铼在碱性溶液中的中间态

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-03-18 DOI:10.1007/s10967-025-10058-6

Liang Yang, Yanqiu Yang, Tongzai Yang

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引用次数: 0

摘要

为了全面了解铼的化学行为，采用电化学循环伏安法（CV）和紫外光谱技术研究了稀土（VII）在碱性KOH溶液中的还原过程。在循环伏安图上观察到与铼种类有关的电化学特征峰。结果表明，氢氧化物和O22−离子都参与了Re（VII）的还原反应。增加KOH的摩尔浓度有利于Re（VII）的还原。Re（VII）在碱性介质中的还原过程为Re（VII）→Re(V)→Re(IV)， Re的还原途径为ReO4−→（ReO）O(OH)43−→ReO(OH)3−。

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Intermediate states of rhenium in alkaline solution

The reduction of Re(VII) has been studied in alkaline KOH solution using electrochemical cyclic voltammetry (CV) and UV spectroscopy techniques in order to understand the chemical behavior of rhenium comprehensively. Electrochemical characteristic peak related to rhenium species were observed in cyclic voltammograms. The results showed that both hydroxide and O₂²⁻ ions were involved in the reduction reaction of Re(VII). Increasing KOH molarities facilitates the reduction of Re(VII). The reduction process of Re(VII) in alkaline media follow a sequence Re(VII) → Re(V) → Re(IV), and pathway for the Re species can be described by: ReO₄⁻ → (ReO)O(OH)₄³⁻ → ReO(OH)₃⁻.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.