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Electrochemical reduction of uranium and rhenium in hydrochloric acid system

  • Yingcai Wang EMAIL logo , Qian Liu , Meiyang Quan , Yusheng Yang , Yuhui Liu , Ying Dai , Rong Hua , Zhimin Dong , Zhibin Zhang and Yunhai Liu
Published/Copyright: April 8, 2022
Radiochimica Acta
From the journal Radiochimica Acta Volume 110 Issue 5

Abstract

The electrochemical reduction of U(VI) and Re(VII) ions on Pt and Mo metals are discussed. The electrochemical behavior of U(VI) and Re(VII) in hydrochloric acid media was investigated using various electrochemical techniques. By analyzing the cyclic voltammogram of U(VI) and Re(VII) recorded on Pt electrode, a series of electrochemical reactions associated with uranium and rhenium were recognized, indicating that U(VI) and Re(VII) undergoes a single-step electron and multistep electron process under experimental conditions, respectively. The reduction of U(VI) and Re(VII) was found to be controlled by charge transfer and diffusion in hydrochloric acid media. The diffusion coefficient of U(VI) and Re(VII)was determined to be 4.22–5.99 × 10−6 cm2 s−1 and 1.50–2.90 × 10−5 cm2 s−1, respectively, and the activation energy for the diffusion are calculated to be 18.12 kJ mol−1 and 14.52 kJ mol−1 by cyclic voltammetry at different temperatures. The reduction process of U(VI) and Re(VII) at hydrochloric acid is further studied by potentiostatic electrolysis. It is feasible to realize the reduction of uranium and rhenium from aqueous solution by electrolysis.

Keywords: electrochemical reduction; kinetic parameter; rhenium; uranium
Corresponding author: Yingcai Wang, Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China; School of Nuclear Science and Engineering, East China University of Technology, Nanchang 330013, China, E-mail:

Funding source: National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809

Award Identifier / Grant number: 330013

Award Identifier / Grant number: 21906018

Award Identifier / Grant number: 21906019

Award Identifier / Grant number: 22076022

Award Identifier / Grant number: 22066003

Award Identifier / Grant number: 2020NRE24

Award Identifier / Grant number: 2020NRE23

Funding source: Educational Department in Jiangxi Province

Award Identifier / Grant number: GJJ180371

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: The work was financially supported by the National Natural Science Foundation of China, State Key Laboratory of Nuclear Resources and Environment (East China University of Technology), Nanchang, 330013, Jiangxi, China (Nos. 21906018, 21906019, 22076022, 22066003, 2020NRE24 and 2020NRE23) and the Fundamental Research funds for the Educational Department in Jiangxi Province (GJJ180371).

  3. Conflict of interest statement: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Received: 2021-10-06
Accepted: 2022-02-10
Published Online: 2022-04-08
Published in Print: 2022-05-25

© 2022 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Spectroscopic investigation of the different complexation and extraction properties of diastereomeric diglycolamide ligands
  4. Influence of plutonium oxidation state on the formation of molecular hydrogen, nitrous acid and nitrous oxide from alpha radiolysis of nitric acid solution
  5. Efficient enrichment of U(VI) by two-dimensional layered transition metal carbide composite
  6. Application of artificial neural networks for predicting the isotopic composition of high burn-up solid plutonium sample using the 90–105 keV gamma-spectrum region
  7. Efficient and selective adsorption of U(VI) by succinic acid modified iron oxide adsorbent
  8. Electrochemical reduction of uranium and rhenium in hydrochloric acid system
  9. A sensitive improved method for analyzing diffusion coefficients of Cs in compacted bentonite with different lengths
  10. Adsorption behavior of chromium in an aqueous suspension of δ-alumina in absence and in presence of humic substances
  11. A novel theranostic probe [111In]In-DO3A-NHS-nimotuzumab in glioma xenograft
  12. Lead-free Sb-based polymer composite for γ-ray shielding purposes
https://doi.org/10.1515/ract-2021-1110
Keywords for this article
electrochemical reduction; kinetic parameter; rhenium; uranium

Articles in the same Issue

  1. Frontmatter
  2. Original Papers
  3. Spectroscopic investigation of the different complexation and extraction properties of diastereomeric diglycolamide ligands
  4. Influence of plutonium oxidation state on the formation of molecular hydrogen, nitrous acid and nitrous oxide from alpha radiolysis of nitric acid solution
  5. Efficient enrichment of U(VI) by two-dimensional layered transition metal carbide composite
  6. Application of artificial neural networks for predicting the isotopic composition of high burn-up solid plutonium sample using the 90–105 keV gamma-spectrum region
  7. Efficient and selective adsorption of U(VI) by succinic acid modified iron oxide adsorbent
  8. Electrochemical reduction of uranium and rhenium in hydrochloric acid system
  9. A sensitive improved method for analyzing diffusion coefficients of Cs in compacted bentonite with different lengths
  10. Adsorption behavior of chromium in an aqueous suspension of δ-alumina in absence and in presence of humic substances
  11. A novel theranostic probe [111In]In-DO3A-NHS-nimotuzumab in glioma xenograft
  12. Lead-free Sb-based polymer composite for γ-ray shielding purposes
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