Dielectric relaxation of neodymium chloride in water and in methanol

Yoon, Tae Jun; Vigil, Matthew J.; Raby, Eric Y; Singh, Rajinder; Maerzke, Katie A.; Currier, Robert P.; Findikoğlu, Alp T.

doi:10.1016/j.molliq.2020.112981

Cited by 6 publications

(4 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MCMC algorithm was employed to fit the equivalent circuit models [26]. The MCMC method based on the Metropolis-Hastings algorithm is simple, free from parameter initialization in principle, and accurate [27].…”

Section: Bulk Resistance Estimationmentioning

confidence: 99%

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

Yoon¹,

Riglin²,

Sharan³

et al. 2022

Meas. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Speciﬁc conductance and frequency-dependent resistance (impedance) data are widely utilized for understanding the physicochemical characteristics of aqueous and non-aqueous ﬂuids and for evaluating the performance of chemical processes. However, the implementation of such an in-situ probe in high-temperature and high-pressure environments is not trivial. This work provides a description of both the hardware and software associated with implementing a parallel-type in-situ electrochemical sensor. The sensor can be used for in-line monitoring of thermal desalination processes and for impedance measurements in ﬂuids at high temperature and pressure. A comparison between the experimental measurements on the speciﬁc conductance in aqueous sodium chloride solutions and the conductance model demonstrate that the methodology yields reasonable agreement with both the model and literature data. A combination of hardware components, a softwarebased correction for experimental artifacts, and computational ﬂuid dynamics (CFD) calculations used in this work provide a sound basis for implementing such in-situ electrochemical sensors to measure frequency-dependent resistance spectra.

show abstract

Section: Bulk Resistance Estimationmentioning

confidence: 99%

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

Yoon¹,

Riglin²,

Sharan³

et al. 2022

Meas. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…When only dilute solutions were fitted, the optimal radius became close to the crystallographic radius σ Nd = 1.12 Å. The dependence of the optimal radius on the ionic strength of the system may indicate that a rigid hydration shell is formed in NdCl 3 (aq). , Since this work only focuses on dilute solutions at elevated temperatures, we used the crystallographic radius throughout …”

Section: Resultsmentioning

confidence: 94%

“…In this work, we used the in situ conductometric device we designed in our earlier work ,, to measure complex impedance, from which the limiting conductivities and the association constants were estimated in dilute aqueous NdCl 3 solutions up to 523 K along an isobar of 25 MPa. The Turq-Blum-Bernard-Kunz model, which was modified based on several earlier works, was well fitted to the experimental conductivity data.…”

Section: Discussionmentioning

confidence: 99%

“…Bernard et al demonstrated that the equivalent conductivities in lanthanum chloride (LaCl 3 ) solution at room temperature calculated without considering ion pair formation agree with the experimental data. Recent molecular simulations and spectroscopic studies reveal that this nonassociating behavior arises from a strong hydration shell. , On the other hand, REE sulfates are highly aggregated in an aqueous environment, , but their solubilities in water show a retrograde dependence on temperature.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrical Conductivities and Association Constants in Dilute Aqueous NdCl₃Solutions from 298 to 523 K along an Isobar of 25 MPa

et al. 2022

Self Cite

View full text Add to dashboard Cite

Electrical measurements were performed in dilute aqueous NdCl 3 solutions from 298 to 523 K along the 25 MPa isobar to obtain limiting conductivities and association constants. The specific conductivity data were estimated using a continuous flow cell and a Markov Chain Monte Carlo (MCMC) correction algorithm. The limiting conductivities for the salts in water were derived by regressing the mean spherical approximation model and speciation analyses based on the MCMC algorithm and the deep earth water model. The limiting conductivities derived from the experimental data were correlated using the Zimmerman-Arcis-Tremaine correlation and agreed well with a predictive correlation proposed by Smolyakov, Anderko, and Lencka. Only the first association constant between neodymium and chloride could be derived at low temperatures (<373 K) due to the apparent large statistical uncertainty of the second association constant. Above 373 K, both association constants could be derived and show a reasonable agreement with Migdisov and Williams-Jones and Gammons et al.

show abstract

PyOECP: A flexible open-source software library for estimating and modeling the complex permittivity based on the open-ended coaxial probe (OECP) technique

Yoon

Maerzke

Currier

et al. 2023

Computer Physics Communications

View full text Add to dashboard Cite

Dielectric relaxation of neodymium chloride in water and in methanol

Cited by 6 publications

References 80 publications

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

Electrical Conductivities and Association Constants in Dilute Aqueous NdCl₃Solutions from 298 to 523 K along an Isobar of 25 MPa

PyOECP: A flexible open-source software library for estimating and modeling the complex permittivity based on the open-ended coaxial probe (OECP) technique

Contact Info

Product

Resources

About

Dielectric relaxation of neodymium chloride in water and in methanol

Cited by 6 publications

References 80 publications

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

An in-situ conductometric apparatus for physicochemical characterization of solutions and in-line monitoring of separation processes at elevated temperatures and pressures

Electrical Conductivities and Association Constants in Dilute Aqueous NdCl3Solutions from 298 to 523 K along an Isobar of 25 MPa

PyOECP: A flexible open-source software library for estimating and modeling the complex permittivity based on the open-ended coaxial probe (OECP) technique

Contact Info

Product

Resources

About

Electrical Conductivities and Association Constants in Dilute Aqueous NdCl₃Solutions from 298 to 523 K along an Isobar of 25 MPa