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<p>Metal-Organic Framework (MOF) is very well explored in the literature for various applications of gas storage, water purification and catalysis. Catalysts for oxidation reactions are gaining importance recently, with major focus on single metal modified MOF, but limited work is reported on binary metal modified MOF. This study focuses on the preparation of Ceria-MOF (Ce-BTC) and Copper-Ceria MOF (Cu-Ce-BTC) using 1,3,5-tricarboxylic acid linkers through a hydrothermal method. The X-Ray Diffraction (XRD) analysis confirmed the crystalline nature and the presence of hydroxides of ceria in both the samples. Cu-Ce-BTC shows a higher crystallite size of 43.75&#xa0;nm compared to Ce-BTC (25.64&#xa0;nm). FTIR spectra verified the existence of various functional groups in the MOF contributed from the organic linker and metal interaction. The BET surface area analysis demonstrated that bi-metallic Cu-Ce-BTC shows 11.17 m<sup>2</sup>/g surface area, which is lower than that of Ce-BTC that shows 26.36 m<sup>2</sup>/g. The MOFs were tested for their catalytic activity in CO oxidation. Compared to the Ce-BTC MOF, Cu-Ce-BTC MOF shows improved catalytic activity with T<sub>50</sub> temperature of 375&#xa0;°C, despite having lower surface area that confirms the contribution of redox properties and synergistic effect of Cu and Ce for the oxidation reaction. This research offers valuable insights into the synthesis, characterization, and catalytic properties of these MOFs, highlighting their potential use in CO oxidation.</p>

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Bimetallic Cu–Ce Composites of Metal-Organic Frameworks: Synthesis, Characterization, and CO Oxidation Activity

  • 期刊论文

  • 发表日期：

    2026年5月26日

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  • Vishal B. Upare,
  • Shiva Kumar Yadandla,
  • Mohammed Ameen,
  • Jashwanth Kumar Vasampally,
  • A. Ajayraj,
  • J. Amala,
  • Anjana P. Anantharaman

摘要

Metal-Organic Framework (MOF) is very well explored in the literature for various applications of gas storage, water purification and catalysis. Catalysts for oxidation reactions are gaining importance recently, with major focus on single metal modified MOF, but limited work is reported on binary metal modified MOF. This study focuses on the preparation of Ceria-MOF (Ce-BTC) and Copper-Ceria MOF (Cu-Ce-BTC) using 1,3,5-tricarboxylic acid linkers through a hydrothermal method. The X-Ray Diffraction (XRD) analysis confirmed the crystalline nature and the presence of hydroxides of ceria in both the samples. Cu-Ce-BTC shows a higher crystallite size of 43.75 nm compared to Ce-BTC (25.64 nm). FTIR spectra verified the existence of various functional groups in the MOF contributed from the organic linker and metal interaction. The BET surface area analysis demonstrated that bi-metallic Cu-Ce-BTC shows 11.17 m2/g surface area, which is lower than that of Ce-BTC that shows 26.36 m2/g. The MOFs were tested for their catalytic activity in CO oxidation. Compared to the Ce-BTC MOF, Cu-Ce-BTC MOF shows improved catalytic activity with T50 temperature of 375 °C, despite having lower surface area that confirms the contribution of redox properties and synergistic effect of Cu and Ce for the oxidation reaction. This research offers valuable insights into the synthesis, characterization, and catalytic properties of these MOFs, highlighting their potential use in CO oxidation.