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<p>Some molecularly well-defined uranyl dicarboxylates are synthesized through the hydrothermal or solvothermal reaction of early dicarboxylic acids with uranyl nitrate, using either water or dimethylformamide (DMF) as the solvent. When these compounds are thermally decomposed in a spark plasma sintering (SPS) device, uranium carbides are formed. The resulting phases are determined by the uranium-to-carbon ratio of the precursor. In the case of the carbothermal reduction (CTR) of uranyl terephthalate, single-phase and nanocrystalline UC<sub>2</sub> is obtained.</p> Graphic Abstract <p></p>

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Nanocrystalline UC2 via SPS carbothermal reduction of molecular precursors

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月9日

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  • Adeline Surateau,
  • Olaf Walter,
  • Marco Cologna,
  • Karin Popa

摘要

Some molecularly well-defined uranyl dicarboxylates are synthesized through the hydrothermal or solvothermal reaction of early dicarboxylic acids with uranyl nitrate, using either water or dimethylformamide (DMF) as the solvent. When these compounds are thermally decomposed in a spark plasma sintering (SPS) device, uranium carbides are formed. The resulting phases are determined by the uranium-to-carbon ratio of the precursor. In the case of the carbothermal reduction (CTR) of uranyl terephthalate, single-phase and nanocrystalline UC2 is obtained.

Graphic Abstract