass exhibits high durability. Moreover, the amorphous structure of the glass without periodic ordering demonstrates excellent formability and controllability, thus enabling a large-scale production. These factors provide impetus for the development of new materials for thermal management applications. As vanadium dioxide (VO2) with a strongly correlated electron system exhibits a structural phase transition, leading to a large heat of transition. Therefore, VO2 demonstrates immense potential as a phase change material (PCM). This study reports the fabrication of VO2-dispersed glass and examines its potential as a new latent heat storage material, which can be applied for massive PCM heat storage applications.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

VO2-dispersed glass: A new class of phase change material

Muramoto

Takahashi

Terakado

et al. 2018

Sci Rep

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“…30BaO-10TeO 2 -60V 2 O 5 (in mol%) glass was selected as the matrix on the basis of thermal and waterimmersion tests. It was suggested that the Te-O polyhedral units contributed to a three-dimensional network structure of the glass (Ahamad et al, 2012), resulting in its high water resistivity. On the other hand, the deposit amount of Te element is relatively small, being comparable to that of noble metals, and additionally Te, and its related compounds are toxic.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of VO2-Dispersed Glass in B2O3-P2O5-V2O5 System and Its Thermal Property

et al. 2020

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Phase change material (PCM), which enables heat storage based on phase transition, plays an important role for efficient energy utilization. This paper briefly describes our recent study about all-solid PCM by combination of vanadium dioxide (VO 2 ) with latent heat storage capacity and multicomponent glass, i.e., VO 2 -dispersed glass. A B 2 O 3 -P 2 O 5 -V 2 O 5 glass system is used as a matrix for the VO 2 -dispersed glass. An attempt to describe its latent heat storage function is given. Endothermic behavior due to structural phase transition of the VO 2 crystals was observed in the VO 2 -dispersed sample, and the transition enthalpy corresponding to latent heat storage capacity was estimated to be H∼9.5 J/g. The value of the studied sample was larger than the value of dispersed glass in the BaO-TeO 2 -V 2 O 5 system that was previously reported. Potential for PCM was considered in the studied sample.

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