Isosymmetric structural phase transition of the orthorhombic lanthanum gallate structure as a function of temperature determined by Rietveld analysis

Tang, Yunqing; López-Cartés, C.; Avilés, M.A.; Córdoba, J.M.

doi:10.1039/c8ce00726h

Cited by 4 publications

(1 citation statement)

References 27 publications

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“…Interestingly we have found that mechanical properties like thermal conductivity of CeO 2 increases with increase in unpaired electron of 4f orbital with doped lanthanides. 71 We have calculated thermal conductivity of CeO 2 with different approximations are 4.90 (PBE), 4.99 (LDA), and 4.98 (HSE). Values obtained from HSE calculations of thermal conductivity matches with various experimental findings.…”

Section: Resultsmentioning

confidence: 99%

Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Pandey,

Tiwari,

Paliwal

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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A combined experimental and theoretical study on thermal conductivity, heat transfer specific heat, and electronic properties has been done for doped CeO2/water nanofluid. First, the sol-gel method was implemented for the synthesis of doped CeO2 nanoparticles and then a mixture of nanoparticles with different concentrations of nanofluid. X-ray diffraction and SEM analysis confirm the structural phase purity and homogeneous mixing of nanofluids. Experimental thermal conductivity and specific heat of pure and 4f-doped CeO2 were estimated and found very close to our theoretical calculations. Experimental investigations have been carried out for the measurement of heat transfer using pure and doped CeO2/water nanofluid as the coolant. The experiments were aimed at determining the heat transfer and other thermal properties with different concentrations and with various fluid with Reynolds number 2500 and 3500. The heat transfer coefficient of nanofluids increases not only with an increase in the volume flow rate of the hot water but also increases with increase in the atomic number of dopant elements in CeO2. Electronic states show variation in band gap with doping which may also play an important role in the improvement of solar collectors. It is clear from experimental and theoretical findings that the thermal and electronic properties depend on number of valance electrons. Hence doping of 4f-element in CeO2 plays a vital role to increase the thermal conductivity and tuning of electronic properties leads to many applications in thermal sensors and solar cell-based industries.

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Section: Resultsmentioning

confidence: 99%

Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Pandey,

Tiwari,

Paliwal

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Unveiling the multifaceted properties of a 3d covalent-organic framework: Pressure-induced phase transition, negative linear compressibility and auxeticity

Erkartal

2023

Computational Materials Science

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Doped CeO 2 /Water Nanofluids Analyzed the performance of Thermal Conductivity and Heat Transfer: An Experimental and Theoretical Investigations

Pandey

Tiwari

Paliwal

2023

Preprint

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A combined experimental and theoretical study on thermal conductivity, heat transfer specific heat, and electronic properties has been done for doped CeO2/water nanofluid. First, the sol-gel method was implemented for the synthesis of doped CeO2 nanoparticles and then a mixture of nanoparticles with different water concentrations (i.e. 0.5%,1%, 1.5%) in the form of nanofluid. X-ray diffraction and SEM analysis confirm the structural phase purity and homogeneous mixing of nanofluids. Experimental Thermal conductivity and specific heat of pure and 4f-doped CeO2 were estimated and found very close to our theoretical calculations. Experimental investigations have been carried out for the measurement of heat transfer using pure and doped CeO2/water nanofluid as the coolant. The experiments were aimed at determining the heat transfer and other thermal properties with different concentrations (0.5, 1.0, and 1.5 vol. %) and with various fluid flow rates (1.0 and 3.0 lpm). The heat transfer coefficient of nanofluids increases not only with an increase in the volume flow rate of the hot water but also increases with increase in the atomic number of dopant elements in CeO2. Electronic states show variation in band gap with doping which may also play an important role in the improvement of solar collectors. It is clear from experimental and theoretical findings that the thermal and electronic properties depend on number of valance electrons. Hence doping of 4f-element in CeO2 plays a vital role to increase the thermal conductivity and tunning of electronic properties leads to many applications in thermal sensors and solar cell-based industries.

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Isosymmetric structural phase transition of the orthorhombic lanthanum gallate structure as a function of temperature determined by Rietveld analysis

Abstract: High energy planetary ball milling has been used to synthesize pseudo-cubic highly-pure LaGaO3 in one hour from its oxide components in an air atmosphere.

Cited by 4 publications

References 27 publications

Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Unveiling the multifaceted properties of a 3d covalent-organic framework: Pressure-induced phase transition, negative linear compressibility and auxeticity

Doped CeO 2 /Water Nanofluids Analyzed the performance of Thermal Conductivity and Heat Transfer: An Experimental and Theoretical Investigations

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Isosymmetric structural phase transition of the orthorhombic lanthanum gallate structure as a function of temperature determined by Rietveld analysis

Abstract: High energy planetary ball milling has been used to synthesize pseudo-cubic highly-pure LaGaO3 in one hour from its oxide components in an air atmosphere.

Cited by 4 publications

References 27 publications

Doped CeO2/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Doped CeO2/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Unveiling the multifaceted properties of a 3d covalent-organic framework: Pressure-induced phase transition, negative linear compressibility and auxeticity

Doped CeO 2 /Water Nanofluids Analyzed the performance of Thermal Conductivity and Heat Transfer: An Experimental and Theoretical Investigations

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Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations

Doped CeO₂/water nanofluids analyzed the performance of thermal conductivity and heat transfer: An experimental and theoretical investigations