Thermochemistry of two lead borates; Pb(BO2)2·H2O and PbB4O7·4H2O

Wang, Peipei; Huang, Hongsheng; Li, Ping; Liu, Zhihong

doi:10.1016/j.tca.2010.09.012

Cited by 3 publications

(1 citation statement)

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“…The method for calorimetric experiment is the same as in some of our previous publications. − Rb 2 [Ga(B 5 O 10 )]·4H 2 O can be regarded as the product of reaction 5 in the designed thermochemical cycle (Figure ): normalK 2 [ Ga false( normalB 5 normalO 10 false) ] · 4 normalH 2 normalO ( s ) + 2 RaCl ( s ) = Rb 2 [ Ga false( normalB 5 normalO 10 false) ] · 4 normalH 2 normalO ( s ) + 2 KCl ( s ) …”

Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Yang

Liu

2012

J. Chem. Eng. Data

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A new microporous galloborate of Rb2[Ga(B5O10)]·4H2O has been synthesized under mild hydrothermal conditions, which was characterized by chemical analysis, powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR), differential thermal analysis/thermogravimetry (DTA-TG), and single crystal X-ray diffraction. Its structure possesses a 3D open framework with 11-ring channels constructed by B5O10 clusters and GaO4 units. The enthalpies of solution of RbCl(s), KCl(s), K2[Ga(B5O10)]·4H2O(s), and Rb2[Ga(B5O10)]·4H2O(s) in the solvents at 298.15 K were measured, respectively. By using the standard molar enthalpies of formation for RbCl(s), KCl(s), and K2[Ga(B5O10)]·4H2O(s), Δf H m o of Rb2[Ga(B5O10)]·4H2O(s) was obtained as –(5762.9 ± 9.1) kJ·mol–1 on the basis of the appropriate thermochemical cycle. Moreover, Δf H m o ([Ga(B5O10)]2–) of –(4100.8 ± 9.1) kJ·mol–1 has also estimated by a group contribution method, which can be used to predict the standard molar enthalpies of formation of other galloborates containing the [Ga(B5O10)]2– anionic framework.

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Section: Methodsmentioning

confidence: 99%

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Yang

Liu

2012

J. Chem. Eng. Data

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Determination of standard molar enthalpies of formation for the two lead borates: Pb4B10O19·2.5H2O and Pb6B11O18(OH)9

Wang

Liu

2011

Thermochimica Acta

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Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures

Bülbül

Beyaz

2020

Materials Science-Poland

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Amorphous lead metaborate (Pb(BO2)2 H2O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH 9.2) in the presence of polyethylene glycol (PEG). Scanning electron microscopy images showed that the average particle size is 30±9 nm and the particle shape is mostly spherical. The chemical formulation of Pb(BO2)2 H2O was confirmed by infrared spectroscopy, inductively coupled plasma and thermal gravimetric analysis (TGA). The percentage of PEG molecules on the particle surface equal to 2.5 % was determined by TGA. Optical reflectance measurement was performed by UV-Vis spectroscopy. Based on the Kubelka-Munk function, it was calculated that the Pb(BO2)2 H2O nanostructures have a direct band gap of 4.6 eV.

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Thermochemistry of two lead borates; Pb(BO2)2·H2O and PbB4O7·4H2O

Cited by 3 publications

References 18 publications

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Determination of standard molar enthalpies of formation for the two lead borates: Pb4B10O19·2.5H2O and Pb6B11O18(OH)9

Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures

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Thermochemistry of two lead borates; Pb(BO2)2·H2O and PbB4O7·4H2O

Cited by 3 publications

References 18 publications

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb2[Ga(B5O10)]·4H2O

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb2[Ga(B5O10)]·4H2O

Determination of standard molar enthalpies of formation for the two lead borates: Pb4B10O19·2.5H2O and Pb6B11O18(OH)9

Developing of buffer-precipitation method for lead metaborate (Pb(BO2)2 H2O) nanostructures

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Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Synthesis, Characterization, and Thermochemical Properties of a Microporous Crystal Material for Rb₂[Ga(B₅O₁₀)]·4H₂O

Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures