Characterization of Ce-Bi intermetallic compound formations by electrolytic reduction in molten LiCl-KCl eutectic

Kim, Beom Kyu; Park, Byung Gi

doi:10.1016/j.electacta.2018.10.158

Cited by 14 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, the binding energy of 74.3 eV corresponding to Al 3+ is observed, [28] which is from the unavoidable oxidation of np‐Al 11 Ce 3 exposed to air. Similarly, from the Ce 3 d 3/2 XPS spectrum (Figure 2c), the peaks at 916.2, 906.6 and 903.5 eV can be attributed to Ce 4+ , while the peak at 900.6 eV can be indexed to Ce 3+ [29,30] …”

Section: Resultsmentioning

confidence: 83%

See 1 more Smart Citation

Al‐Ce Intermetallic Phase for Ambient High‐Performance Electrocatalytic Reduction of Nitrate to Ammonia

Wei

Ding

et al. 2023

ChemCatChem

View full text Add to dashboard Cite

The conversion of NO3‐‐to‐NH3 by electrolysis is an appealing approach for wastewater treatment; however, such a process is hindered by the lack of efficient catalysts. Herein, taking the nanoporous Al11Ce3 intermetallic phase as an example, its electrocatalytic NO3‐ reduction reaction capability is first demonstrated. Benefiting from the unique structural feature, optimized intermediates adsorption and formation behavior, and restrained hydrogen evolution, the catalyst shows a remarkable electrochemical performance with a peak faradaic efficiency of 91% and yield rate of 4.35 mg h–1 mgcat–1, along with robust activity over 30 h. Further, a Zn–NO3‐ battery by using Al11Ce3 as the cathode was designed, which gives a maximal power density of 8.5 mW cm–2 and a corresponding NH3 yield rate of 1.97 mg h–1 mgcat–1.

show abstract

Section: Resultsmentioning

confidence: 83%

“…Similarly, from the Ce 3d 3/2 XPS spectrum (Figure 2c), the peaks at 916.2, 906.6 and 903.5 eV can be attributed to Ce 4 + , while the peak at 900.6 eV can be indexed to Ce 3 + . [29,30] NO 3 RR performance…”

Section: Synthesis and Structural Characterizationmentioning

confidence: 99%

Al‐Ce Intermetallic Phase for Ambient High‐Performance Electrocatalytic Reduction of Nitrate to Ammonia

Wei

Ding

et al. 2023

ChemCatChem

View full text Add to dashboard Cite

show abstract

“…Over the past few years, many researchers have reported studies regarding the electrochemical behavior of RE(III) in molten salt. [27][28][29][30][31][32][33][34][35][36][37] The kinetic and thermodynamic parameters can be obtained via different electrochemical measurements. However, investigations regarding the electrochemical behavior of Y(III) in inorganic molten salts are rare in the literature.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical preparation and properties of a Mg–Li–Y alloyviaco-reduction of Mg(ii) and Y(iii) in chloride melts

Wang

Liu

et al. 2021

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…10 Electrochemical experiments to confirm the formation of Ce-Bi intermetallic compounds were conducted, and the electrochemical behaviors of Ce on the liquid Bi electrode in molten LiCl-KCl were investigated. 11,12 However, there were large discrepancies in the results for the standard Gibbs free energies of formation (ΔG f o ) of Ce-Bi intermetallic compounds obtained with the CALPHAD calculation, and from experimental results. [10][11][12] The activity coefficient of Ce in liquid Bi has been calculated in numerous studies, and they were summarized by Zhang et al 13 The phase diagram of the Ce-Sn binary system was calculated using the CALPHAD method.…”

mentioning

confidence: 99%

“…11,12 However, there were large discrepancies in the results for the standard Gibbs free energies of formation (ΔG f o ) of Ce-Bi intermetallic compounds obtained with the CALPHAD calculation, and from experimental results. [10][11][12] The activity coefficient of Ce in liquid Bi has been calculated in numerous studies, and they were summarized by Zhang et al 13 The phase diagram of the Ce-Sn binary system was calculated using the CALPHAD method. 14 However, the Ce-Sn binary system and the Ce-liquid Sn electrode system have not been investigated experimentally, and the activity coefficient of Ce in liquid Sn has not yet been identified.…”

mentioning

confidence: 99%

Electrochemical Behaviors and Thermodynamic Properties of Ce on Liquid Bi, Sn, and Zn Electrodes in Molten LiCl-KCl Salt

Park

Lim

Yun

2022

J. Electrochem. Soc.

View full text Add to dashboard Cite

This study presents the electrochemical behaviors and thermodynamic properties of Ce on liquid Bi, Sn, and Zn electrodes in molten LiCl-KCl eutectic salt. First, the Ce-metal binary systems on the solid tungsten electrode were investigated to determine the formation of Ce-metal intermetallic compounds during the electrowinning process. In these experiments, the formation of five Ce-Bi intermetallic compounds, eight Ce-Sn intermetallic compounds, and nine Ce-Zn intermetallic compounds was confirmed from the oxidation peaks of cyclic voltammetry. The standard Gibbs free energy of formation of each intermetallic compound was calculated from plateaus of the open-circuit chronopotentiometry. Subsequently, the electrochemical behaviors of Ce were investigated on liquid Bi, Sn, and Zn electrodes using cyclic voltammetry. In particular, while the reduction potentials of Li and Ce were too close to differentiate on the liquid Bi and Sn electrodes, they were not on the liquid Zn electrode. Peak potentials from cyclic voltammetry were utilized to calculate the activity coefficients of Ce in the liquid Bi, Sn, and Zn electrodes, which were 3.16×10-14, 1.82×10-12, and 9.05×10-10, respectively.

show abstract

Characterization of Ce-Bi intermetallic compound formations by electrolytic reduction in molten LiCl-KCl eutectic

Cited by 14 publications

References 20 publications

Al‐Ce Intermetallic Phase for Ambient High‐Performance Electrocatalytic Reduction of Nitrate to Ammonia

Al‐Ce Intermetallic Phase for Ambient High‐Performance Electrocatalytic Reduction of Nitrate to Ammonia

Electrochemical preparation and properties of a Mg–Li–Y alloyviaco-reduction of Mg(ii) and Y(iii) in chloride melts

Electrochemical Behaviors and Thermodynamic Properties of Ce on Liquid Bi, Sn, and Zn Electrodes in Molten LiCl-KCl Salt

Contact Info

Product

Resources

About