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Synthesis of dilute acid-soluble platinum compounds in molten KOH-B$$_{2}$$O$$_{3}$$ medium

Okada, Takashi*; Saito, Junichi  ; Namie, Masanari ; Nishimura, Fumihiro*

Dilute acid-soluble platinum compounds were synthesized in a molten KOH-B$$_{2}$$O$$_{3}$$ medium at 500$$^{circ}$$C in the presence of Ca(OH)$$_{2}$$. The acid-soluble platinum compounds formed on the surface of CaCO$$_{3}$$ generated during heat treatment. The platinum compounds consisted of a Pt-O bond, a diborate group, and AlO$$_{6}$$, and the network structure of these components can incorporate K and Ca ions. The compounds were extracted in 1M HCl (aq), and the Pt extraction efficiency was 83%. The morphology of the Pt compounds varied depending on the surface conditions of the reaction containers. When the compounds were synthesized on an alumina plate whose surface was modified with liquid sodium, fibrous platinum compounds were generated, and their crystallinity was higher than that obtained on an untreated alumina plate.

Language

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English

Journal

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Materials Today Communications (Internet)

Volume

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42

Number

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Pages

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p.111244_1 - 111244_6

Publication Year/Month

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2025/01

Meeting title

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Held date

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Location (country)

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Patent information

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Paper URL

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https://doi.org/10.1016/j.mtcomm.2024.111244

DOI for research data

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Link to research data related to this paper/report.

Keywords

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ナトリウム; 合成; 白金化合物

Research Facility

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FBRサイクル研修施設

Press Release

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JAEA R&D Navigator

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Cooperating Institute

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福井大学

Accesses

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- Accesses

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