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Mortar, a mixture of Portland cement, hydrated lime, sand, and water, is a crucial binding material in construction. Its primary function is to join masonry units together, filling gaps and ensuring a uniform distribution of weight across the structure. This helps in preventing potential weaknesses. Mortar also serves as a protective barrier against environmental elements such as water and wind, thereby safeguarding the interior of the structure. It also compensates for surface irregularities...
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Proyección de formas sólidas mecanoquímicas de estructuras de imidazolato zeolítico utilizando aditivos líquidos que

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Se ha detectado con éxito la presencia de formas de imidazolato de zinc (ZnIm2) mediante molienda mecanoquímica asistida por líquido (LAG). Este método descubrió ocho nuevas formas topológicas, acelerando el descubrimiento del marco metálico-orgánico.

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Área de la Ciencia:

  • Ciencias de los materiales
  • Química
  • La cristalografía

Sus antecedentes:

  • El imidazolato de zinc (ZnIm2) es el material de marco de imidazolato zeolítico (ZIF) más simple.
  • El descubrimiento de nuevas formas de ZnIm2 es crucial para comprender los marcos metálico-orgánicos (MOF).
  • Los métodos de síntesis existentes tienen limitaciones en la exploración de diversas estructuras de MOF.

Objetivo del estudio:

  • Aplicar sistemáticamente la molienda asistida por líquido (LAG) para el cribado de las formas de ZnIm2.
  • Para explorar el efecto de diferentes aditivos líquidos en la síntesis de ZnIm2.
  • Descubrir nuevas formas topológicas y cristalográficas distintas de ZnIm2.

Principales métodos:

  • En el caso de los aditivos líquidos, se recomienda utilizar un método de molienda mecanoquímica asistida por líquido (LAG).
  • Exploración computacional utilizando cálculos de la teoría funcional de la densidad periódica (DFT) corregida por dispersión.
  • Caracterización de las formas sintetizadas de ZnIm2, incluido el análisis cristalográfico.

Principales resultados:

  • Se identificaron ocho formas topológicas diferentes de ZnIm2, incluidas dos nuevas formas de la topología crb (BCT).
  • Sintetizó 13 formas sólidas cristalográficamente distintas, fases amorfas y un moc-Zn4Im8HIm interrumpido.
  • El GAL aceleró la síntesis y dirigió la formación de MOFs topológicamente diferentes.

Conclusiones:

  • LAG es una poderosa herramienta mecanoquímica para el descubrimiento de nuevos materiales metalorgánicos.
  • Los aditivos líquidos pueden influir significativamente y dirigir la síntesis de MOF.
  • Este estudio demuestra el potencial del GAL para predecir la síntesis de MOF dirigida por aditivos.