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<p>In view of the excellent C<sub>2</sub> hydrocarbon separation performance of the anionic layer-pillared porous coordination polymer, Cu(C<sub>12</sub>H<sub>10</sub>N<sub>4</sub>)<sub>2</sub>SiF<sub>6</sub> (NTU-65), the structure, composition, and synthetic phase purity of the material were comprehensively analyzed by elemental analysis, powder X-ray diffraction, and infrared spectroscopy. To address the actual demands of potential industrial applications, the molar heat capacity of NTU-65 in the temperature range of 193–393&#xa0;K was accurately determined for the first time by temperature-modulated differential scanning calorimetry, and the corresponding enthalpy and entropy were calculated. The thermogravimetric analysis results of the material show that the crystal structure of NTU-65 can be maintained up to 600&#xa0;K, confirming its excellent thermal stability and laying a solid foundation for the transition from the laboratory to practical applications.</p>

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Measurement of heat capacities and thermodynamic analysis for an anionic layer-pillared PCP

  • 期刊论文

  • 发表日期：

    2025年11月14日

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  • Shuang Liu,
  • Xiao-Ya Wu,
  • Pei-Pei Tian,
  • Zhen-Bang Guo,
  • Li-Xian Sun,
  • Lan-Tao Liu

摘要

In view of the excellent C2 hydrocarbon separation performance of the anionic layer-pillared porous coordination polymer, Cu(C12H10N4)2SiF6 (NTU-65), the structure, composition, and synthetic phase purity of the material were comprehensively analyzed by elemental analysis, powder X-ray diffraction, and infrared spectroscopy. To address the actual demands of potential industrial applications, the molar heat capacity of NTU-65 in the temperature range of 193–393 K was accurately determined for the first time by temperature-modulated differential scanning calorimetry, and the corresponding enthalpy and entropy were calculated. The thermogravimetric analysis results of the material show that the crystal structure of NTU-65 can be maintained up to 600 K, confirming its excellent thermal stability and laying a solid foundation for the transition from the laboratory to practical applications.