Redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution

Satoshi Hasegawa; Seong Yun Kim; Tatsuya Ito; Tetsunari Ebina

doi:10.1007/s10967-018-6002-2

Redox behavior of ^VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution

Satoshi Hasegawa, Seong Yun Kim, Tatsuya Ito, Tetsunari Ebina

ENG - Quantum Science and Energy Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

To evaluate the redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution, i.e., typical operating conditions for nuclear fuel reprocessing plants, oxidation rate measurements for VO²⁺ in boiling and non-boiling nitric acid solutions, thermodynamic calculations, and kinetic calculations were performed. The results indicated that the apparent oxidation rate of VO²⁺ to VO2+ is accelerated by a decrease in NO2- and HNO₂ concentrations owing to the boiling phenomena of nitric acid solution.

Original language	English
Pages (from-to)	1319-1328
Number of pages	10
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	317
Issue number	3
DOIs	https://doi.org/10.1007/s10967-018-6002-2
Publication status	Published - 2018 Sep 1

Keywords

Boiling phenomena
Neptunium
Nitric acid
Redox reaction
Reprocessing
Vanadium

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/s10967-018-6002-2

Cite this

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title = "Redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution",

abstract = "To evaluate the redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution, i.e., typical operating conditions for nuclear fuel reprocessing plants, oxidation rate measurements for VO2+ in boiling and non-boiling nitric acid solutions, thermodynamic calculations, and kinetic calculations were performed. The results indicated that the apparent oxidation rate of VO2+ to VO2+ is accelerated by a decrease in NO2- and HNO2 concentrations owing to the boiling phenomena of nitric acid solution.",

keywords = "Boiling phenomena, Neptunium, Nitric acid, Redox reaction, Reprocessing, Vanadium",

author = "Satoshi Hasegawa and Kim, {Seong Yun} and Tatsuya Ito and Tetsunari Ebina",

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T1 - Redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution

AU - Hasegawa, Satoshi

AU - Kim, Seong Yun

AU - Ito, Tatsuya

AU - Ebina, Tetsunari

PY - 2018/9/1

Y1 - 2018/9/1

N2 - To evaluate the redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution, i.e., typical operating conditions for nuclear fuel reprocessing plants, oxidation rate measurements for VO2+ in boiling and non-boiling nitric acid solutions, thermodynamic calculations, and kinetic calculations were performed. The results indicated that the apparent oxidation rate of VO2+ to VO2+ is accelerated by a decrease in NO2- and HNO2 concentrations owing to the boiling phenomena of nitric acid solution.

AB - To evaluate the redox behavior of VO2+/VO2+ as a simulant of NpO2+/NpO22+ in boiling nitric acid solution, i.e., typical operating conditions for nuclear fuel reprocessing plants, oxidation rate measurements for VO2+ in boiling and non-boiling nitric acid solutions, thermodynamic calculations, and kinetic calculations were performed. The results indicated that the apparent oxidation rate of VO2+ to VO2+ is accelerated by a decrease in NO2- and HNO2 concentrations owing to the boiling phenomena of nitric acid solution.

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KW - Neptunium

KW - Nitric acid

KW - Redox reaction

KW - Reprocessing

KW - Vanadium

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