Electrical conductivity of CuBr in the temperature range 500–1050 K

Wojakowska, Alina; Krzyżak, Edward

doi:10.1016/j.ssi.2005.09.001

Cited by 14 publications

(10 citation statements)

References 41 publications

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“…(1) where E a , A, and k B are the activation energy, the preexponential factor, and the Boltzmann constant, respectively [35][36][37]. In general, E a is estimated by fitting a linear function to the Arrhenius plot (ln[σT] vs. 1/T).…”

Section: Discussionmentioning

confidence: 99%

Concentration Effects of Silver Ions on Ionic Conductivities of Molten Silver Halides

Tahara

Ohno

Okada

et al. 2011

EPJ Web of Conferences

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Abstract. Ionic conductivities of molten (RbX) c (AgX) 1-c (X = Cl and I) mixtures were measured to clarify the concentration effects of silver ions on ionic conductivities of molten silver halides. It is found that the addition of RbX to molten AgX rapidly reduces the ionic conductivity with 0 ≤ c ≤ 0.4. It suggests that strong Ag-Ag correlation is necessary to fast conduction of Ag ions in molten state. The absolute values of ionic conductivity for (RbCl) c (AgCl) 1-c are larger than those for (RbI) c (AgI) 1-c mixtures at all compositions. These differences might relate to difference of diffusion constant between Cl -and I -and difference of effective charge carried by an ion between molten AgCl and AgI.

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Section: Discussionmentioning

confidence: 99%

Concentration Effects of Silver Ions on Ionic Conductivities of Molten Silver Halides

Tahara

Ohno

Okada

et al. 2011

EPJ Web of Conferences

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“…For (AgBr) 6 , the lowest energy one (a) can be viewed as two superposed triangles with relatively rotated 60.0°. The Ag-Br bond length is 2.39 Å, \AgBrAg 73.9°and \BrAgBr 161.2°.…”

Section: Geometriesmentioning

confidence: 99%

“…Among them, silver bromine has been the hottest subject of a number of experimental and theoretical investigations due to its wide applications in photograph, electrochemistry and metallurgy [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

The DFT study on the structures and properties of (AgBr)n (n⩽6)

Yin

Chen

Song

2010

Journal of Molecular Structure: THEOCHEM

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“…Bubbles forming in a liquid sample during the measurements were removed by stirring it with a silica rod. Figure 1 shows the temperature dependence of the ionic conductivity σ(T) for CuI together with the literature values of molten CuCl [10] and CuBr [11]. The σ for CuI rapidly increases with the phase transition from superionic to liquid phase around the melting point 605 °C, which is different from the behaviour of σ for AgI and CuBr.…”

mentioning

confidence: 96%

“…to estimate the activation energy E a , where A and k B are a pre-exponential factor and the Boltzmann constant, respectively [11]. The estimated E a for molten CuI is 0.14 eV.…”

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confidence: 99%

Ionic Conductivities of Molten CuI and AgI-CuI Mixtures

et al. 2017

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Ionic conductivities σ for molten CuI and AgI-CuI mixtures were measured in the temperature ranges of approximately 580-800 and 500-850 °C, respectively. The value of σ for molten CuI in the range is smaller than that for molten CuBr and CuCl. σ for molten AgI-CuI mixtures decreases with increasing CuI-concentration. The activation energies E a for molten AgI-CuI system were determined from the analysis of temperature dependence of σ by using the by Arrhenius type equation. E a for molten AgI-CuI gradually increase with increasing CuIconcentration.AgI and CuI are well known as superionic conductors. In these materials, Ag and Cu ions can migrate through the interstitial space of the sublattice formed by I ions in high temperature solid phase under the melting point [1][2][3]. It is also known that AgI-CuI mixtures form solid solutions, and both Ag and Cu ions can migrate through the anion sublattice in the high temperature superionic phase [4,5]. In the superionic phase of AgICuI mixtures, I ions form lattice, and the lattice type depends on the cationic concentration (b.c.c. for Ag-rich region and f.c.c. for Cu-rich region) [4,5]. Although the structure and ionic conductivity of AgI-CuI solid solutions have been investigated by several scholars using experimental and simulation techniques [5][6][7], those in molten phase have not been investigated yet.In the present study, we report the ionic conductivities of molten CuI and molten (AgI) 1-x (CuI) x mixtures measured by the four-probe method, and discuss the detailed information on ionic conduction with activation energies.AgI and CuI powder samples were purchased from Wako Pure Chemical Industries. Samples of (AgI) 1-x (CuI) x (x = 0.2, 0.5, 0.8) mixtures were prepared by mixing powder materials of AgI and CuI. A mixture sample was put into an original quartz cell with 4 mm * tahara@sci.u-ryukyu.ac.jp

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Electrical conductivity of CuBr in the temperature range 500–1050 K

Cited by 14 publications

References 41 publications

Concentration Effects of Silver Ions on Ionic Conductivities of Molten Silver Halides

Concentration Effects of Silver Ions on Ionic Conductivities of Molten Silver Halides

The DFT study on the structures and properties of (AgBr)n (n⩽6)

Ionic Conductivities of Molten CuI and AgI-CuI Mixtures

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